ABB Installation Products · Electronic Components
1521
Entrance Cap, Electrical
Part Number1521
ManufacturerABB Installation Products
AvailabilityAvailable to order — request a quote
Specifications
NSN5975-00-079-4162 (NSN)
Federal Item NameENTRANCE CAP,ELECTRICAL
Federal Supply Class5975 — Electrical Hardware and Supplies
Hazardous Locations EnvironmentalWEATHERPROOF-NEMA TYPE 3
Conductor Accommodation Quantity5
Nominal Thread Size0.750 INCHES
Accommodation Hole Inside Diameter1.050 INCHES NOMINAL
Overall Height2.562 INCHES NOMINAL
Conduit Trade Size Accommodated0.750
Cable Conduit Type AccommodatedSTANDARD THICKWALL CONDUIT
Mounting MethodTHREAD
Base Thread LocationINTERNAL
Thread SeriesNPT
Style DesignatorRIGID CONDUIT
Electrical Resistance250.000 OHMS
Terminal TypeTAB W/WIRE LEAD
Ambient Temp In Deg Celsius At Zer340.0
Body Length1.000 INCHES NOMINAL
Ambient Temp At Full Rated Power40.0 CELSIUS
Power Dissipation Rating In Watts5.000 FREE AIR
Terminal Width0.125 INCHES NOMINAL
Terminal Length0.188 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeENCAPSULATED
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 1521 available?
We can source 1521 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 1521 by ABB Installation Products obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1521 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 1521?
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 1521?
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.