Fuses – Erik Prayoga

Littelfuse 15GSE3250E E-Rated Fuse – 250 Amp, 15.5 kV

Erik Prayoga — Fri, 19 Jun 2026 15:02:20 +0000

Littelfuse 15GSE3250E – E-Rated fuses have time current characteristics designed to provide current limiting protection for power transformers, potential transformers, power centers, feeder centers, and unit sub stations. When properly applied, they can protect against high and low value fault currents. NEMA Standards for E-rated medium voltage fuses require that fuses rated 100E or less open within 300 seconds (5 minutes) when subjected to an RMS value of 200-240% of the fuse's continuous current rating; and fuses with an E-rating larger than 100E must open within 600 seconds (10 minutes) when subjected to an rms current of 220-240% of the fuse's continuous current rating. These values establish one point on the time-current curve. Live Parts-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.

Specifications

Manufacturer	Littelfuse
Fuse Amperage Rating	250 Amp
Component	Fuse
Fuse Voltage Rating	15.5 KV
Fuse Type (UL)	E-Rated
Fuse Protection Type	Medium Voltage Fuse

Features

https://cdn2.webdamdb.com/1280_ESqFSXy89ZG48glh.jpg?-62169955622

Littelfuse LFCL750C5 Cable Limiter Fuse – 600 VAC

Erik Prayoga — Fri, 19 Jun 2026 15:02:20 +0000

Littelfuse LFCL750C5 – LFCL- Cable limiters are fusible devices that provide very fast short-circuit protection, primarily to faulted cables, but also to other conductors such as busway. Cable limiters do not have an ampere rating, and cannot be used to provide overload protection. Cable limiters are selected by cable size; for example, a 500 kcmil cable requires a 500 kcmil cable limiter. Their main use is to isolate faulted cables in circuits containing three or more parallel conductors per phase. They may be installed on the line side of the main service to provide short-circuit protection to the service conductors. This is especially important when service conductors are tapped from large low-voltage networks or from large low impedance transformers. Cable limiters have terminals which permit them to be installed in a variety of equipment. The most common configuration is the offset blade on one end and the crimp terminal on the other end. This permits the limiter to replace a cable terminal (lug). Applications:-Service entrance conductors-Between transformers or network bus and busway terminal boxes-Large feeders with three or more conductors per phase-Features:-Current-limiting characteristics provide protection to conductor insulation and reduce damage when faults occur.-Properly applied cable limiters may permit the use of equipment with reduced withstand ratings.-Wide variety of terminations and cable ratings permit use in almost every situation.

Specifications

Fuse Protection Type	Military Applications
Manufacturer	Littelfuse
Component	Fuse
Fuse Type (UL)	Cable Limiter
Fuse Voltage Rating	600 Volt
Interrupt Rating	200 Ka @ 600 Volt

Features

Current-limiting characteristics provide protection to conductor insulation and reduce damage when faults occur.

Properly applied cable limiters may permit the use of equipment with reduced withstand ratings

Wide variety of terminations and cable ratings permit use in almost every situation.

Littelfuse 550E3CL5.5 E-Rated Fuse – 550 Amp, 5.5 kV

Erik Prayoga — Fri, 19 Jun 2026 15:02:20 +0000

Littelfuse 550E3CL5.5 – E-Rated fuses have time current characteristics designed to provide current limiting protection for power transformers, potential transformers, power centers, feeder centers, and unit sub stations. When properly applied, they can protect against high and low value fault currents. NEMA Standards for E-rated medium voltage fuses require that fuses rated 100E or less open within 300 seconds (5 minutes) when subjected to an RMS value of 200-240% of the fuse's continuous current rating; and fuses with an E-rating larger than 100E must open within 600 seconds (10 minutes) when subjected to an rms current of 220-240% of the fuse's continuous current rating. These values establish one point on the time-current curve. Live Parts-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.

