Insert molded
terminal pins
Polished brass screws and lock washers
(solder terminals optional)
Gold over silver
contacts for versatile,
long-life switching
High-strength
beryllium copper
alloy spring
Rugged phenolic
case and cover
Features
Ultra-small travel differential
Mechanical life tested to 1 million cycles
Current switching to 20 amps
Wide variety of actuators
Screw or solder terminals standard
Low operating forces available
Specifications
Dielectric Strength: 1000VAC 50/60Hz for 1 minute
Insulation Resistance: 100M ohms min at 500VDC
Initial Contact Resistance: 15m ohms max
Temperature Range: -20° to +85°C
Materials
Case: Phenolic
Cover: Phenolic
Spring: Beryllium Copper Alloy
Contacts: Silver Alloy
Terminals: Brass Screw Terminals; Copper Alloy Solder Terminals
Lever Actuator: Stainless Steel
HEAVY-DUTY SNAP ACTION
GP Series
Electrical Ratings
Switch
Series UL1054 Rating
GP*B 20A, 1HP, 125VAC; 20A, 2HP, 250VAC; .5A, 125VDC; .25A, 250VDC
GP*C 15A, 1/8HP, 125VAC; 15A, 1/4HP, 250VAC; .5A, 125VDC; .25A, 250VDC
45
Terminal Types inches (mm) Mounting Holes
0.921±0.012
(23.4±0.3)
1.953
(49.6)
1.00±0.004
(25.4±0.1) 0.693
(17.6)
ø0.091
(ø2.3)
PT
OP
1.945±0.032
(49.4±0.8)
1.953
(49.6)
1.00±0.004
(25.4±0.1)
0.687
±
0.008
(17.6
±
0.2)
0.693
0.189
(4.8)
0.476
(12.1)
0.024
(0.6)
FP OP
t=
0.925
(23.5)
+
-
0.008
0.2)
+
-
(17.6
1.783±0.031
(45.3±0.8)
1.953
(49.6)
1.00±0.004
(25.4±0.1) 0.693±0.008
(17.6±0.2)
ø0.374x0.157
(ø9.5x4.0)
0.476
(12.1)
0.024
0.6)
FP OP
t=
N.O.
N.C.COM.
Screw Terminal Solder Terminal
COM. N.O. N.C.
0.787
(20.0)
0.787
(20.0)
1.937
(49.2)
0.36
(9.14)
3-M4 x 4.9
3-M2.5x4
1.586
(40.3)
0.25
(6.4)
0.314
(8.0)
1.937
(49.2)
U.S. Version
Metric Version
0.172
0.140
±
0.002
0.001
±
4.4±0.10
0.00
0.140 0.003
0.001
+
-
0.140 0.003
0.001
+
-
Specifications subject to change without notice.
NOTE: GP Series switches are available with screw or solder terminals in U.S. or metric sizes.
*For solder terminals, replace the “T” in the third position of the part number with an “S” (e.g., GPTCND11 becomes GPSC-
ND11).
†For metric mounting, replace the “1” in the seventh position with a “0” (e.g., GPTCND11 becomes GPTCND01).
Standard Part Numbers and Descriptions
Maximum Minimum Maximum Operating Minimum Max. Movement
Operating Release Pre-Travel Point Over-Travel Differential
Part Force Force inches Min./Max. inches inches Mounting Terminal
Dimensions inches (mm) Number (oz.) (oz.) (mm) inches (mm) (mm) (mm) Hole†Type*
GPTCNA11 12.3 4.0 0.016 0.610/0.642 0.005 0.002 U.S. Screw
(0.41) (15.49/16.31) (0.13) (0.05)
GPTBNA11 22.2 7.1 0.051 0.625/0.657 0.009 0.008 U.S. Screw
(1.30) (15.90/16.70) (0.25) (0.20)
GPTCLR11 10.5 1.7 0.157 0.654/0.717 0.062 0.051 U.S. Screw
(4.00) (16.60/18.20) (1.60) (1.30)
GPTBLR11 9.0 0.98 0.157 0.654/0.717 0.062 0.067 U.S. Screw
(4.00) (16.60/18.20) (1.60) (1.70)
GPTCRR11 10.6 1.8 0.157 1.094/1.157 0.062 0.051 U.S. Screw
(4.00) (27.80/29.40) (1.60) (1.30)
GPTBRR11 9.0 0.98 0.157 1.094/1.157 0.062 0.067 U.S. Screw
(4.00) (27.80/29.40) (1.60) (1.70)
