Rockwell Automation, Inc. · Electronic Components
X277745
Fuseholder, Block
Part NumberX277745
ManufacturerRockwell Automation, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5920-01-144-3108 (NSN)
Federal Item NameFUSEHOLDER,BLOCK
Federal Supply Class5920 — Fuses and Lightning Arresters
Voltage In Volts250.0
Fuse Terminal Type AccommodatedFERRULE
MaterialCOPPER ALLOY CONTACT
Surface TreatmentCADMIUM CONTACT
Terminal Type And Quantity2 SCREW
Mounting Hole Diameter0.188 INCHES NOMINAL
Overall Height0.875 INCHES NOMINAL
Mounting Hole StyleONE HOLE MOUNTING
Fuse Accommodation Quantity1
Base Thickness0.125 INCHES NOMINAL
Overall Width1.031 INCHES NOMINAL
Cancelled NSN5920-01-024-1936 (cancelled)
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 X277745 available?
We can source X277745 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 X277745 by Rockwell Automation, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If X277745 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 X277745?
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 X277745?
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.