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Gemco Parts Description Page 6

Part
Number
Product
Category
Description
1980-3426 Brake Parts Ametek Gemco 1980 Series Cam Limit Switch 
Engineered Part Number 
6 Circuit / Cams 
NEMA 4 Rated Enclosure, Watertight 
SPDT UL Rated Snap Switches 
Right Hand Unit 
Gear Multiplier, 4 to 1 Ratio 
Includes an Ametek Gemco 1/2 Inch Direct Drive Coupling. Maximum torque rating 300 lb.-in. 1/2 inch direct & sprocket drive 404 woodruff keyway & key. 50 turns of the adjusting screw will rotate coupling 360 degrees. For easily made incremental adjustment between drive shaft & cam box
1980-3434 Brake Parts Ametek Gemco 1980 Series Cam Box 
NEMA 12 Enclosure 
6 Circuits / Cams / Switches 
Double Ended Shaft Extension 
Pulse Generating Disc 
Built in 1983 for International Harvester
1980-3486 Brake Parts Ametek Gemco Cam Box 
Series 1980 
1980-3486 
6 Independent Circuit / Cam / Switch 
S.P.D.T. Switches, Single Pole Double Throw Precision Snap Acting Switches 
NEMA 1 Enclosure 
Left Hand Shaft Extension 
Add On feature for Tach Gen 
Tach Generator (supplied buy others) 
Lock Out Feature (accepts padlock) 
1980-3503 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-3503 
Series 1980 
NEMA 9 Enclosure with strip heater & thermostat 
11 Cams / Circuits / Switches 
Timing Dial is included 
Straight Drive Gear Reducer 10 to 1 Ratio 
4 to 6 weeks to ship.
1980-3510 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-3510 Similar to 1980-1204-L-SP-X 
Series 1980 
12 = NEMA 12 Enclosure 
04 = 4 Independent Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
Specially machined cams 2 @ 15 Degrees Dwell & 2 @ 60 Degrees Dwell 
Special 1950-1413 Switches. SPDT Slow Make - Slow Break, can be wired for Normally Open or Normally Closed Circuits. 8 screw terminals. The 1950-1413 previously supplied switch is no longer available. It was a SPST switch with a normally closed contact only  
X = No Timing Dial or Dial Window is provided 5/6
1980-3742 Brake Parts Ametek Gemco Rotating Cam Limit  
Series 1980 
NEMA 9 Enclosure 
11 Cams / Circuits / Switches 
Double Pole Double Throw Switches 
Straight Drive Gear Reducer 
12 to 1 Gear Ratio 
With Timing Dial, Strip Heater & Thermostat
1980-3809 Brake Parts Ametek Gemco Cam Limit Switch 
Engineered Part Number 
Like 1980-409-R-SP-X with Tach Gen., Spring Return & Clutch
1980-3875A Brake Parts Ametek Gemco Rotating Cam Limit Switch. Specially engineered product
1980-3989 Brake Parts Ametek Gemco Rotating Cam Limit Switch  
1 = NEMA 1 Rated Enclosure 
08 = 8 Independent Cams / Circuits / Switches  
X = No shaft extension opposite gearbox / no double shaft extension  
Engineered product with both Single & Double Throw Switches 
X = No Timing Dial or Dial Window is to be provided 
R= Right Angle Gear Reducer 
40 = 40 to 1 Gear Ratio 
R1 = Right End Gear Reducer Position 1
1980-3990 Brake Parts Ametek Gemco Rotating Cam Limit Switch 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
08 = 8 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No shaft extension opposite gearbox / no double shaft extension  
Engineered product with both Single & Double Throw Switches, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
R= Right Angle Gear Reducer 
20= 20 to 1 Gear Ratio 
L1 = Left End Gear Reducer Shaft Location 1
1980-401-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-401-R-SP-X 
Series 1980 
4 = NEMA 4 Water Resistant Enclosure 
01 = 1 Cams / Circuit / Switch 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw Snap Action Switch U.L. Listed 
X = No Timing Dial or Dial Window is provided 
3 Year Warranty 
(19LBS)
1980-402-D-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-402-D-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
02 = 2 Independent Cams / Circuits / Switches 
D = Double Shaft Extension from enclosure, 2 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(18LBS)
1980-402-X-DP-X-R-10-R1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-402-X-DP-X-R-10-R1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
02 = 2 Independent Cams / Circuits / Switches. The micro-adjust cams maintain accuracy / repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand. The cams have a switch setting range of 4 through 356 Degrees 
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 8 screw terminals per switch.Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial 
R= Right Angle Gear Reducer 
10 = 10 to 1 Gear Ratio 
R1 = Right End Gear Reducer Shaft Location 1
1980-403-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-403-R-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
03 = 3 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty 
(20BS)
1980-403-X-DP-X-S-200-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-403-X-DP-X-S-200-L 
Series 1980 
4 = NEMA 4 Enclosure 
3 = 3 Cams / Circuits / Switches 
X = No shaft extension opposite gear box  
DP = DPDT Switches / Double Pole Double Throw 
X = No Timing Dial or Dial Window is provided 
S = Straight Drive Gear Reducer 
200 = 200 to 1 Gear Ratio 
L = Left End Shaft Location 
26 LBS Gross
1980-404 X-SP-R-X-S-60-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-X-SP-R-X-S-60-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No shaft extension opposite gearbox / no double shaft extension  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = R = Rubber boot on Switch Plunger for additional moisture protection 
X = No Timing Dial or Dial Window is to be provided 
S= Straight Drive Gear Reducer. Shaft parallel to main shaft 