Specifications

Manufacturer	Littelfuse
Component	Fuse
Fuse Voltage Rating	5.5 KV
Fuse Amperage Rating	550 Amp
Fuse Type (UL)	E-Rated
Fuse Protection Type	Medium Voltage Fuse
Interrupt Rating	80 Ka @ 5500 Volt

Features

https://cdn2.webdamdb.com/1280_ESqFSXy89ZG48glh.jpg?-62169955622

Littelfuse 600E3C5.5 E-Rated Fuse – 600 Amp, 5.5 kV

Erik Prayoga — Fri, 19 Jun 2026 15:02:20 +0000

Littelfuse 600E3C5.5 – E-Rated fuses have time current characteristics designed to provide current limiting protection for power transformers, potential transformers, power centers, feeder centers, and unit sub stations. When properly applied, they can protect against high and low value fault currents. NEMA Standards for E-rated medium voltage fuses require that fuses rated 100E or less open within 300 seconds (5 minutes) when subjected to an RMS value of 200-240% of the fuse's continuous current rating; and fuses with an E-rating larger than 100E must open within 600 seconds (10 minutes) when subjected to an rms current of 220-240% of the fuse's continuous current rating. These values establish one point on the time-current curve. Live Parts-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.

Specifications

Manufacturer	Littelfuse
Fuse Amperage Rating	600 Amp
Component	Fuse
Fuse Voltage Rating	5.5 KV
Fuse Type (UL)	E-Rated
Fuse Protection Type	Medium Voltage Fuse
Interrupt Rating	80 Ka @ 5500 Volt

Features

https://cdn2.webdamdb.com/1280_ESqFSXy89ZG48glh.jpg?-62169955622

Littelfuse LDC1800 Fuse Class L 1800 Amps

Erik Prayoga — Fri, 19 Jun 2026 15:02:19 +0000

Littelfuse Fuse LDC1800, 1800 Amps, 600 Volts, UL Class L, Time Delay, Extremely Current Limiting, Physical Size: 3 1/2" x 10 3/4", POWR-PRO® Performance, High DC Protection, AC Voltage Rating: 600, DC Voltage Rating: 600, Interrupting Rating: 200,000 AIC @ 600VAC, DC Interrupting Rating: 50,000 AIC, UL Listed, CSA Certified,

Specifications

Fuse Type (UL)	Class L
Fuse Response Time	Time Delayed
Fuse Protection Type	High DC Protection
Manufacturer	Littelfuse
Fuse Size	3-1/2" X 10-3/4"
Fuse Amperage Rating	1800 Amp
Component	Fuse
Fuse Voltage Rating	600 Volt

Features

POWR-PRO® Performance

Extremely Current-Limiting

600 Vac/dc rated

200 kA AC Interrupting Rating

50 kA DC Interrupting Rating

Littelfuse 300E3C15.5S E-Rated Fuse – 300 Amp, 15.5 kV

Erik Prayoga — Fri, 19 Jun 2026 15:02:19 +0000

Littelfuse 300E3C15.5S – E-Rated fuses have time current characteristics designed to provide current limiting protection for power transformers, potential transformers, power centers, feeder centers, and unit sub stations. When properly applied, they can protect against high and low value fault currents. NEMA Standards for E-rated medium voltage fuses require that fuses rated 100E or less open within 300 seconds (5 minutes) when subjected to an RMS value of 200-240% of the fuse's continuous current rating; and fuses with an E-rating larger than 100E must open within 600 seconds (10 minutes) when subjected to an rms current of 220-240% of the fuse's continuous current rating. These values establish one point on the time-current curve. Live Parts-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.

Specifications

Manufacturer	Littelfuse
Fuse Amperage Rating	300 Amp
Component	Fuse
Fuse Voltage Rating	15.5 KV
Fuse Type (UL)	E-Rated
Fuse Protection Type	Medium Voltage Fuse
Interrupt Rating	80 Ka @ 15500 Volt

Features

https://cdn2.webdamdb.com/1280_ESqFSXy89ZG48glh.jpg?-62169955622

Littelfuse 39018R2IB5.5 R-Rated Fuse – 390 Amp, 5.5 kV

Erik Prayoga — Fri, 19 Jun 2026 15:02:19 +0000

Littelfuse 39018R2IB5.5 – “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:-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.

