● 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
L3Harris Maritime Power & Energy Solutions, Inc.  · Electronic Components

FJ3B125

Circuit Breaker

Part NumberFJ3B125
ManufacturerL3Harris Maritime Power & Energy Solutions, Inc.
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Maximum Interrupting Capacity Curr14000.0 AC ALL LOCATIONS
Maximum Continuous Load Current Ra125.0 AMPERES AC ALL LOCATIONS
Reset MethodMANUAL
Operating Voltage Type And Rating600.0 AC ALL LOCATIONS
Trip Release CharacteristicINSTANTANEOUS ALL LOCATIONS
Ultimate Trip Rating Of Continuous125.0 ALL LOCATIONS
Manual Actuator Type And Quantity1 TOGGLE
Center To Center Distance Between1.500 INCHES NOMINAL
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S)
Mounting Surface To Terminal End D4.062 INCHES NOMINAL
Pole Quantity3
Vendor Part NumbersET88278
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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 FJ3B125 available?
We can source FJ3B125 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 FJ3B125 by L3Harris Maritime Power & Energy Solutions, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If FJ3B125 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 FJ3B125?
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 FJ3B125?
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.