60 = 60 to 1 Gear Ratio 
R = Right End Gear Reducer Location 
(26LBS)
1980-404-D-SP-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-D-SP-R-X  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell04 = NEMA 4 Rated Enclosure 
04 = 4 Cams / Circuits / Switches 
D = Double / 2 Shaft Extensions from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
R = Rubber Boot on Switch Plunger for addition moisture & contaminant protection 
X = No Timing Dial or Dial Window is provided 
3 Year Limited Warranty  
(19LBS)
1980-404-L-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-L-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
4 = 4 Independent Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed. Switches can be wired to be a Normally Open or Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial or Dial Window is provided 
3 Year Warranty 
(18LBS)
1980-404-R-DP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-R-DP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
4 = 4 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed. Switches can be wired to be a Normally Open or Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial or Dial Window is provided 
3 Year Warranty 
(18LBS)
1980-404-R-SP-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-R-SP-R-X  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell04 = NEMA 4 Rated Enclosure 
4 = 4 Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
R = Rubber Boot on Switch Plunger for addition moisture & contaminant protection 
X = No Timing Dial or Dial Window is provided 
(21LBS)
1980-404-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
4 = 4 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed. Switches can be wired to be a Normally Open or Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial or Dial Window is provided 
3 Year Warranty 
(20LBS)
1980-404-X-SP-R-X-S-28L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-X-SP-R-X-S-28-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No shaft extension opposite gearbox  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
S = Straight Drive Gear Reducer 
28 = 28 to 1 Gear Ratio 
L = Left End Gear Reducer 
(24LBS)
1980-404-X-SP-R-X-S-60-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-X-SP-R-X-S-60-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No shaft extension opposite gearbox  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
S = Straight Drive Gear Reducer 
60 = 60 to 1 Gear Ratio 
R = Right End Gear Reducer 
(24LBS)
1980-404-X-SP-X-R-15-R2 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-X-SP-X-R-15-R2 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed. Switches can be wired to be a Normally Open or Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial is to be provided 
R = Right Angle Gear Reducer 
15 = 15 to 1 Gear Ratio 
R = Right End Shaft Location 
2 = Shaft Location Position 2
1980-404-X-SP-X-R-60-R2 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-X-SP-X-R-60-R2 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed. Switches can be wired to be a Normally Open or Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial is to be provided 
R = Right Angle Gear Reducer 
60 = 60 to 1 Gear Ratio 
R = Right End Shaft Location 
2 = Shaft Location Position 2
1980-404-X-SP-X-S-100-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-X-SP-X-S-100-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
04 = 4 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
S = Straight Drive Gear Reducer 
100 = 100 to 1 Gear Ratio 
L = Left End Shaft Location 
(29LBS)
1980-404-X-SP-X-S-35-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-404-X-SP-X-S-35-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
04 = 4 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial 
S = Straight Drive Gear Reducer 
35 = 35 to 1 Gear Ratio 
R = Right End Shaft Location
1980-405-D-DP-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-405-D-DP-R-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure, Watertight 
05 = 5 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
D = Double Shaft Extension from Enclosure, shaft out both ends 
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 8 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boot / Seal on the Switch Plunger for additional moisture & dust protection  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty
1980-405-D-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-405-D-SP-X 
Series 1980 
4 = NEMA 4 Enclosure 
5 = 5 Cams / Circuits / Switches 
D = Double Shaft Extension  
SP = SPDT Switches / Single Pole Double Throw 
X = No Timing Dial or Dial Window is provided
1980-405-R-SP-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-405-R-SP-R-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure, Watertight 
05 = 5 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boot / Seal on the Switch Plunger for additional moisture & dust protection  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(22LBS)
1980-405-R-SPP-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-405-R-SPP-R-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Watertight Enclosure 
05 = 5 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SPP = SPDT Switches / Single Pole Double Throw with the Optional Plug-In Socket. Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660 
R = Rubber Boot option on Switch Plunger for additional moisture protection  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(22LBS)
1980-405-X-DP-X-S-200-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-405-X-DP-X-S-200-L 
