Eaton · Electronic Components
KDB3125
TYPE KDB BREAKER 3P 125A 600VAC MAX 25KAIC @ 600V
Part NumberKDB3125
ManufacturerEaton
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-275-1953 (NSN)
Federal Item NameCIRCUIT BREAKER
MaterialPLASTIC CASE
Terminals6 COMPRESSION
Overall Length12.445 INCHES NOMINAL
Overall Width5.490 INCHES NOMINAL
Overall Height4.313 INCHES NOMINAL
Body StyleRECTANGULAR DIMENSIONAL ENVELOPE
Features ProvidedADJUSTABLE TRIP RELEASE
Manual Actuator Type And Quantity1 TOGGLE
Fragility FactorMODERATELY RUGGED
Storage TypeGENERAL PURPOSE WAREHOUSE
Federal Supply Class5925 — Circuit Breakers
Terminal Type And Quantity6 COMPRESSION
Pole Quantity3
Mounting Facility Type And Quantit6 UNTHREADED HOLE(S)
Arc Quenching MethodAIR
Inclosure Protection Type For WhicDUSTPROOF
Trip Release Ambient Temp Rating40.0 CELSIUS NOMINAL ALL LOCATIONS
Actuator FunctionTRIP-RESET
Cancelled NSN5925-00-888-4255 (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 KDB3125 available?
We can source KDB3125 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 KDB3125 by Eaton obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If KDB3125 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 KDB3125?
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 KDB3125?
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.