Ellis & Watts International · Electronic Components
SK4-5
Relay, Electromagnetic
Part NumberSK4-5
ManufacturerEllis & Watts International
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-009-6790 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Overall Width2.500 INCHES NOMINAL
Main Contact Load Current Rating A50.0 AMPERES AC RESISTIVE LOAD
Coil Quantity1
Nonpile Up Main Contact Arrangemen3 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Duty TypeCONTINUOUS
Winding Quantity1
Mounting Facility Type And Quantit4 SLOTTED HOLE SINGLE MOUNTING FACILITY
Operating Voltage Rating And Type110.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Center To Center Distance Between1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY
Frequency In Hertz50.0 MINIMUM AND 60.0 MAXIMUM
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 SK4-5 available?
We can source SK4-5 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 SK4-5 by Ellis & Watts International obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SK4-5 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 SK4-5?
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 SK4-5?
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.