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Gemco Products Description Page 5

Part
Number
Product
Category
Description
1980-1204-X-SP-X-S-8-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-X-SP-X-S-8-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 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 
8 = 8 to 1 Gear Ratio 
L = Left End Shaft Location
1980-1204-X-SP-X-S-8-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-X-SP-X-S-8-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 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 
8 = 8 to 1 Gear Ratio 
R = Right End Shaft Location
1980-1205-D-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1205-D-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
04 = 4 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 
TD1 = Timing Dial Labeled for Clockwise Rotation, 0-360 Degrees 
3 Year Limited Warranty 
(22LBS)
1980-1205-L-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1205-L-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 
L = Left Hand 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 
TD1 = Timing Dial Labeled for C.W. Rotation  
3 Year Limited Warranty 
(24LBS)
1980-1205-L-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1205-L-SP-X 
Series 1980 
12 = NEMA 12 Enclosure 
5 = 5 Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
X = No Timing Dial or Dial Window is provided
1980-1205-R-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1205-R-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated 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, 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 
TD1 = Timing Dial Labeled for C.W. Rotation  
3 Year Limited Warranty 
(24LBS)
1980-1205-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1205-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated 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, 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  
3 Year Limited Warranty 
(22LBS)
1980-1205-X-DP-S-6-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1205-X-DP-X-S-6-R 
Series 1980  
12 = NEMA 12 Enclosure 
05 = 5 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches, Double Pole Double Throw 
X = No Timing Dial 
S = Straight Drive Gear Reducer 
6 = 6 to 1 Gear Ratio 
R = Right End Shaft Location 
1980-1206-D-DP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-D-DP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
6 = 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 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. 8 screw terminals per switch 
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(16LBS)
1980-1206-L-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-L-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
06 = 6 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 
(24LBS)
1980-1206-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
06 = 6 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 
(24LBS)
1980-1206-X-DP-R-X-S-14-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-X-DP-R-X-S-14-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 
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 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660 
R = Rubber Boots on the switch plunger for additional moisture & dust protection  
X = No Timing Dial 
S = Straight Drive Gear Reducer 
14 = 14 to 1 Gear Ratio 
R = Right Side, Gear Box & Main Shaft
1980-1206-X-DP-X-R-18-L1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-X-DP-X-R18-L1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 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 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
X = No Timing Dial 
R = Right Angle Drive Gear Reducer 
18 = 18 to 1 Gear Ratio 
L1 = Shaft Location
1980-1206-X-DP-X-S-1.33-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-X-DP-X-S-1.33-L 
Series 1980  
12 = NEMA 12 Enclosure 
6 = 6 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches, Double Pole Double Throw 
X = No Timing Dial 
S = Straight Drive Gear Reducer 
1.33 = 1.33 to 1 Gear Ratio 
L = Left End Shaft Location
1980-1206-X-DP-X-S-1.33-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-X-DP-X-S-1.33-R 
Series 1980  
12 = NEMA 12 Enclosure 
6 = 6 Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
DP = DPDT Switches, Double Pole Double Throw 
X = No Timing Dial 
S = Straight Drive Gear Reducer 
1.33 = 1.33 to 1 Gear Ratio 
R = Right End Shaft Location
1980-1206-X-DP-X-S36-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-X-DP-X-S-36-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
06 = 06 Independent 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. 4 screw terminals per switch 
X = No Timing Dial 
S = Straight Drive Gear Reducer 
36 = 36 to 1 Gear Ratio 
L = Left End Shaft Location
1980-1206-X-SP-R-X-S-16-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-X-SP-R-X-S-16-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 
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 on the switch plunger for additional moisture protection 
X = No Timing Dial or Dial Window is to be provided 
S= Straight Drive Gear Reducer 
16 = 16 to 1 Gear Ratio 
L = Left End Gear Reducer 
(28LBS)
1980-1206-X-SP-TD1-S-25-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-X-SP-TD1-S-25-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
TD1 = Timing Dial labeled for clock wise rotation 
S = Straight Drive Gear Reducer 
25 = 25 to 1 Gear Ratio 
R = Right End Shaft Location
