Bunn-O-Matic · Electronic Components
1977
Relay, Electromagnetic
Part Number1977
ManufacturerBunn-O-Matic
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-245-1970 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Time Delay0.015 SECONDS MAXIMUM FIXED OPERATE TIME
Fragility FactorMODERATELY RUGGED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Overall Width1.468 INCHES MAXIMUM
Terminal Type And Quantity8 TAB, SOLDER LUG ALL FUNCTIONS
Arc Quenching MethodAIR
Overall Length1.843 INCHES MAXIMUM
Frequency In Hertz50.0 MINIMUM AND 60.0 MAXIMUM
Thread DirectionRIGHT-HAND SINGLE MOUNTING FACILITY
Winding Quantity1
Maximum Operating Temp65.0 CELSIUS
Overall Height2.780 INCHES MINIMUM AND 2.840 INCHES MAXIMUM
Reliability IndicatorNOT ESTABLISHED
Winding Operating Voltage353.50 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Current5000.0 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Nominal Thread Size0.138 INCHES SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Vendor Part Numbers732569-3
ESD/EMICode A — ESD/EMI sensitive item
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 1977 available?
We can source 1977 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 1977 by Bunn-O-Matic obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1977 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 1977?
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 1977?
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.