Square D · Electronic Components
QOB270
MINIATURE CIRCUIT BREAKER 120/240V 70A
Part NumberQOB270
ManufacturerSquare D
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-023-2472 (NSN)
Federal Item NameCIRCUIT BREAKER
MaterialPLASTIC CASEPLASTIC CASE
Terminals2 CLIP AND 2 CLIP AND 2 SCREW2 SCREW
Body StyleMULTIPOLE-SINGLE ACTUATOR TYPEMULTIPOLE-SINGLE ACTUATOR TYPE
Body Length3.000 INCHES NOMINAL3.000 INCHES NOMINAL
Maximum Continuous Load Current Ra70.0 AMPERES AC ALL LOCATIONS70.0 AMPERES AC ALL LOCATIONS
Ultimate Trip Rating Of Continuous125.0 ALL LOCATIONS125.0 ALL LOCATIONS
Maximum Interrupting Capacity Curr5000.0 AC ALL LOCATIONS5000.0 AC ALL LOCATIONS
Operating Voltage Type And Rating240.0 AC ALL LOCATIONS240.0 AC ALL LOCATIONS
Circuit Protection TypeOVERCURRENT ALL LOCATIONSOVERCURRENT ALL LOCATIONS
Main Contact Tripping Mechanism TyTRIP FREETRIP FREE
Federal Supply Class5925 — Circuit Breakers
Reset MethodMANUALMANUAL
Trip Release CharacteristicINSTANTANEOUS AND INSTANTANEOUS AND TIME DELAY ALL LOCATIONSTIME DELAY ALL LOCATIONS
Trip Release MethodTHERMAL-MAGNETIC ALL LOCATIONSTHERMAL-MAGNETIC ALL LOCATIONS
Storage TypeGENERAL PURPOSE WAREHOUSEGENERAL 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 QOB270 available?
We can source QOB270 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 QOB270 by Square D obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If QOB270 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 QOB270?
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 QOB270?
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.