Specifications

Manufacturer	Littelfuse
Component	Fuse
Fuse Voltage Rating	5.5 KV
Fuse Protection Type	Medium Voltage Fuse
Fuse Type (UL)	R-Rated
Fuse Amperage Rating	390 Amp
Interrupt Rating	80 Ka @ 5500 Volt

Features

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 R-rated fuse from sustained overcurrents which are less than their minimum interrupting rating.

Littelfuse 15NLE3150E E-Rated Fuse – 150 Amp, 15.5 kV

Erik Prayoga — Fri, 19 Jun 2026 15:02:19 +0000

Littelfuse 15NLE3150E – E-Rated fuses have time current characteristics designed to provide current limiting protection for power transformers, potential transformers, power centers, feeder centers, and unit sub stations. When properly applied, they can protect against high and low value fault currents. NEMA Standards for E-rated medium voltage fuses require that fuses rated 100E or less open within 300 seconds (5 minutes) when subjected to an RMS value of 200-240% of the fuse's continuous current rating; and fuses with an E-rating larger than 100E must open within 600 seconds (10 minutes) when subjected to an rms current of 220-240% of the fuse's continuous current rating. These values establish one point on the time-current curve. Live Parts-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.

Specifications

Manufacturer	Littelfuse
Fuse Amperage Rating	150 Amp
Component	Fuse
Fuse Voltage Rating	15.5 KV
Fuse Type (UL)	E-Rated
Fuse Protection Type	Medium Voltage Fuse
Interrupt Rating	60 Ka @ 15500 Volt

Features

https://cdn2.webdamdb.com/1280_ESqFSXy89ZG48glh.jpg?-62169955622

Littelfuse 15NLE3175E E-Rated Fuse – 175 Amp, 15.5 kV

Erik Prayoga — Fri, 19 Jun 2026 15:02:19 +0000

Littelfuse 15NLE3175E – E-Rated fuses have time current characteristics designed to provide current limiting protection for power transformers, potential transformers, power centers, feeder centers, and unit sub stations. When properly applied, they can protect against high and low value fault currents. NEMA Standards for E-rated medium voltage fuses require that fuses rated 100E or less open within 300 seconds (5 minutes) when subjected to an RMS value of 200-240% of the fuse's continuous current rating; and fuses with an E-rating larger than 100E must open within 600 seconds (10 minutes) when subjected to an rms current of 220-240% of the fuse's continuous current rating. These values establish one point on the time-current curve. Live Parts-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.

Specifications

Manufacturer	Littelfuse
Fuse Amperage Rating	175 Amp
Component	Fuse
Fuse Voltage Rating	15.5 KV
Fuse Type (UL)	E-Rated
Fuse Protection Type	Medium Voltage Fuse
Interrupt Rating	60 Ka @ 15500 Volt

Features

https://cdn2.webdamdb.com/1280_ESqFSXy89ZG48glh.jpg?-62169955622

Littelfuse 15NLE3250E E-Rated Fuse – 250 Amp, 15.5 kV

Erik Prayoga — Fri, 19 Jun 2026 15:02:19 +0000

Littelfuse 15NLE3250E – E-Rated fuses have time current characteristics designed to provide current limiting protection for power transformers, potential transformers, power centers, feeder centers, and unit sub stations. When properly applied, they can protect against high and low value fault currents. NEMA Standards for E-rated medium voltage fuses require that fuses rated 100E or less open within 300 seconds (5 minutes) when subjected to an RMS value of 200-240% of the fuse's continuous current rating; and fuses with an E-rating larger than 100E must open within 600 seconds (10 minutes) when subjected to an rms current of 220-240% of the fuse's continuous current rating. These values establish one point on the time-current curve. Live Parts-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.

Specifications

Manufacturer	Littelfuse
Fuse Amperage Rating	250 Amp
Component	Fuse
Fuse Voltage Rating	15.5 KV
Fuse Type (UL)	E-Rated
Fuse Protection Type	Medium Voltage Fuse
Interrupt Rating	60 Ka @ 15500 Volt

Features

https://cdn2.webdamdb.com/1280_ESqFSXy89ZG48glh.jpg?-62169955622