Siemens Energy & Automation · Electronic Components
NGB3B030B
Circuit Breaker
Part NumberNGB3B030B
ManufacturerSiemens Energy & Automation
AvailabilityAvailable to order — request a quote
Specifications
NSN5925-01-661-4971 (NSN)
Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Unpackaged Unit Weight4.0 POUNDS NOMINAL
Trip Release MethodTHERMAL-MAGNETIC SINGLE LOCATION
Operating Voltage Type And Rating600.0 AC SINGLE LOCATION
Maximum Continuous Load Current Ra30.0 AMPERES AC SINGLE LOCATION
Pole Quantity3
Overall Width3.0 INCHES NOMINAL
Overall Height4.5 INCHES NOMINAL
Body StyleMULTIPOLE-SINGLE ACTUATOR TYPE
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 NGB3B030B available?
We can source NGB3B030B 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 NGB3B030B by Siemens Energy & Automation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If NGB3B030B 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 NGB3B030B?
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 NGB3B030B?
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.