Westinghouse Electric · Electronic Components
1531787
Circuit Breaker
Part Number1531787
ManufacturerWestinghouse Electric
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-00-201-9663 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Main Contact Tripping Mechanism TyTRIP FREE
Operating Voltage Type And Rating600.0 AC ALL LOCATIONS
Trip Release MethodMAGNETIC-HYDRAULIC ALL LOCATIONS
Reset MethodMANUAL
Internal Trip Release ConfiguratioSERIES TRIP ALL LOCATIONS
Pole Quantity3
Actuator FunctionTRIP-RESET
Unthreaded Mounting Hole Diameter0.281 INCHES NOMINAL
Trip Release Ambient Temp Rating25.0 CELSIUS NOMINAL ALL LOCATIONS
Trip Release CharacteristicINSTANTANEOUS AND TIME DELAY ALL LOCATIONS
Trip Delay Time In Seconds Per Rat52.000 MINIMUM AT 200 PCT AND 135.000 MAXIMUM AT 200 PCT ALL LOCATIONS
Vendor Part Numbers1222037, AB1222-017
Cancelled NSN5925-00-187-8858 (cancelled)
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is 1531787 available?
We can source 1531787 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is 1531787 by Westinghouse Electric obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1531787 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like 1531787?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for 1531787?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.