Siemens Energy And Automation Inc. Ite Circuit Protection Div · Electronic Components
E43M040
Circuit Breaker
Part NumberE43M040
ManufacturerSiemens Energy And Automation Inc. Ite Circuit Protection Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-247-5949 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Pole Quantity3
Center To Center Distance Between1.125 INCHES NOMINAL
Mounting Facility Type And Quantit4 UNTHREADED HOLE(S)
Unthreaded Mounting Hole Diameter0.187 INCHES NOMINAL
Distance Between Centerlines Of Mo4.000 INCHES NOMINAL
Cubic Measure0.040 CUBIC FEET
Boss Height0.250 INCHES NOMINAL
Maximum Interrupting Capacity Curr40.0 AC ALL LOCATIONS
Operating Voltage Type And Rating600.0 AC ALL LOCATIONS
Ultimate Trip Rating Of Continuous125.0 ALL LOCATIONS
Trip Release CharacteristicINSTANTANEOUS ALL LOCATIONS
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 E43M040 available?
We can source E43M040 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 E43M040 by Siemens Energy And Automation Inc. Ite Circuit Protection Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If E43M040 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 E43M040?
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 E43M040?
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.