46 Specifications subject to change without notice.
0.921±0.012
(23.4±0.3)
1.953
(49.6)
1.00±0.004
(25.4±0.1)
0.693±0.008
(17.6±0.2)
ø0.157
(ø4.0)
OP
PT
0.476
(12.1)
0.921±0.012
(23.4±0.3)
1.953
(49.6)
1.00±0.004
(25.4±0.1)
0.693±0.008
(17.6±0.2)
ø0.287
(ø7.3)
OP
PT
0.476
(12.1)
1.00±0.004
(25.4±0.1) 0.693±0.008
(17.6±0.2)
PT
OP
0.476
(12.1)
0.642
(16.3)
0.516
(13.1)
0.921±0.012
(23.4±0.3)
0.327
(8.3)
1.953
(49.6)
M (12xP1.0)
1.953
(49.6)
1.00±0.004
(25.4±0.1) 0.693±0.008
(17.6±0.2)
PT
OP
0.476
(12.1)
0.642
(16.3)
0.610
(15.5)
0.921±0.012
(23.4±0.3)
ø0.5x0.150
(ø12.7x3.8)
M(12xP1.0)
1.953
(49.6)
1.00±0.004
(25.4±0.1) 0.693±0.008
(17.6±0.2)
PT
OP
0.476
(12.1)
0.642
(16.3)
0.610
(15.5)
0.906±0.012
(23.0±0.3)
ø0.500x0.150
(ø12.7x3.8)
(M 12.0xP1.0)
Standard Part Numbers and Descriptions
Maximum Minimum Maximum Operating Minimum Max. Movement
Operating Release Pre-Travel Point Over-Travel Differential
Part Force Force inches Min./Max. inches inches Mounting Terminal
Dimensions inches (mm) Number (oz.) (oz.) (mm) inches (mm) (mm) (mm) Hole†Type*
GPTCND11 12.3 4.0 0.016 1.09/1.13 0.063 0.002 U.S. Screw
(0.41) (27.70/28.70) (1.60) (0.05)
GPTBND11 22.9 7.1 0.028 1.091/1.130 0.062 0.008 U.S. Screw
(0.70) (27.70/28.70) (1.60) (0.20)
GPTCNC11 12.3 4.0 0.106 0.826/0.866 0.062 0.002 U.S. Screw
(0.40) (21.00/22.00) (1.60) (0.05)
GPTBNC11 22.9 7.1 0.028 0.826/0.866 0.062 0.008 U.S. Screw
(0.70) (21.00/22.00) (1.60) (0.20)
GPTCNH11 12.3 4.0 0.016 0.826/0.890 0.217 0.002 U.S. Screw
(0.41) (20.98/22.60) (5.51) (0.05)
GPTBNH11 22.9 7.1 0.028 0.826/0.890 0.217 0.008 U.S. Screw
(0.70) (21.00/22.60) (5.50) (0.20)
GPTCRH11 12.3 4.0 0.016 1.268/1.362 0.140 0.002 U.S. Screw
(0.40) (32.20/34.60) (3.58) (0.05)
GPTBRH11 22.9 7.1 0.028 1.268/1.362 0.140 0.008 U.S. Screw
(0.70) (32.20/34.60) (3.56) (0.20)
GPTCRH12 12.3 4.0 0.160 1.268/1.362 0.140 0.002 U.S. Screw
(0.40) (32.20/34.60) (3.56) (0.05)
GPTBRH12 22.9 7.1 0.028 1.268/1.362 0.140 0.008 U.S. Screw
(0.70) (32.20/34.60) (3.56) (0.20)
NOTE: GP Series switches are available with screw or solder terminals in U.S. or metric sizes.
*For solder terminals, replace the “T” in the third position of the part number with an “S” (e.g., GPTCND11 becomes GPSC-
ND11).
†For metric mounting, replace the “1” in the seventh position with a “0” (e.g., GPTCND11 becomes GPTCND01).
