Siemens Energy and Automation Inc. ITE Circuit Protection Div · Electronic Components
HED43B125NAV
Circuit Breaker
Part NumberHED43B125NAV
ManufacturerSiemens Energy and Automation Inc. ITE Circuit Protection Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-602-1243 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Operating Voltage Type And Rating480.0 AC ALL LOCATIONS
Maximum Continuous Load Current Ra125.0 AMPERES AC ALL LOCATIONS
Pole Quantity3
Overall Height6.35 INCHES NOMINAL
Overall Width3.0 INCHES NOMINAL
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 HED43B125NAV available?
We can source HED43B125NAV 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 HED43B125NAV by Siemens Energy and Automation Inc. ITE Circuit Protection Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If HED43B125NAV 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 HED43B125NAV?
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 HED43B125NAV?
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.