● ISO 9001:2015 · ANSI/ESD S20.20-2021 · ERAI Member · GIDEP · Woman-Owned Small Business 760.724.2800 · 855.RH.HAS.IT · info@rhelectronics.com
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Square D  · Electronic Components

LUCA18FU

STD.CNTRL.UNIT-CL10-3PH 4.5-18A 110-240VAC

Part NumberLUCA18FU
ManufacturerSquare D
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NamePROTECTOR,THERMAL-OVERLOAD,ELECT
Federal Supply Class6110 — Electrical Control Equipment
Vendor Part NumbersLB1-LC03-M17
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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 LUCA18FU available?
We can source LUCA18FU 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 LUCA18FU by Square D obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If LUCA18FU 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 LUCA18FU?
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 LUCA18FU?
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.