MIL-SPEC · Electronic Components
M55629/21NNNN
Circuit Breaker
Part NumberM55629/21NNNN
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-720-7429 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Terminal Type And Quantity4 SOLDER STUD
Trip Release CharacteristicTIME DELAY SINGLE LOCATION
Circuit Protection TypeSWITCH DISCONNECTOR SINGLE LOCATION
Trip Delay Time In Seconds Per Rat0.05 MINIMUM AT 200 PCT AND 10.0 MAXIMUM AT 200 PCT SINGLE LOCATION
Maximum Continuous Load Current Ra10.0 AMPERES DC SINGLE LOCATION
Pole Quantity2
Center To Center Distance Between38.48 MILLIMETERS MINIMUM AND 39.24 MILLIMETERS MAXIMUM
Body StyleMULTIPOLE-SINGLE ACTUATOR TYPE
Boss Height16.26 MILLIMETERS MINIMUM AND 19.43 MILLIMETERS MAXIMUM
Body Length50.42 MILLIMETERS MINIMUM AND 51.18 MILLIMETERS MAXIMUM
Body Width38.48 MILLIMETERS 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 M55629/21NNNN available?
We can source M55629/21NNNN 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 M55629/21NNNN by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M55629/21NNNN 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 M55629/21NNNN?
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 M55629/21NNNN?
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.