L3Harris Maritime Power & Energy Solutions, Inc. · Electronic Components
ET4037
Circuit Breaker
Part NumberET4037
ManufacturerL3Harris Maritime Power & Energy Solutions, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-00-283-1410 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Trip Release MethodTHERMAL-MAGNETIC ALL LOCATIONS
Body Height4.844 INCHES NOMINAL
Trip Release CharacteristicINSTANTANEOUS AND TIME DELAY ALL LOCATIONS
Ultimate Trip Rating Of Continuous125.0 ALL LOCATIONS
Maximum Continuous Load Current Ra100.0 AMPERES AC ALL LOCATIONS
Main Contact Tripping Mechanism TyTRIP FREE
Operating Voltage Type And Rating600.0 AC ALL LOCATIONS
Manual Actuator Type And Quantity1 TOGGLE
Center To Center Distance Between8.750 INCHES NOMINAL
Pole Quantity3
Distance Between Centerlines Of Mo3.000 INCHES NOMINAL
Cancelled NSN5925-00-549-6071 (cancelled)
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 ET4037 available?
We can source ET4037 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 ET4037 by L3Harris Maritime Power & Energy Solutions, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If ET4037 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 ET4037?
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 ET4037?
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.