Sensata Technologies Maryland, Inc. · Electronic Components
AP12-R-87057-018
Circuit Breaker
Part NumberAP12-R-87057-018
ManufacturerSensata Technologies Maryland, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-396-1123 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Main Contact Tripping Mechanism TyTRIP FREE
Reset MethodMANUAL
Actuator Position DesignationBETWEEN POLE ONE AND TWO
Operating Voltage Type And Rating240.0 AC AND 50.0 DC ALL LOCATIONS
Maximum Interrupting Capacity Curr300.0 AC AND 500.0 DC ALL LOCATIONS
Center To Center Distance Between0.625 INCHES NOMINAL
Mounting Surface To Terminal End D1.780 INCHES MAXIMUM
Mounting Facility Type And Quantit1 THREADED BUSHING WITH PANEL SEAL
Switch Contact ArrangementSINGLE POLE, DOUBLE THROW
Pole Quantity2
Switch Location And Position DesigINTERNAL AT POLE ONE
Vendor Part Numbers87057-018
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 AP12-R-87057-018 available?
We can source AP12-R-87057-018 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 AP12-R-87057-018 by Sensata Technologies Maryland, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AP12-R-87057-018 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 AP12-R-87057-018?
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 AP12-R-87057-018?
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.