GD2020 Thermal-Magnetic Circuit Breakers
with Non-Interchangeable Trip Units

Number of Poles	Amperes	Volts		Type of Trip(1)	Federal Specification W-C-375b	Terminals
		AC	DC
2	20	480	125/250	Non- Interchangeable (N.I.T.U.)	13b	Line/Load

GD Quick Reference Guide

Circuit Breaker Type	Continuous Ampere Rating at 40°C	No. of Poles	UL Listed Interrupting Ratings (rms Symmetrical Amperes)
			AC (kA)						DC (kA)(2)
			120	120/240	240	277	480	600	125	250
GHB	15–100(3)	1	65	—	—	—	—	—	14	—
GHB	15–100	2, 3	—	—	65	—	—	—	—	14
GHB	15–100	1	—	—	—	14	—	—	14	—
GHB	15–100	2, 3	—	—	—	14	14	—	—	14
HGHB	15–30	1	65	—	—	25	—	—	14	—
GHQ	15–20	1	65	—	—	14	—	—	—	—
GHBS	15–30	1, 2	65	65	—	14	—	—	—	—
GBHS	15–20	1, 2	—	—	—	—	—	10	—	—
GDB	15–50	2	—	—	—	—	14	—	—	10
GDB	15–100	3	—	—	—	—	14	—	—	10
GD	15–50	2	—	—	65	—	14	—	—	10
GD	15–100	3	—	—	65	—	22	—	—	10
GHC	15–100	1	65	—	—	—	—	—	14	—
GHC	15–100	2, 3	—	—	65	—	—	—	—	1
GHC	15–100		—	—	—	14	—	—	14	—
GHC	15–100	2, 3	—	—	—	14	14	—	—	14
HGHC	15–30	1	65	—	—	25	—	—	14	—

NOTES:
(1) N.I.T.U. is non-interchangeable trip unit and I.T.U. is interchangeable trip unit.
(2) Two-pole circuit breaker, or two poles of three-pole circuit breaker at 250 Vdc.
(3) Not defined in W-C-375b.
(4) Current limiting.
(5) Check with Eaton for availability.

GD2020 Dimensions