● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
Ellis & Watts International  · Electronic Components

9B4-1

Relay, Electromagnetic

Part Number9B4-1
ManufacturerEllis & Watts International
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Nonpile Up Main Contact Arrangemen2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Frequency In Hertz60.0 NOMINAL
Main Contact Load Current Rating A50.0 AMPERES AC RESISTIVE LOAD
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Winding Quantity1
Coil Quantity1
Mounting Slot Width0.188 INCHES NOMINAL SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Ratin600.0 AC
Operating Voltage Rating And Type110.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Mounting Facility Type And Quantit3 SLOTTED HOLE SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
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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

Frequently asked

Is 9B4-1 available?
We can source 9B4-1 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 9B4-1 by Ellis & Watts International obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 9B4-1 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 9B4-1?
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 9B4-1?
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.