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Northrop Grumman Systems  · Electronic Components

578R330H02

Circuit Breaker

Part Number578R330H02
ManufacturerNorthrop Grumman Systems
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameCIRCUIT BREAKER
Federal Supply Class5925 — Circuit Breakers
Reset MethodMANUAL
Trip Release MethodMAGNETIC-HYDRAULIC ALL LOCATIONS
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Trip Release CharacteristicTIME DELAY ALL LOCATIONS
Main Contact Tripping Mechanism TyTRIP FREE
Maximum Continuous Load Current Ra10.0 AMPERES AC ALL LOCATIONS
Maximum Interrupting Capacity Curr300.0 AC ALL LOCATIONS
Thread Quantity Per Inch32
Pole Quantity3
Actuator FunctionTRIP-RESET
MaterialPLASTIC CASE
Vendor Part NumbersAP111R944-2
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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

Frequently asked

Is 578R330H02 available?
We can source 578R330H02 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 578R330H02 by Northrop Grumman Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 578R330H02 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 578R330H02?
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 578R330H02?
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.