Series 1980 
4 = NEMA 4 Enclosure 
5 = 5 Cams / Circuits / Switches 
X = No shaft extension opposite gear box  
DP = DPDT Switches / Double Pole Double Throw 
X = No Timing Dial or Dial Window is provided 
S = Straight Drive Gear Reducer 
200 = 200 to 1 Gear Ratio 
L = Left End Shaft Location 
(30LBS)
1980-406-D-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-D-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure, Watertight 
06 = 6 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
D = Dual Shafts Extending from Enclosure,Two 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty 
(36LBS)
1980-406-L-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-L-SP-TD1  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty 
(27LBS)
1980-406-R-3DP/3SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-R-3DP/3SP-TD1  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
3DP = Qty 3 DP Switches 
3SP = Qty 3 SP Switches 
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty
1980-406-R-DP-X-S-2-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-X-DP-X-S-2-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
06 = 6 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 8 screw terminals per switch 
X = No Timing Dial 
S = Straight Drive Gear Reducer 
2 = 2 to 1 Gear Ratio 
L = Left End Gear Reducer / Shaft Location
1980-406-R-SP-R-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-R-SP-TD1  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boot on switch plunger for moisture & dust protection  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty 
(36LBS)
1980-406-R-SP-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-R-SP-X  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boot option on switch plunger for additional protection from moisture & dust 
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(24LBS)
1980-406-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-R-SP-TD1  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty 
(27LBS)
1980-406-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-R-SP-X  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(24LBS)
1980-406-X-DP-X-M-3-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-X-DP-X-M-3-R 
Series 1980 Vertex S827-6800-30 
4 = NEMA 4 Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches, Double Pole Double Throw Snap Action Switches U.L. Listed 
X = No Timing Dial 
M= Multiplier Drive 
3 = 1 to 3 Multiplier Ratio 
R = Right End Shaft Location 
1980-4478
1980-406-X-DP-X-S-2-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-R-DP-X-S-2-L 
Series 1980 
4 = NEMA 4 Enclosure 
6 = 6 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite Gear Box  
DP = D.P.D.T. Switches, Double Pole Double Throw, Snap Acting 
X = No Timing Dial 
S= Straight drive Gear Reducer  
2 = 2 to 1 Gear Ratio 
L = Left End Shaft Location
1980-406-X-SP-R-X-S-20-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-X-SP-R-X-S-20-R 
Series 1980 
4 = NEMA 4 Enclosure 
6 = 6 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches 
R = Rubber Boot Option 
X = No Timing Dial 
S = Straight Gear Reducer 
20 = 20 to 1 Gear Ratio 
R = Right Shaft Location
1980-406-X-SP-TD4-R-15-L8 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-X-SP-TD4-R-15-L8 
Series 1980  
4 = NEMA 4 Enclosure 
6 = 6 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw 
TD4 = Timing Dial 0 - 360 Vertical Labeling for Counter Clock Wise Rotation  
R = Right Angle Gear Reducer 
15 = 15 to 1 Gear Ratio 
L = Left End Shaft Location 
8 = Shaft Location Position 8 
3 Year Warranty
1980-406-X-SP-X-R-15-R1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-X-SP-X-R-15-R1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed. Switches can be wired to be a Normally Open or Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial is to be provided 
R = Right Angle Gear Reducer 
15 = 15 to 1 Gear Ratio 
R = Right End Shaft Location 
1 = Shaft Location Position 1
1980-406-X-SP-X-R-96-L-4 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-X-SP-X-R-96-L4 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed. Switches can be wired to be a Normally Open or Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial is to be provided 
R = Right Angle Gear Reducer 
96 = 96 to 1 Gear Ratio 
L = Left End Shaft Location 
1 = Shaft Location Position 4 
(34LBS)
1980-406-X-SP-X-S-14-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-X-SP-X-S-14-R 
Series 1980 30 LBS Gross 
4 = NEMA 4 Enclosure 
6 = 6 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw 
X = No Timing Dial 
S= Straight Drive Gear Reducer 
14 = 14 to 1 Gear Ratio 
R = Right End Shaft Location
1980-406-Y-SP-TD1-S-15-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-Y-SP-TD1-S-15-L 
Series 1980  
4 = NEMA 4 Enclosure 
6 = 6 Independent Cams / Circuits / Switches 
Y = Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw 
TD1 = Timing Dial 0 - 360 Clock Wise 
S = Straight Drive Gear Reducer 
15 = 15 to 1 Gear Ratio 
L = Left End Shaft Location 
3 Year Warranty 
(35LBS)
1980-406-Y-SP-X-S-8-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-406-Y-SP-X-S-8-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
06 = 6 Independent Cams / Circuits / Switches 
Y = Shaft Extension Opposite the Gear Box / Double Shaft Extension 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial 
S= Straight Drive Gear Reducer 
8 = 8 to 1 Gear Ratio 
R = Right End Shaft Location
1980-407-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-407-R-SP-X  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
