Square D · Electronic Components
QO342MQ200RB
LOAD CENTER QO RB MB 200A 3PH 42 CIRCUIT
Part NumberQO342MQ200RB
ManufacturerSquare D
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-711-1979 (NSN)
Federal Item NameCIRCUIT BREAKER BOX
MaterialSTEEL
Overall Width14.76 INCHES NOMINAL
Overall Height39.37 INCHES NOMINAL
Furnished Items And Quantity1 COVER
Hazardous Locations EnvironmentalWEATHERPROOF
Style DesignatorRECTANGULAR, SURFACE MOUNTING
Main Line Maximum Current Rating I200.0
Main Line Maximum Ac Voltage Ratin240.0
System For Which DesignedTHREE WIRE THREE PHASE AND FOUR WIRE THREE PHASE
Federal Supply Class5925 — Circuit Breakers
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 QO342MQ200RB available?
We can source QO342MQ200RB 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 QO342MQ200RB by Square D obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If QO342MQ200RB 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 QO342MQ200RB?
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 QO342MQ200RB?
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.