Caterpillar · Electronic Components
3R8920
Circuit Breaker
Part Number3R8920
ManufacturerCaterpillar
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-157-4604 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Overall Length50.8 MILLIMETERS NOMINAL
Mounting Surface To Terminal End D32.5 MILLIMETERS NOMINAL
Pole Quantity1
Storage TypeGENERAL PURPOSE WAREHOUSE
Center To Center Distance Between16.3 MILLIMETERS NOMINAL
Mounting Facility Type And Quantit2 THREADED HOLE(S)
Distance Between Centerlines Of Mo39.98 MILLIMETERS NOMINAL
Thread Quantity Per Inch32
MaterialPLASTIC CASE
Internal Trip Release ConfiguratioSERIES TRIP SINGLE LOCATION
Reset MethodAUTOMATIC
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 3R8920 available?
We can source 3R8920 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 3R8920 by Caterpillar obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3R8920 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 3R8920?
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 3R8920?
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.