Dresser, LLC · Electronic Components
490790
Circuit Breaker
Part Number490790
ManufacturerDresser, LLC
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-00-884-0672 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Main Contact Tripping Mechanism TyTRIP FREE
Internal Trip Release ConfiguratioSERIES TRIP SINGLE LOCATION
Trip Release CharacteristicTIME DELAY SINGLE LOCATION
Trip Release MethodMAGNETIC-HYDRAULIC SINGLE LOCATION
Circuit Protection TypeOVERCURRENT SINGLE LOCATION
Ultimate Trip Rating Of Continuous125.0 SINGLE LOCATION
Maximum Continuous Load Current Ra1.0 AMPERES AC SINGLE LOCATION
Operating Voltage Type And Rating250.0 AC SINGLE LOCATION
Reset MethodMANUAL
Maximum Interrupting Capacity Curr1000.0 AC SINGLE LOCATION
Body Width0.750 INCHES NOMINAL
Vendor Part NumbersW91X11-3-1
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 490790 available?
We can source 490790 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 490790 by Dresser, LLC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 490790 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 490790?
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 490790?
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.