|Cutler Hammer / Westinghouse Molded Case Circuit Breakers|
|Circuit Breakers||Cutler Hammer Parts||Westinghouse Parts|
Molded Case Circuit Breaker Part Numbers
Obsolete & Current Production
Cutler Hammer/ Westinghouse Circuit Breakers
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Included in the world's largest inventory of hard to find molded case circuit breakers, Southland Electrical offers the following Westinghouse/Cutler Hammer molded case circuit breaker series:
You may find a listing of the circuit breaker part numbers to the left, with additional part listings at the bottom of the page.
Cutler Hammer / Westinghouse Circuit Breakers are now available
Current Limit-R - Current Limiting Circuit Breakers, Non-Fused Type
Current Limit-R circuit breakers are designed to protect standard Westinghouse circuit breakers with interrupting ratings as low as 10 kA rms symmetrical on systems capable of delivering fault currents as high as 200kA rms symmetrical. In such a system, the Current Limit-R main breaker and standard Westinghouse branch breaker closest to the fault operate together to limit the amount of let-through fault current.
These circuit breakers utilize the Westinghouse patented slot motor concept to provide higher interrupting capacities without using fuses. Current Limit-R circuit breakers are UL listed, meet the NEC definition for a current limiting device, and are the same size as the comparable Tri-Pac circuit breakers.
Tri-Pac - Current Limiting Circuit Breakers, Fused Type
Tri-Pac thermal magnetic circuit breakers provide higher interrupting capacities by utilizing integral current limiting fuses. These circuit breakers can be used in commercial and industrial distribution systems where fault current may reach as high as 200 kA rms symmetrical.
Compact Tri-Pac circuit breakers are rated from 15 to 1600 amperes and can be applied as main breakers...and as protective breakers for feeder and branch circuits and other connected apparatus.
Overcurrents and low level faults are cleared by thermal action; normal faults cleared by magnetic action; and abnormal faults above an estimated value are cleared by the current limiting fuses.
Series C HMCP - Motor Circuit Protectors
HMCP motor circuit protectors provide the industry's most effective protection against low level faults. A 15 ampere HMCP will open all phases and clear a fault less than one cycle - before the fault produces an arching condition that can cascade and cause potentially serious motor damage.
These devices, available in ratings of 150 to 600 amperes, incorporate several Series C Molded Case Circuit Breaker features including quick make - quick break action, dead front safety, trip indication, and proven reliability.
Protection settings are quickly and easily selected by the user and the HMCP will provide protective interruption of any current above the selected setting.
Navy Breakers - Navy Circuit Breakers
These manually operated thermal magnetic circuit breakers are rated from 5 to 1,600 amperes with interrupting ratings from 1,500 to 150,000 amperes. They provide both overload and circuit protection for equipment on the circuit, including motors, generators, and starters.
Navy circuit breakers are designed to MIL-C-17361 and meet the requirements of Class HI-shock, MIL-S-901 and MIL-STD-167-1 vibrations. The cases are made of special MIL-M-14 gray molded plastic materials making the breakers suitable for application in many harsh environments. The electronic trip unit adjustable settings can be easily changed at the operator level to meet the shipboard system trip requirements.
The trip unit adjustable settings can be easily set in the field to meet shipboard system trip requirements.
Mounting blocks or bases are available for switchboard plug-in applications.
Mining Service Circuit Breakers
The full line of mining service circuit breakers includes Series C, Standard Mining Service, and solid-state Seltronic line, and the 1,000-volt series. They are available in frame sizes from 150 to 1,200 amperes.
Series C Mining Service Circuit Breakers provide higher interrupting capacity in smaller sizes, interchangeable trip units within the same frame, an electronic trip unit, plug-in accessories, and precise instantaneous trip settings. Each series C frame size offers a choice of several interrupting capacities: up to 100 kA at 240Vac, 65 kA at 480 Vac, 25 kA at 600 Vac, and 22 kA at 250 Vdc.
Series C Cutler/Westinghouse: ED, EDC, EDH, EHC, EHD, FDB, FD, HFD, FDC, JDB, JD, HJD, JDC, DK, DB, KD, HKD, DC, HKDDC, CKD, CHKD, LDB. LD, CLD, HLD, CHLD, LDC, CLDC, MD, MDC, ND. HND, NDC, CND, CHND, CNDC, RD, RDCCRD, HMCP, DA, DK, E, EA, EB, KA, MARK75, HFB, FBGB, GHB, GHBS, GC, GHC, CA, CAH, HCA.
Westinghouse: G, EB, EHB, FB, JA, KA, MARK 75, HKAJB, KB, MARK 75, HKB, LB, LBB, MARK 75, HLB, DA, LA, LAB, MARK 75, HLA, LA MARK 75, HLAMA MARK 75, HMA, NB, HNB, PB, LC, LCC, HLC, HLCCMC, MCC, HMC, NC, QCC SELECTRONIC, HNC, SELECTRONIC, PC, PCC, PCG, FCL, LCL, CURRENT, LIMIT-RFB, TRIPAC, LA TRIPAC, NB TRIPAC PB TRIPAC.
Quicklag: HQP, QPHW, QHPX, QHPW, BAB, GB, GHB, QBHW, HBAX, HBAW, QC, QCHW, QHCX, QHCW QBGF, QCGF.
Replacement Breakers: RE, REA, REH, RFA, RHFA, RF, RHF, RJ, RK, RHK, RKL, RHKL, RLM, RHLM.
We also stock Cutler Hammer old style (beige handle stab in and grey bolt in CH breakers with and without the full notch.)
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