Chromalox · Electronic Components
AR2539EP
Switch, Thermostatic
Part NumberAR2539EP
ManufacturerChromalox
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-532-8012 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Mounting MethodFLUSH AND UNTHREADED HOLE(S)
Bulb Length11.250 INCHES NOMINAL
Overall Height3.312 INCHES NOMINAL
Contact Load Current Rating3.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
Style DesignatorRECTANGULAR
Contact AdjustabilityDEACTUATION POINT ADJUSTABLE AND ACTUATION POINT ADJUSTABLE
Terminal TypeSCREW
Longest Vertical Distance Between3.875 INCHES NOMINAL
Nonpile Up Contact Arrangement2 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Contact Voltage Rating In Volts120.0 AC AT SEA LEVEL SECOND VOLTAGE
Hazardous Locations EnvironmentalDUSTPROOF
Vendor Part Numbers9863-104PC118A
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 AR2539EP available?
We can source AR2539EP 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 AR2539EP by Chromalox obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AR2539EP 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 AR2539EP?
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 AR2539EP?
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.