Square D · Electronic Components
NQO24-4AB/NQ528B/NQC28TS
Circuit Breaker Box
Part NumberNQO24-4AB/NQ528B/NQC28TS
ManufacturerSquare D
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-009-2062 (NSN)
Federal Item NameCIRCUIT BREAKER BOX
Federal Supply Class5925 — Circuit Breakers
MaterialSTEEL
Overall Height32.500 INCHES NOMINAL
Overall Width14.000 INCHES NOMINAL
Unthreaded Mounting Hole Diameter0.250 INCHES NOMINAL
Style DesignatorRECTANGULAR, SURFACE MOUNTING
Standard Mounting Pattern Designat4 POINT-RECTANGULAR
Mounting MethodUNTHREADED HOLE(S)
Surface TreatmentENAMEL
Overall Depth5.750 INCHES NOMINAL
Center To Center Distance Between29.000 INCHES NOMINAL
Circuit Breaker Current Rating In20.0 AND 100.0
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 NQO24-4AB/NQ528B/NQC28TS available?
We can source NQO24-4AB/NQ528B/NQC28TS 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 NQO24-4AB/NQ528B/NQC28TS by Square D obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If NQO24-4AB/NQ528B/NQC28TS 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 NQO24-4AB/NQ528B/NQC28TS?
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 NQO24-4AB/NQ528B/NQC28TS?
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.