.500A, 250V, 314 Series, Fast-Acting Fuse

Item #: 677811
Cat #: 314.500P
UPC: 079458923773
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500 Amp, 250 Volts, 314 Series, 3AB Type, Cartridge Fuse, Fast-Acting, 10,000 Amp @ 125V AC & 35 Amp @ 250V AC Interrupting Rating

Overview

500 Amp, 250 Volts, 314 Series, 3AB Type, Cartridge Fuse, Fast-Acting, 10,000 Amp @ 125V AC & 35 Amp @ 250V AC Interrupting Rating
“R” rated fuses provide required short-circuit protection for medium voltage motors, motor controllers and associated circuitry. These components have limited ability to absorb the energy of large short circuit currents. Medium voltage motor controllers contain overload relays which provide both overload protection and locked rotor protection to the motor. The controllers are also intended to interrupt low value short circuits within the capability of the motor controller. This protects the medium voltage fuse from sustained overcurrents which are less than their minimum interrupting rating. NEMA Standards for “R” rated medium voltage power fuses require that they operate within 15-35 seconds when subjected to an rms current 100 times the “R” rating. For example, a fuse with a 2R rating will open within 15 to 35 seconds on an applied current of 2 x 100 = 200 amperes. Live parts are available for mounting “E”, “R”, and “PT” single, double, and triple barrel fuses. Mounting clips are available for ferrule type and clip lock style fuses. All clips are sold in pairs. Contact factory for additional live parts.
Also known as: 079458923773, 314.500P

Specifications

Material: Ceramic
Opening: Fast-Acting
Diameter: 0.250 in
Volts AC: 250
Mounting: Cartridge
Class: 3AB
Length: 1.250 in
Amps: 0.500
Standards: California Proposition 65
Interrupt Rating DC: 3.5kA
Material: Ceramic
Diameter: 0.250 in
Mounting: Cartridge
Length: 1.250 in
Standards: California Proposition 65
Opening: Fast-Acting
Volts AC: 250
Class: 3AB
Amps: 0.500
Interrupt Rating DC: 3.5kA

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