GE Industrial Solutions DC OEM Module For use with Gerapid DC Circuit Breaker - Manual (Page 10)

DC OEM MODULE FOR USE WITH GERAPID CIRCUIT BREAKERS
Chapter 4 Installing the Module
10 Design and specifications are subject to change without notice S47183Ee rev.01 2011-04-26
3-5 Gerapid Breakers
The GE Gerapid DC Circuit Breaker is a high speed, single pole breaker
used for protection of high power DC supply systems. The main features
of the Gerapid circuit breaker are:
 Modular construction, easy to inspect and maintain
 Non-flammable and non-toxic insulation materials
 High speed, current limiting short circuit characteristics
 Up to 24kA tripping threshold for OC release
 High speed remote impulse release for distant faults
 Shunt or zero voltage releases for opening operation
 Powerful closing solenoid enables quick closing operation
 Easy and safe remote and local control of the breaker,
 Wide variety of accessories, such as counter, indicators,
interlocks, manual handle, etc..
See Fig. 35-1 for overview of the breaker construction.
NOTE: See Appendix F for all ratings and see User Manual
S47183De for breaker details and accessories.
Four current ratings of Gerapid circuit breakers are available for
mounting on the trolley and used in the module. These circuit
breakers are UL Listed and type tested in accordance with
IEEE/ANSI C37.14-2000 Standards. Continuous current ratings
range from 2500 to 6000 ampere frame size. All Gerapid circuit
breakers of the same type and rating may be interchanged,
provided the breaker accessories have the same ratings.
Gerapid 2508 (See Fig. 35-2)

2500A frame size
 Standard 200kA peak interrupting current at 800VDC
 3700V power frequency withstand level
 Current limiting characteristic
 Tested for duty type a, b, c and d according to ANSI C37.14
 Trip-free capability according to ANSI C37.100
Gerapid 4008 (See Fig. 35-2)

4000A frame size
 Standard 200kA peak interrupting current at 800VDC
 3700V power frequency withstand level
 Current limiting characteristic
 Tested for duty type a, b, c and d according to ANSI C37.14
 Trip-free capability according to ANSI C37.100
Gerapid 5008 (See Fig. 35-3)

5000A frame size
 Standard 200kA peak interrupting current at 800VDC
 3700V power frequency withstand level
 Current limiting characteristic
 Tested for duty type a, b, c and d according to ANSI C37.14
 Trip-free capability according to ANSI C37.100
Gerapid 6008 (See Fig. 35-3)

6000A frame size
 Standard 200kA peak interrupting current at 800VDC
 3700V power frequency withstand level
 Current limiting characteristic
 Tested for duty type a, b, c and d according to ANSI C37.14
 Trip-free capability according to ANSI C37.100
Fig. 35-1 Gerapid circuit breaker construction
Fig. 35-2 Gerapid 2508 and 4008 circuit breakers
Fig. 35-3 Gerapid 5008 and 6008 circuit breakers