Eaton Corporation · Electronic Components
MC4S120AC
Relay, Electromagnetic
Part NumberMC4S120AC
ManufacturerEaton Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-379-3698 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Winding Quantity1
Duty TypeCONTINUOUS
Precious Material And LocationTERMINALS SILVER AND TERMINAL SURFACES GOLD
Main Contact Maximum Voltage Ratin120.0 AC
Nominal Operating Current Rating A3.0 AMPERES AC SINGLE WINDING
Terminal Type And Quantity14 WIRE LOOP ALL FUNCTIONS
Main Contact Load Current Rating A1.5 AMPERES AC RESISTIVE LOAD
Coil Quantity1
Frequency In Hertz50.0 NOMINAL OR 60.0 NOMINAL
Precious MaterialGOLD AND SILVER
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 MC4S120AC available?
We can source MC4S120AC 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 MC4S120AC by Eaton Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MC4S120AC 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 MC4S120AC?
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 MC4S120AC?
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.