Automation Products Group · Electronic Components
1A2B4
Relay, Electromagnetic
Part Number1A2B4
ManufacturerAutomation Products Group
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-457-7972 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Coil Quantity1
Nonpile Up Main Contact Arrangemen2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Center To Center Distance Between2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY
Unthreaded Mounting Hole Diameter0.173 INCHES NOMINAL SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Main Contact Maximum Voltage Ratin115.0 AC AND 28.0 DC
Overall Height1.620 INCHES NOMINAL
Overall Width2.370 INCHES NOMINAL
Operating Voltage Rating And Type115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Main Contact Load Current Rating A10.0 AMPERES AC AND 5.0 AMPERES DC RESISTIVE LOAD
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 1A2B4 available?
We can source 1A2B4 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 1A2B4 by Automation Products Group obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1A2B4 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 1A2B4?
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 1A2B4?
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.