Rockwell Automation, Inc. · Electronic Components
1491-N121
Fuseholder, Block
Part Number1491-N121
ManufacturerRockwell Automation, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-00-081-5904 (NSN)
Federal Item NameFUSEHOLDER,BLOCK
Federal Supply Class5920 — Fuses and Lightning Arresters
Internal Circuit Configuration And1 POLE, MAINLINE, FUSED
MaterialCOPPER ALLOY CONTACT
Surface TreatmentNICKEL CONTACT
Terminal Type And Quantity2 SCREW
Coating MethodPLATED CONTACT
Current Carrying Rating In Amps30.0
Voltage In Volts250.0
Accommodated Fuse Length1.250 INCHES NOMINAL
Overall Width1.438 INCHES NOMINAL
Mounting Hole StyleDIAGONAL TO THE LEFT
Center To Center Distance Between0.375 INCHES NOMINAL
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 1491-N121 available?
We can source 1491-N121 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 1491-N121 by Rockwell Automation, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1491-N121 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 1491-N121?
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 1491-N121?
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.