Schneider Electric Usa, Inc. · Electronic Components
M9F42120
Circuit Breaker
Part NumberM9F42120
ManufacturerSchneider Electric Usa, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-721-8489 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Maximum Continuous Load Current Ra20.0 AMPERES AC SINGLE LOCATION
Manual Actuator Type And Quantity1 TOGGLE
Actuator Position DesignationAT POLE ONE
Body Height4.06 INCHES NOMINAL
Pole Quantity1
Body Diameter2.80 INCHES NOMINAL
Body StyleSINGLE POLE TYPE
Features ProvidedROHS DIRECTIVE COMPLIANCE
Mounting Facility Type And Quantit1 DIN RAIL AND 1 CLIP
Body Width0.700 INCHES NOMINAL
ESD/EMICode A — ESD/EMI sensitive item
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 M9F42120 available?
We can source M9F42120 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 M9F42120 by Schneider Electric Usa, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M9F42120 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 M9F42120?
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 M9F42120?
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.