1304R1IB2.75 Littelfuse Inc, 1304R1IB2.75 Datasheet

1304R1IB2.75

Manufacturer Part Number

1304R1IB2.75

Description

Fuses V A Limiting 2.75kV

Manufacturer

Littelfuse Inc

Datasheet

1.1003R1C5.5.pdf (6 pages)

Specifications of 1304R1IB2.75

Current Rating

130 Amps

Voltage Rating

2.75 KVolts

Fuse Size / Group

Termination Style

Bolt Down

Product

Medium Voltage Fuse

Interrupt Rating

80 KAmps

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Medium Voltage Fuses

2,400 - 38,000 VAC • Current-Limiting

Littelfuse now offers a complete selection of “E” and “R” rated

medium voltage fuses for the protection of transformers, potential

transformers, feeders, and motor circuits. Single, double, and triple

barrel designs are available to cover a wide range of current, voltage,

and interrupting ratings. Conventional ferrule type, clip lock, and bolt-in

mounting configurations are now available for virtually any application.

Hermetically sealed fuses for use in hazardous environments are also

offered.

Contact the factory or your local Littelfuse representative for additional

fuse ratings or custom mounting configurations.

24 Hour Emergency Service is available. Call 847 824 1188.

Applications

Power Transformer Protection

Potential Transformer Protection

Motor Controller Back-up Protection

Fused Switches

Feeder Circuits

Medium Voltage Fuses

w w w . l i t t e l f u s e . c o m

General Information

The terms “Medium Voltage” and “High Voltage” have been used

interchangeably by many people to describe fuses operating above 600

volts. Technically speaking, “medium voltage” fuses are those intended

for the voltage range from 2,400 to 38,000 VAC. “High voltage” fuses

are for circuits carrying voltages greater than 38,000 VAC.

“E” rated fuses are considered to be general purpose fuses and can be

used to protect against low and high values of fault current. “R” rated

fuses are designed for back-up protection. They must be used in series

with other devices such as motor overload relays in order to achieve

both overload and short-circuit protection.

Medium voltage fuses are not intended to provide overload protection in

the same sense as fuses rated 600 volts or less. Medium voltage fuse

current ratings do not have the same meanings as the ampere ratings of

low voltage fuses.

All medium voltage fuses are limited in their ability to interrupt low value

overcurrents, especially those between 100% and 200% of the fuse’s

continuous current rating. They are designed to carry their rated current

without exceeding the temperature rise permitted by NEMA and ANSI

standards.

Additional application data can be found in the Fuse Application section

of this catalog.

Bolt-in Mount Fuses

Current-limiting “E” and “R” rated fuses

are equipped with a mechanical indicator

or striker pin that protrudes through the

fuse cap upon operation of the fuse. This

provides visual identification of a blown

fuse and can be used as a trigger for

external devices.

Note: Extension distance

force 2lb. min

•

POWR-GARD

” min; extension

™

Products Catalog

Related parts for 1304R1IB2.75

1304R1IB2.75 Summary of contents

Page 1

... All medium voltage fuses are limited in their ability to interrupt low value overcurrents, especially those between 100% and 200% of the fuse’s continuous current rating. They are designed to carry their rated current without exceeding the temperature rise permitted by NEMA and ANSI standards ...

Page 2

... NEMA Standards for “R” rated medium voltage power fuses require 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 seconds on an applied current 100 = 200 amperes ...

Page 3

... R Rated Medium Voltage Fuses Current-Limiting Dim.A (Clip Center) R Old Catalog Catalog Number Rated Number 70-2R-1C-5.5 LCL 2R 100-3R-1C-5.5 LCL 3R 130-4R-1C-5.5 LCL 4R 150-5R-1C-5.5 LCL 5R 170-6R-1C-5.5 LCL 6R 200-9R-1C-5.5 LCL 9R 230-12R-1C-5.5 LCL 12R 390-18R-2C-5.5 LCL 18R 450-24R-2C-5.5 LCL 24R 480-26R-2C-5.5 — 550-30R-2C-5.5 — 600-32R-2C-5.5 — ...

Page 4

... Dia. Indicator Dim.B Dim.B Figure 9 Figure 10 Inverted-Bolt “IB” Min. Interrupting Max Interrupting Figure Rating RMS Amps Rating RMS (Asym) Number ...

Page 5

... R Rated Medium Voltage Fuses Current-Limiting .44" X .91" Slots (1.53" c.t.c.) Bolt-In Mount “BI” Old R Catalog Catalog Number Rated Number 70-2R-1BI-5.5 — 100-3R-1BI-5.5 — 130-4R-1BI-5.5 — 150-5R-1BI-5.5 — 170-6R-1BI-5.5 — 200-9R-1BI-5.5 — 230-12R-1BI-5.5 — 390-18R-2BI-5.5 — 450-24R-2BI-5.5 — 480-26R-2BI-5.5 — 550-30R-2BI-5.5 — ...

Page 6

... 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. ...

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