Square D · Electronic Components
QO1520
MINIATURE CB 120/240V 15A/20A
Part NumberQO1520
ManufacturerSquare D
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-00-914-2709 (NSN)
Federal Item NameCIRCUIT BREAKER
MaterialPLASTIC CASE
Terminals1 CLIP AND 1 COMPRESSION
Body StyleSINGLE POLE TYPE
Body Width0.730 INCHES NOMINAL
Maximum Continuous Load Current Ra20.0 AMPERES AC SINGLE LOCATION
Maximum Interrupting Capacity Curr10000.0 AC SINGLE LOCATION
Body Height2.310 INCHES NOMINAL
Ultimate Trip Rating Of Continuous125.0 SINGLE LOCATION
Operating Voltage Type And Rating240.0 AC SINGLE LOCATION
Main Contact Tripping Mechanism TyTRIP FREE
Federal Supply Class5925 — Circuit Breakers
Trip Release CharacteristicINSTANTANEOUS AND TIME DELAY SINGLE LOCATION
Circuit Protection TypeOVERCURRENT SINGLE LOCATION
Reset MethodMANUAL
Trip Release MethodTHERMAL-MAGNETIC SINGLE LOCATION
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 QO1520 available?
We can source QO1520 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 QO1520 by Square D obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If QO1520 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 QO1520?
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 QO1520?
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.