Guardian Electric Manufacturing · Electronic Components
B5B
Relay, Electromagnetic
Part NumberB5B
ManufacturerGuardian Electric Manufacturing
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-259-5358 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Winding Quantity1
Center To Center Distance Between1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY
Overall Width1.750 INCHES NOMINAL
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Overall Height2.500 INCHES NOMINAL
Nonpile Up Main Contact Arrangemen1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Main Contact Load Current Rating A50.0 AMPERES DC RESISTIVE LOAD
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Operating Voltage Rating And Type24.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Coil Quantity1
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 B5B available?
We can source B5B 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 B5B by Guardian Electric Manufacturing obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B5B 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 B5B?
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 B5B?
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.