Weg Electric · Electronic Components
UMBW-4C2-2
Circuit Breaker
Part NumberUMBW-4C2-2
ManufacturerWeg Electric
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-678-8239 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Maximum Interrupting Capacity Curr10000.0 AC AND 10000.0 DC ALL LOCATIONS
Trip Release CharacteristicINSTANTANEOUS ALL LOCATIONS
Trip Release MethodTHERMAL-MAGNETIC ALL LOCATIONS
Operating Voltage Type And Rating277.0 AC AND 480.0 AC AND 125.0 DC ALL LOCATIONS
Center To Center Distance Between17.6 MILLIMETERS NOMINAL
Boss Height5.6 MILLIMETERS NOMINAL
Body Height60.1 MILLIMETERS NOMINAL
Body Width52.9 MILLIMETERS NOMINAL
Pole Quantity2
Mounting Facility Type And Quantit1 DIN RAIL
Actuator FunctionTRIP-RESET
ESD/EMICode A — ESD/EMI sensitive item
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 UMBW-4C2-2 available?
We can source UMBW-4C2-2 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 UMBW-4C2-2 by Weg Electric obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If UMBW-4C2-2 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 UMBW-4C2-2?
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 UMBW-4C2-2?
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.