07 = 7 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension from Enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty
1980-407-X-SP-R-X-S- Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-407-X-SP-R-S-100-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
07 = 7 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No Shaft Extension Opposite Gear Box  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boot option on Switch Plunger for additional moisture protection 
X = No Timing Dial is to be provided  
S = Straight Drive Gear Reducer 
100 = 100 to 1 Gear Ratio 
L = Left End Gear Reducer / Main Shaft
1980-407-X-SP-R-X-S-32R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-407-X-SP-R-S-32-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
07 = 7 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
X = No Shaft Extension Opposite Gear Box  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boot option on Switch Plunger for additional moisture protection 
TD2 = Timing Dial Labeled for Reverse Rotation  
S = Straight Drive Gear Reducer 
32 = 32 to 1 Gear Ratio 
R = Right End Gear Reducer / Main Shaft
1980-408-L-SP-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-408-L-SP-R-X  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Watertight Enclosure 
08 = 8 Independent Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
R = Rubber Boot option on switch plunger 
X = No Timing Dial or Dial Window is to be provided 
3 Year Warranty 
(32LBS)
1980-408-L-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-408-L-SP-X  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Watertight Enclosure 
08 = 8 Independent Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial or Dial Window is to be provided 
3 Year Warranty 
(32LBS)
1980-408-R-DP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-408-R-DP-TD1  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Watertight Enclosure 
08 = 8 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuits. 8 screw terminals per switch 
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Warranty 
(32LBS)
1980-408-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-408-R-SP-X  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Watertight Enclosure 
08 = 8 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial or Dial Window is to be provided 
3 Year Warranty 
(32LBS)
1980-408-X-DP-TD1-R-1-L1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-408-X-DP-TD1-R-1-L1  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Watertight Enclosure 
08 = 8 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite Gear Box  
DP = DPDT Switches / Double Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuits. 8 screw terminals per switch 
TD1 = Timing Dial Labeled for C.W. Rotation 
R = Right Angle Gear Reducer 
L1 = Shaft Location from Gear Box
1980-408-X-SP-TD1-X-M-3-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-408-X-SP-TD1-M-3-R 
Series 1980  
4 = NEMA 4 Enclosure 
08 = 8 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw 
TD1 = Timing Dial Clock Wise Rotation 
M= Multiplier Drive 
3 = 1 to 3 Multiplier Ratio 
R = Right End Shaft Location
1980-408-Y-SP-X-M-4-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-408-Y-SP-X-M-4-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
08 = 8 Independent Cams / Circuits / Switches 
Y = Shaft Extension Opposite the Gear Box 
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
X = No Timing Dial 
M= Multiplier Drive 
4 = 1 to 4 Multiplier Ratio 
L = Left End Shaft Location 
(36LBS)
1980-409-R-4DP/5SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-409-R-4DP/5SP-TD1  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
09 = 9 Independent Cams / Circuits / Switches 
R = Right Hand Shaft Extension from enclosure  
4DP = Qty 4 DP Switches 
5SP = Qty 5 SP Switches 
TD1 = Timing Dial Labeled for C.W. Rotation 
3 Year Limited Warranty
1980-410-D-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-410-D-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
10 = 10 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
D = Double Shaft Extension from both sides Enclosure 2  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty
1980-410-R-SP-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-410-R-SP-R-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
10 = 10 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
R = Rubber Boot / Seal on the Switch Plunger for additional moisture & dust protection  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty
1980-410-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-410-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
4 = NEMA 4 Rated Enclosure 
10 = 10 Independent Cams / Circuits / Switches  
The micro-adjust cams maintain an accuracy and repeatability of 1/4 degree and can be adjusted by use of a tool supplied and mounted inside the enclosure or by hand 
R = Right Hand Shaft Extension  
SP = SPDT Switches / Single Pole Double Throw, Snap Action, U.L. Listed Switches which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty
1980-410-X-SP-TD1-S-80-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-410-X-SP-TD1-S-80-R 
Series 1980  
4 = NEMA 4 Enclosure 
10 = 10 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw 
TD1 = Timing Dial, Clockwise Rotation 
S = Straight Drive Gear Reducer 
80 = 80 to 1 Gear Ratio 
R = Right End Shaft Location
Updated on February 26, 2016 1:44 PM
203 Vest Avenue
Valley Park, MO 63088
Toll Free: (888) SPECTECH
Phone: (636) 537-0202
Fax: (636) 537-1405
E:mail: sales@spectechind.com