Trane US · Electronic Components
B4524-3975-3
Circuit Breaker
Part NumberB4524-3975-3
ManufacturerTrane US
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-00-929-1719 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Circuit Protection TypeOVERCURRENT SINGLE LOCATION
Maximum Continuous Load Current Ra21.5 AMPERES AC SINGLE LOCATION
Main Contact Tripping Mechanism TyTRIP FREE
Maximum Interrupting Capacity Curr1000.0 AC SINGLE LOCATION
Operating Voltage Type And Rating115.0 AC SINGLE LOCATION
Trip Release CharacteristicTIME DELAY SINGLE LOCATION
Reset MethodMANUAL
Ultimate Trip Rating Of Continuous125.0 SINGLE LOCATION
Trip Release MethodMAGNETIC-HYDRAULIC SINGLE LOCATION
Center To Center Distance Between1.970 INCHES MAXIMUM
Switch Terminal TypeTAB, SOLDER LUG
Vendor Part Numbers4MC1-104-22
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 B4524-3975-3 available?
We can source B4524-3975-3 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 B4524-3975-3 by Trane US obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B4524-3975-3 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 B4524-3975-3?
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 B4524-3975-3?
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.