Sensata Technologies Maryland · Electronic Components
UPGN-666-1-42-253M
Circuit Breaker
Part NumberUPGN-666-1-42-253M
ManufacturerSensata Technologies Maryland
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-304-0364 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Mounting Surface To Terminal End D2.232 INCHES MAXIMUM
Center To Center Distance Between1.530 INCHES NOMINAL
Mounting Facility Type And Quantit6 THREADED STUD(S)
Pole Quantity3
Reset MethodMANUAL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Ultimate Trip Time Per Pole In Sec70.000 MAXIMUM ALL LOCATIONS
Internal Trip Release ConfiguratioSERIES TRIP ALL LOCATIONS
Bushing Length0.625 INCHES NOMINAL
Main Contact Tripping Mechanism TyTRIP FREE
Body Length2.000 INCHES NOMINAL
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 UPGN-666-1-42-253M available?
We can source UPGN-666-1-42-253M 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 UPGN-666-1-42-253M by Sensata Technologies Maryland obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If UPGN-666-1-42-253M 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 UPGN-666-1-42-253M?
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 UPGN-666-1-42-253M?
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.