● 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
Simmonds Precision Products  · Electronic Components

044643

Circuit Breaker

Part Number044643
ManufacturerSimmonds Precision Products
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Switch Current Rating And Type In0.5 AC AND 0.5 DC
Frequency In Hertz400.0 ALL LOCATIONS
Nominal Thread Size0.375 INCHES
Switch Terminal TypeTAB, SOLDER LUG
Arc Quenching MethodMAGNETIC BLOWOUT
Nonturn Device Diameter0.140 INCHES NOMINAL
Special Handling FeatureMAGNETIC
Mounting Facility Type And Quantit1 THREADED BUSHING WITH PANEL SEAL
Center To Center Distance Between0.875 INCHES NOMINAL
Mounting Surface To Terminal End D1.780 INCHES MAXIMUM
Pole Quantity2
Vendor Part NumbersAP-12-1R-5691-1
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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 044643 available?
We can source 044643 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 044643 by Simmonds Precision Products obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 044643 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 044643?
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 044643?
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.