1980-1206-X-SP-X-S-15-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-X-SP-S-15-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 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 
S = Straight Drive Gear Reducer 
15 = 15 to 1 Gear Ratio 
R = Right End Shaft Location 
(26LBS)
1980-1206-X-SP-X-S-30-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-X-SP-X-S-30-R 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 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 
30 = 30 to 1 Gear Ratio 
R = Right End Shaft Location 
(26LBS)
1980-1206-X-SP-X-S-8-R Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1206-X-SP-X-S-8-R  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell  
12 = NEMA 12 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  
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  
8 = 8 to 1 Gear Ratio  
R = Right End Shaft Location
1980-1207-D-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1207-D-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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  
D = Dual (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 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial C.W. Clock Wise Rotation 
3 Year Warranty
1980-1208-D-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1208-D-SP-TD1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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  
D = Dual (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 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD1 = Timing Dial labeled for Clock Wise Rotation 
3 Year Warranty
1980-1208-D-SP-TD3 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1208-D-SP-TD3 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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  
D = Dual (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 
Switch Settings 4 to 356 Degrees - Gemco Manufactured Precision Snap Switches - UL Listed Assembly File E56660  
TD3 = Timing Dial labeled for Clock Wise Rotation with the main shaft vertical 
3 Year Warranty 
(32LBS)
1980-1208-L-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1208-L-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
08 = 8 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 
(26LBS)
1980-1208-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1208-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated 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 
(26LBS)
1980-1208-X-SP-TD1-S-14-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1208-X-SP-TD1-S-14-L 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Enclosure 
08 = 08 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 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 Clockwise Rotation 
S = Straight Drive Gear Reducer 
14 = 14 to 1 Gear Ratio 
L = Left End Shaft Location 
(37LBS)
1980-1208-X-SP-X-R-18-L7 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1208-X-SP-X-R-18-L7 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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  
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 
R= Right Angle Gear Reducer 
18 = 18 to 1 Gear Ratio 
L7 = Left End Gear Reducer Shaft Location 7 
(28LBS)
1980-1208-X-SP-X-R-25-R1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1208-X-SP-X-R-25-R1 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 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 is to be provided  
R = Right Angle Drive Gear Reducer 
25 = 25 to 1 Gear Ratio 
R1 = Shaft Location
1980-1208-X-SP-X-S-30-L Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1204-X-SP-X-S-30-L 
Series 1980  
12 = NEMA 12 Enclosure 
08 = 08 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw Snap Action 
X = No Timing Dial 
S = Straight Drive Gear Reducer 
30 = 30 to 1 Gear Ratio 
L = Left End Shaft Location 
(28LBS)
1980-1209-L-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1209-L-SP-X 
Series 1980 
12 = NEMA 12 Enclosure 
9 = 9 Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
X = No Timing Dial or Dial Window is provided
1980-1210-R-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1210-R-SP-R-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 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 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
1980-1210-X-SP-R-X-R-7.5-L1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1210-X-SP-R-X-R-7.5-L1 
Series 1980  
12 = NEMA 12 Enclosure 
10 = 10 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw Snap Switch U.L. Listed 
R = Rubber Boot on Snap Switch Plunger 
X = No Timing Dial 
R = Right Angle Gear Reducer 
7.5 = 7.5 to 1 Gear Ratio 
L1 = Right End Shaft Location, Position 1 
(34LBS)
1980-1211-L-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1215-L-SP-TD1 
Series 1980 
12 = NEMA 12 Enclosure 
15 = 15 Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
TD1 = Timing Dial C.W. Clock Wise Rotation
1980-1212-D-SP-TD3 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1212-D-SP-TD3 
Series 1980 
12 = NEMA 12 Enclosure 
12 = 12 Cams / Circuits / Switches 
D = Double Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
TD3 = Timing Dial, Clock Wiser Rotation, Vertical Mounting
1980-1212-D-SP-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1212-D-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
12 = 12 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 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 
(21LBS)
1980-1212-X-DP-X-R-5-R3 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1212-X-DP-X-R-5-R3 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
12 = 12 Independent 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 
