Chromalox · Electronic Components
4239-90003
Controller, Motor
Part Number4239-90003
ManufacturerChromalox
AvailabilityAvailable to order — request a quote
Specifications
NSN6110-01-169-1854 (NSN)
Federal Item NameCONTROLLER,MOTOR
Federal Supply Class6110 — Electrical Control Equipment
Overall Length37.250 INCHES NOMINAL
Overall Width24.000 INCHES NOMINAL
Frequency Rating60.0 HERTZ NOMINAL
Size Designator12
National Electrical ManufacturersDESIGNED PER NEMA STD
PhaseTHREE
Overall Height8.000 INCHES NOMINAL
Ac Voltage Rating440.0 VOLTS NOMINAL
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 4239-90003 available?
We can source 4239-90003 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 4239-90003 by Chromalox obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4239-90003 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 4239-90003?
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 4239-90003?
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.