Guardian Electric Manufacturing · Electronic Components
IR-645U-4C-12WIRE
Relay, Electromagnetic
Part NumberIR-645U-4C-12WIRE
ManufacturerGuardian Electric Manufacturing
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-040-0052 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Nominal Thread Size0.164 INCHES SINGLE MOUNTING FACILITY
Mounting Facility Type And Quantit1 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Nonpile Up Main Contact Arrangemen4 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Thread Class2B SINGLE MOUNTING FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Overall Width1.094 INCHES MAXIMUM
Overall Length1.875 INCHES MAXIMUM
Main Contact Load Current Rating A10.0 AMPERES DC RESISTIVE LOAD
Winding Quantity1
Duty TypeCONTINUOUS
Precious MaterialSILVER
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 IR-645U-4C-12WIRE available?
We can source IR-645U-4C-12WIRE 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 IR-645U-4C-12WIRE by Guardian Electric Manufacturing obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If IR-645U-4C-12WIRE 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 IR-645U-4C-12WIRE?
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 IR-645U-4C-12WIRE?
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.