Square D · Electronic Components
QO3100
MINIATURE CIRCUIT BREAKER 240V 100A
Part NumberQO3100
ManufacturerSquare D
AvailabilityAvailable to order — request a quote
Specifications
NSN3610-01-333-9608 (NSN)
Additional NSNs5925-01-286-2804
Federal Item NameCOPYBOARD,ELECTRONIC
General Characteristics Item DescrWRITE ON BOTH SIDES BY SIMPLY ROTATING THE BOARD AND LOCKING IT INTO POSITION. TWO FULL SURFACES, FRONT AND BACK MAY BE
Criticality Code JustificationTEXT
Federal Supply Class3610 — Printing, Duplicating, And Bookbinding Equipment
Overall Width3.900 INCHES NOMINAL
Manual Actuator Type And Quantity1 TOGGLE
Pole Quantity3
Mounting Facility Type And Quantit6 TERMINAL
Storage TypeGENERAL PURPOSE WAREHOUSE
Fragility FactorMODERATELY RUGGED
Arc Quenching MethodMAGNETIC BLOWOUT
Trip Release Ambient Temp Rating40.0 CELSIUS NOMINAL ALL LOCATIONS
Actuator Position DesignationAT POLE TWO
Inclosure Protection Type For WhicDUSTPROOF
MaterialPLASTIC CASE
Vendor Part Numbers11B5091462
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 QO3100 available?
We can source QO3100 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 QO3100 by Square D obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If QO3100 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 QO3100?
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 QO3100?
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.