Siemens Energy And Automation Inc. Drives And Systems Div · Electronic Components
NJX3B300
Circuit Breaker
Part NumberNJX3B300
ManufacturerSiemens Energy And Automation Inc. Drives And Systems Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-659-6066 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Trip Release MethodTHERMAL-MAGNETIC SINGLE LOCATION
Trip Release Ambient Temp Rating40.0 CELSIUS NOMINAL SINGLE LOCATION
Maximum Interrupting Capacity Curr65.0 AC AND 25.0 AC SINGLE LOCATION
Operating Voltage Type And Rating240.0 AC AND 600.0 AC SINGLE LOCATION
Maximum Continuous Load Current Ra300.0 AMPERES DC SINGLE LOCATION
Frequency In Hertz60.0 SINGLE LOCATION
Body StyleMULTIPOLE-SINGLE ACTUATOR TYPE
Overall Length4.2 INCHES NOMINAL
Pole Quantity3
Overall Height11.0 INCHES NOMINAL
Overall Width5.5 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 NJX3B300 available?
We can source NJX3B300 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 NJX3B300 by Siemens Energy And Automation Inc. Drives And Systems Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If NJX3B300 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 NJX3B300?
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 NJX3B300?
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.