R= Right Angle Precision Gear Reducer 
5 = 5 to 1 Gear Ratio 
R3 = Right End Gear Reducer Shaft Location 3
1980-1212-X-DP-X-R-6-L7 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1212-X-DP-X-R-6-L7 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
12 = 12 Independent 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 
R = Right Angle Gear Reducer 
6 = 6 to 1 Gear Ratio 
R = Right End Shaft Location
1980-1215-L-SP-TD1 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1215-L-SP-TD1 
Series 1980 
12 = NEMA 12 Enclosure 
15 = 15 Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
TD1 = Timing Dial C.W. Clock Wise Rotation
1980-1216-R-SP-R-X Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1216-R-SP-R-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
12 = NEMA 12 Rated Enclosure 
16 = 16 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 dust & moisture protection  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(50LBS)
1980-1346 Brake Parts Ametek Gemco Rotating Cam Limit Switch like Model 1980-104-R-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 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 
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  
X = No Timing Dial or Dial Window is to be provided 
Special Engineered Product, 3 Cams with a provision for a 4th cam installed by the OEM. A switch is installed but the OEM provided their own or left out the cam in the spare area for future use 
3 Year Limited Warranty 
(12LBS)
1980-1535 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-1535 like a 1980-102-L-SP-X with a special main shaft 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
02 = 2 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 
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  
X = No Timing Dial or Dial Window is to be provided 
Specially Engineered Main Shaft Extension: 1/2 Inch Dia X 2 & 5/8 Inches Long 
Perkins Press 
(10LBS)
1980-1669 Brake Parts Ametek Gemco Deck Type Limit Switch. 3 Decks. 1950-1-B-A-AO
1980-1780 Brake Parts Ametek Gemco 1980-104-L-SP-X & a 1970-104 Drive-Chek
1980-1928 Brake Parts Ametek Gemco Rotating Cam Limit Switch 
Like Model 1980-104-L-SP-X 
Series 1980 
1 = NEMA 1 Enclosure 
4 = 4 Independent Cams / Circuits / Switches 
L = Left Hand Shaft Extension from enclosure  
SP = SPDT Switches / Single Pole Double Throw 
X = No Timing Dial or Dial Window is provided 
Special OEM Product provided to Midland Ross in 1975 
Has a special 2 & 7/16 Inch Main Shaft Extension from the Cam Box with the Shaft End Tapped for a 1/4 - 20 fastener 
(12LBS) 
1980-2090 Brake Parts Ametek Gemco Rotary Cam Limit Switch. 4 circuit, NEMA 12 Enclosure, Left Hand Shaft Extension, Qty. 3, S.P.D.T. & Qty. 1, D.P.D.T. Switches.
1980-2152 Brake Parts Ametek Gemco DUAL SHAFT Rotating Cam Limit Switch with Qty. 2, parallel shafts each having Qty. 3, circuits / cams / switches. Precision snap Acting D.P.D.T. Switches. Total 6 circuits. The 2 parallel shafts are coupled with a chain & sprocket inside the enclosure. A Gemco 3001-3 Adjustable Coupling is used to allow timing changes between the 2 shafts. Right hand shaft extension in position "D" with a second Gemco 3001-3 Adjustable Coupling. NEMA 4 Metal Enclosure. Originally designed for Kaiser Steel in 1977
1980-2179 Brake Parts Ametek Gemco Rotating Cam Limit Switch Like a 1980-103-L-SP-X with 2 Special Cams 
Cam #1 = SD0189100 (Min. Dwell) cir #1 location LH side  
Cam #2 = SD0164600 (Min. Lobe) cir #2 location  
Cam #3 = SD0117800 (Standard) cir #3 location  
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 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 
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  
X = No Timing Dial or Dial Window is to be provided 
3 Year Limited Warranty 
(12LBS)
1980-2312 Brake Parts Ametek Gemco Specially Engineered Rotating Cam Limit Switch  
Series 1980 Cam Box featuring some of the cams with Adjustable Timing & Dwell 
NEMA 1 Rated Enclosure, Specially Engineered Enclosure & Cover 
18 Independent Cams / Circuits / Switches  
R = Right Hand Shaft Extension from Enclosure  
Qty 16, 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 
Qty 2, 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 
13 Standard Cams, SD0117800 
2 Special 15 Degree Cams, SD0203000  
1 Special 75 Degree Cam, SD0203100  
2 Special 40 Degree Cams, 1/2 Circuit, Right Hand, SD0207500  
Internal Right Angle Gear Reducer with a having a 6:1 ratio  
3 Position Selector Switch, 22mm with a Black Lever, Spring Return  
9/6
1980-2366 Brake Parts Ametek Gemco Rotating Cam Limit Switch. 7 circuits / Cams / Switches. Single Pole Double Throw Switches. Dual Output Shafts. External Timing Dial with Pulse Disk and Switch. Includes # 3001-1 1/2 Inch Sprocket Drive Coupling.
1980-23875A Brake Parts Ametek Gemco Rotating Cam Limit Switch. Specially engineered product
1980-2441 Brake Parts Ametek Gemco Series 1980 Rotating Cam Limit Switch. 11 circuit cam box with 5 standard cams and 6 special cut cams with 20 degree lobes. SPDT switches with boots. Includes a right angle gear reducer with a 10 to 1 ratio mounted on the left end with a straight shaft in position L1 . NEMA 12 enclosures.
1980-2527 Brake Parts Ametek Gemco 1980 Series Cam Box 
OEM Link Systems 
NEMA 1 Enclosure 
2 Independent Circuits / Cam / Switches 
"Add a Cam" feature which allows enclosure space for the OEM or End User to add 2 cams at a latter date 
Right Hand Shaft Extension 
Tach Generator Module 
Precision Snap Acting Single Pole Double Trow Switches S.P.D.T. 
