Westinghouse Electric · Electronic Components
1AQ4120
Relay, Electromagnetic
Part Number1AQ4120
ManufacturerWestinghouse Electric
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-252-0991 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Winding Quantity2
Overall Height5.280 INCHES NOMINAL
Coil Quantity1
Auxiliary Contact Maximum Voltage125.0 DC
Operating Voltage Rating And Type250.0 VOLTS DC 25 DEG CELSIUS ALL WINDINGS
Nonpile Up Main Contact Arrangemen2 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Duty TypeCONTINUOUS
Main Contact Maximum Voltage Ratin125.0 DC
Time Delay0.50 SECONDS MINIMUM AND 3.50 SECONDS MAXIMUM ADJUSTABLE RELEASE TIME
Main Contact Load Current Rating A150.0 AMPERES DC RESISTIVE LOAD
Nonpile Up Auxiliary Contact Arran1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
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 1AQ4120 available?
We can source 1AQ4120 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 1AQ4120 by Westinghouse Electric obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1AQ4120 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 1AQ4120?
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 1AQ4120?
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.