Eaton Corporation · Electronic Components
522901021
Circuit Breaker
Part Number522901021
ManufacturerEaton Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-194-1538 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Operating Voltage Type And Rating600.0 AC AND 250.0 DC ALL LOCATIONS
Ultimate Trip Rating Of Continuous150.0 ALL LOCATIONS
Trip Release CharacteristicINSTANTANEOUS AND TIME DELAY ALL LOCATIONS
Reset MethodMANUAL
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Overall Width9.000 INCHES NOMINAL
Trip Release Ambient Temp Rating77.0 FAHRENHEIT NOMINAL ALL LOCATIONS
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S)
Unthreaded Mounting Hole Diameter0.500 INCHES NOMINAL
Pole Quantity3
Actuator FunctionTRIP-RESET
Vendor Part NumbersHP3T140
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 522901021 available?
We can source 522901021 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 522901021 by Eaton Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 522901021 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 522901021?
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 522901021?
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.