Westinghouse Electric Corp. · Electronic Components
457D446G18
Tripper, Circuit Breaker
Part Number457D446G18
ManufacturerWestinghouse Electric Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-00-803-5491 (NSN)
Federal Item NameTRIPPER,CIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Storage TypeGENERAL PURPOSE WAREHOUSE
Overall Width8.875 INCHES NOMINAL
Body StyleRECTANGULAR DIMENSIONAL ENVELOPE
Frequency In Hertz400.0 ALL LOCATIONS
Maximum Continuous Load Current Ra125.0 AMPERES AC ALL LOCATIONS
Ultimate Trip Rating Of Continuous140.0 ALL LOCATIONS
Manual Actuator Type And Quantity1 TOGGLE
Adjustable Trip Setting Current Ra+910.0 TO 1560.0 AC ALL LOCATIONS
Trip Delay Time In Seconds Per Rat20.000 MINIMUM AT 600 PCT AND 32.000 MAXIMUM AT 600 PCT ALL LOCATIONS
Actuator Position DesignationAT POLE TWO
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S)
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 457D446G18 available?
We can source 457D446G18 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 457D446G18 by Westinghouse Electric Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 457D446G18 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 457D446G18?
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 457D446G18?
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.