47
Specifications subject to change without notice.
OPFP
0.795
(20.2)
1.024
(26.0)
0.677
(17.2)
R2.5
(R63.5)
1.953
(49.6)
1.00±0.004
(25.4±0.1) 0.476
(12.1)
0.193
(4.9)
0.039
(1.0)
t=
0.693±0.008
(17.6±0.2)
0.547
(13.9)
OPFP
0.795
(20.2)
1.024
(26.0)
0.677
(17.2)
R1.654
(R 42)
1.953
(49.6)
1.00±0.004
(25.4±0.1) 0.476
(12.1)
0.693±0.008
(17.6±0.2)
0.547
(13.9)
0.193
(4.9)
0.039
(1.0)
t=
OP
FP
1.024
(26.0)
ø0.374x0.157
(ø9.5x4.0)
R1.909
(R48.5)
0.693±0.008
(17.6±0.2)
0.795
(20.2)
0.677
(17.2)
1.953
(49.6)
1.00±0.004
(25.4±0.1) 0.476
(12.1)
0.547
(13.9)
OP
FP
0.693±0.008
(17.6±0.2)
0.547
(13.9)
0.795
(20.2)
1.024
(26.0) ø0.374x0.157
(ø9.5x4.0)
0.677
(17.2)
R 1.047
(R 26.6)
1.953
(49.6)
1.00±0.004
(25.4±0.1)
0.476
(12.1)
Operating direction
0.547
(13.9)
1.953
(49.6)
1.00±0.004
(25.4±0.1) 0.693±0.008
(17.6±0.2)
FP
OP
0.795
(20.2)
1.024
(26.0) ø0.374x0.157
(ø9.5x4.0)
0.677
(17.2)
R0.437
(R 11.1)
R 1.047
(R 31.9)
0.476
(12.1)
Standard Part Numbers and Descriptions
Maximum Minimum Maximum Operating Minimum Max. Movement
Operating Release Pre-Travel Point Over-Travel Differential
Part Force Force inches Min./Max. inches inches Mounting Terminal
Dimensions inches (mm) Number (oz.) (oz.) (mm) inches (mm) (mm) (mm) Hole†Type*
GPTCLS11 2.4 0.50 0.394 0.716/0.780 0.220 0.050 U.S. Screw
(10.00) (18.20/19.80) (5.61) (1.27)
GPTBLS11 2.8 0.50 0.394 0.716/0.780 0.220 0.007 U.S. Screw
(10.00) (18.20/19.80) (5.61) (0.20)
GPTCLS12 3.1 0.70 0.315 0.716/0.780 0.125 0.040 U.S. Screw
(8.00) (18.20/19.80) (3.20) (1.02)
GPTBLS12 4.2 1.4 0.315 0.716/0.780 0.125 0.040 U.S. Screw
(8.00) (18.20/19.80) (3.20) (1.02)
GPTCRS11 3.5 0.80 0.280 1.157/1.220 0.158 0.040 U.S. Screw
(7.10) (29.40/31.00) (4.00) (1.02)
GPTBRS11 4.2 0.80 0.280 1.157/1.220 0.158 0.040 U.S. Screw
(7.10) (29.40/31.00) (4.00) (1.02)
GPTCRM11 5.6 1.4 0.106 1.173/1.205 0.094 0.020 U.S. Screw
(2.70) (29.80/30.60) (2.40) (0.50)
GPTBRM11 6.4 1.5 0.106 1.173/1.205 0.094 0.020 U.S. Screw
(2.70) (29.80/30.60) (2.40) (0.50)
GPTCRG11 5.6 1.4 0.106 1.594/1.658 0.094 0.020 U.S. Screw
(2.70) (40.50/42.10) (2.40) (0.50)
GPTBRG11 6.3 1.4 0.106 1.594/1.658 0.094 0.020 U.S. Screw
(2.70) (40.50/42.10) (2.40) (0.50)
NOTE: GP Series switches are available with screw or solder terminals in U.S. or metric sizes.
*For solder terminals, replace the “T” in the third position of the part number with an “S” (e.g., GPTCND11 becomes GPSC-
ND11).
†For metric mounting, replace the “1” in the seventh position with a “0” (e.g., GPTCND11 becomes GPTCND01).
