Siemens Energy & Automation · Electronic Components
3TH8040-0AR1
Relay, Electromagnetic
Part Number3TH8040-0AR1
ManufacturerSiemens Energy & Automation
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-01-299-2798 (NSN)
Federal Item NameRELAY,ELECTROMAGNETIC
Federal Supply Class5945 — Relays and Solenoids
Overall Length75.0 MILLIMETERS NOMINAL
Winding Quantity1
Operating Voltage Rating And Type440.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Overall Height80.0 MILLIMETERS NOMINAL
Duty TypeCONTINUOUS
Overall Width45.0 MILLIMETERS NOMINAL
Terminal Type And Quantity10 SCREW ALL FUNCTIONS
Mounting Facility Type And Quantit2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Coil Quantity1
Center To Center Distance Between60.0 MILLIMETERS NOMINAL SINGLE MOUNTING FACILITY
Unthreaded Mounting Hole Diameter4.8 MILLIMETERS NOMINAL SINGLE MOUNTING FACILITY
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 3TH8040-0AR1 available?
We can source 3TH8040-0AR1 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 3TH8040-0AR1 by Siemens Energy & Automation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3TH8040-0AR1 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 3TH8040-0AR1?
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 3TH8040-0AR1?
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.