Eaton · Electronic Components
BR390
Type BR Breaker 90A/3 Pole 240V 10K
Part NumberBR390
ManufacturerEaton
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-174-5466 (NSN)
Federal Item NameTRANSFORMER,POWER
Terminals5 WIRE LEAD
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Overall Length1.626 INCHES MAXIMUM
Body Width0.830 INCHES NOMINAL
Inclosure TypeFULLY INCLOSED
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Length1.050 INCHES NOMINAL
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Height1.125 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Federal Supply Class5950 — Coils And Transformers
Terminal Type And Quantity5 WIRE LEAD
Distance Between Mounting Facility1.406 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Vendor Part NumbersCS9204
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 BR390 available?
We can source BR390 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 BR390 by Eaton obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If BR390 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 BR390?
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 BR390?
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.