Roller Followers were included  
1980-2529 Brake Parts Ametek Gemco / Link Rotating Cam Limit Switch Model 1980-2529 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 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 which can be wired for either a Normally Open or a Normally Closed Circuit. 4 screw terminals per switch 
With Encoder, Brevel Motors, 902436 
Link Electric only
1980-2761 Brake Parts Ametek Gemco Rotating Cam Limit Switch 
Like Switch Model 1980-911-X-SP-TD1-S-12-L 
Series 1980 
9 = NEMA 9 Group F Enclosure 
11 = 11 Independent Cams / Circuits / Switches 
X = No Shaft opposite gearbox  
SP = SPDT Switches / Single Pole Double Throw Snap Action Switches U.L. Listed 
TD1 = Timing Dial Labeled for C.W. Rotation 
S = Straight Drive Gear Box 
12 = 12 to 1 Gear Ratio 
L = Gear Box Mounted to Left End 
With Strip Heater & Thermostat 
(50LBS)
1980-3004B Brake Parts Ametek Gemco Cam Limit Switch 
4 Circuit with SPDT Switches 
NEMA 1 with Custom Enclosure & Main Shaft Detail 
Left Hand Shaft Extension 
With the "ADD A CAM" feature for future or OEM addition of Cam / Circuit
1980-3010T Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-3010T, replaced 1980-3010 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Rated Enclosure 
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 
Left Hand Shaft Extension from Enclosure  
Qty 3, 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 
Qty 1, 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 
Add on Tach Gen Module PSD153603 Includes Drive Chek 1970-104 & 2 Special Cams SD2231 110 Degrees & Cam SD2382 45 Degrees on the DPDT Switch 4 weeks 6/7
1980-3087 Brake Parts Ametek Gemco 1980 Series Cam Box with Motion Detect.  
NEMA 1 Enclosure 
5 Circuit / Switch / Cam 
with Motion Detect
1980-3145 Brake Parts Ametek Gemco Special Rotating Cam Limit Switch. NEMA 1 Enclosure, 4 Cams / Circuits, Left Hand Shaft Extension, S.P.D.T. = Single Pole Double Throw Switches, 3 Standard Cams with a provision for a 4th cam installed by the OEM Bliss Salem. The switch is installed but we have no record of what type of cam Bliss Salem installed if any in the spare area. 2 weeks to ship.
1980-3146 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model like model 1980-106-L-SP-X 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 Enclosure 
06 = 5 Cams / Circuits / Switches, with the add a cam feature for a future circuit 
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 
(14LBS) 4/7
1980-3157 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-3157 
Series 1980 Cam Box featuring cams with Adjustable Timing & Dwell 
1 = NEMA 1 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  
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 
SD0197700 Optical Disc 
SD0194800 Motion Detect Switch in Circuit 6 
(29LBS) 7/6
1980-3315 Brake Parts Gemco 1980 Series Cam Box 
Specially engineered product 
4 Circuit 
NEMA 4X, 304 Stainless Steel Enclosure 
1 to 3 Straight Drive Gear Multiplier, Internally Mounted 
SPDT Switches with the Rubber Boot option 
Enclosure is heated with a Thermostat Controlled Strip Heater 
Double Shaft Extensions from enclosure 
2001403 8/7
1980-3327 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model Like model 1980-1210-X-SP-X-R-10-R1 
Series 1980  
12 = NEMA 12 Enclosure 
10 = 10 Independent Cams / Circuits / Switches 
X = No Shaft Extension Opposite the Gear Box 
SP = SPDT Switches, Single Pole Double Throw Snap Switch U.L. Listed 
X = No Timing Dial 
R = Right Angle Gear Reducer 
10 = 10 to 1 Gear Ratio 
R1 = Right End Shaft Location, Position 1 
Special 6 Inch Diameter Cams normally used with the Series 1997 Gate Hoist Products Line 
A larger enclosure is also supplied to enclose these cams 8/6 
(45LBS)
1980-3383 Brake Parts Ametek Gemco Rotating Cam Limit Switch Model 1980-3383 
Series 1980 
1 = NEMA 1 Enclosure 
10 = 10 Cams / Circuits / Switches 
2 of these cams do not have adjustable dwell. They are machined with 25 degrees of dwell  
Right Hand Shaft extension from enclosure  
9 Single Pole Double Throw Switches 
1 1950-1406 Slow Make - Slow Break Switch 
X = No Timing Dial or Dial Window is provided
Updated on February 26, 2016 1:43 PM
203 Vest Avenue
Valley Park, MO 63088
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Phone: (636) 537-0202
Fax: (636) 537-1405
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