Ross Engineering Corporation · Electronic Components
800543
Relay, Electromagnetic
Part Number800543
ManufacturerRoss Engineering Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-262-4146 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Center To Center Distance Between2.875 INCHES NOMINAL SINGLE MOUNTING FACILITY
Unthreaded Mounting Hole Diameter0.203 INCHES NOMINAL SINGLE MOUNTING FACILITY
Overall Width3.370 INCHES NOMINAL
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Auxiliary Contact Load Current Rat10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
Duty TypeCONTINUOUS
Overall Height7.060 INCHES NOMINAL
Auxiliary Contact Maximum Voltage250.0 AC AND 28.0 DC
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Overall Length4.210 INCHES MAXIMUM
Frequency In Hertz50.0 MINIMUM AND 440.0 MAXIMUM
Vendor Part Numbers2903482-3
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 800543 available?
We can source 800543 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 800543 by Ross Engineering Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 800543 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 800543?
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 800543?
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.