MCGRAW-EDISON FUSES

McGraw Edison fusesMcGraw-Edison fuses (Kearney) has origins that date back to the great Thomas Edison. The Kearney brand was a family company founded in 1926. Over the years they developed a vast array of reliable and durable connectors and hardware, such as split-bolt connectors, h-frame connectors, type X fuse links, interchangeable fuses, and more.

 

Thomas A. Edison, Incorporated, one of Thomas Edison’s original companies founded in 1910 combined with McGraw Electric Company in 1957 to form McGraw-Edison. In 1985, McGraw-Edison fuses became part of Cooper Power Systems. When RTE fuses was acquired by Cooper Industries in 1988 and merged with McGraw-Edison Power Systems, Cooper Power Systems was formed.

 

A few of their more popular fuses are:

  • The ELSP Current-limiting Backup McGraw-Edison fuses - ELSP Current-limiting Backup FuseFuse which is used in series with low current primary protection devices such as a Bay-O-Net Fuse or MagneX Interrupter. The ELSP fuse is used in transformers to protect and isolate faulted equipment. When connected in series with a low current primary protection device, the fuse becomes an element of a two-part protection system that gives a full range of fault protection. This two-part system provides low current protection with the replaceable expulsion fuse or resettable MagneX Interrupter, and it adds the energy limiting protection of a current-limiting fuse.
  • The Bay-O-Net Fuse Link is used in Bay-O-Net fuse assemblies to protect distribution apparatus from damaging currents and to protect distribution systems from failed apparatus. Bay-O-Net fuses can be used on single-phase conventional and self-protected distribution transformers and on three-phase equipment.
  • The ELX fuse is a full range current-limiting fuse designed to provide over current protection. It is completely interchangeable with similar fuses using industry standard clip-style and dry well canister mountings.
  • The RTE® ELST full range current-limiting tandem fuse McGraw-Edison fuses - ELST full range current-limiting tandem fuse assembly is designed for use in pad mount switch gear filled with transformer oil or approved equivalent. It may also be used in large pad mount transformers.

 

If you don’t see what you are looking for, you can reach us by phone at 800-328-0496 or contact us by email. National Fuse is proud to offer superior customer service, and our knowledgeable staff will be happy find what you need and quickly package and ship it to your door.

Product Image
Catalog #
Description
Price
50A 5.5KV NX FUSE General
Eaton provides overload protection for all indoor
and underground cable distribution systems 2.4
through 34.5 kV with its Cooper Power™ series
NX current-limiting fuses. NX fuses are noiseless
and expel no hot gases or burning particles while
interrupting currents from minimum melt to
maximum fuse rating (50,000 A through 23 kV,
35,000 A through 27 and 38 kV). Their current-
limiting capability greatly reduces the momentary
duty on protected equipment, extending the life
and, in some cases, reducing the original cost of
that equipment.
The ability of an NX fuse to interrupt low-current
faults eliminates the need for auxiliary devices to
handle these troublesome current levels. An NX
fuse extends system coordination because it is
fast clearing and current-limiting—conductor and
equipment damage caused by high currents is
virtually eliminated.
Clip-style NX fuse
The basic NX fuse unit (top left) is designed to
mount in a clip-style mounting. Basic clip-style NX
fuses are available in 4.3, 5.5, 8.3, 15.5, 23, 27, and
38 kV ratings.
NX Fuse with Arc-Strangler loadbreak device
An NX fuse with Eaton’s Cooper Power series
Arc-Strangler load breaking device, (top middle)
that mounts in a hinge-style mounting is available
on 4.3, 5.5, 8.3, and 15.5 kV fuses. All current
magnitudes from excitation current through 200 A
can be interrupted positively and safely by opening
the fuse with a switch disconnect stick.
These units have the same operating
characteristics as the basic clip-style fuse, along
with loadbreaking capabilities.
Arc-Strangler switchblade
Switchblades with the Arc-Strangler loadbreaking
device are available in 8.3 and 15.5 kV, 200 A
continuous current ratings (top right).
$540.50