Nault Robert · Electronic Components
TDR4550
Relay, Thermal
Part NumberTDR4550
ManufacturerNault Robert
AvailabilityAvailable to order — request a quote
Specifications
NSN5945-00-615-2477 (NSN)
Federal Item NameRELAY,THERMAL
Federal Supply Class5945 — Relays and Solenoids
Environmental ProtectionHERMETIC
Heater Power Rating In Watts5.0
Overall Length2.500 INCHES NOMINAL
Overall Diameter1.286 INCHES NOMINAL
Terminal Type And Quantity8 PIN
Delay Time In Seconds75.0 FIXED OPERATE NOMINAL
Contact Maximum Voltage Rating In230.0 AC
Heater Voltage Rating In Volts26.5
Contact Maximum Current Rating In3.0 AC
Contact ArrangementSINGLE POLE, DOUBLE THROW
Mounting Facility Type And Quantit1 OCTAL BASE PLUG-IN
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 TDR4550 available?
We can source TDR4550 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 TDR4550 by Nault Robert obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If TDR4550 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 TDR4550?
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 TDR4550?
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.