Square D · Electronic Components
QO2100H
MINIATURE CIRCUIT BREAKER 240V 100A
Part NumberQO2100H
ManufacturerSquare D
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-00-440-5177 (NSN)
Federal Item NameCIRCUIT BREAKER
MaterialPLASTIC CASE
Terminals4 CLIP
Body StyleMULTIPOLE-SINGLE ACTUATOR TYPE
Body Width1.500 INCHES NOMINAL
Reset MethodMANUAL
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Maximum Continuous Load Current Ra100.0 AMPERES AC ALL LOCATIONS
Trip Release MethodTHERMAL-MAGNETIC ALL LOCATIONS
Main Contact Tripping Mechanism TyTRIP FREE
Ultimate Trip Rating Of Continuous125.0 ALL LOCATIONS
Federal Supply Class5925 — Circuit Breakers
Manual Actuator Type And Quantity1 TOGGLE
Actuator FunctionTRIP-RESET
Pole Quantity2
Storage TypeGENERAL PURPOSE WAREHOUSE
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 QO2100H available?
We can source QO2100H 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 QO2100H by Square D obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If QO2100H 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 QO2100H?
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 QO2100H?
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.