Datasheet > 225E2C2.75

225E2C2.75

更新时间： 2024-10-29 13:45:11

品牌	Logo	应用领域
力特 - LITTELFUSE		变压器
页数	文件大小	规格书
10页	564K
描述
E级保险丝具有时间电流特性，可为变压器、电压互感器、电源中心、馈电中心和单元变电所提供限流保护。如正确应用，还可以保护设备免受强、弱故障电流的破坏。 NEMA标准针对E级中等电压保险丝的要求如下

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225E2C2.75 数据手册

POWR-GARD^®Fuse Datasheet

MEDIUM VOLTAGE FUSES

2,400-38,000 VAC • Current-Limiting

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 ¹2” minimum;

extension force 2 lb. minimum.

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.

Description

Littelfuse^®offers a 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 available for virtually any application. Hermetically sealed

fuses for use in hazardous environments are also offered.

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.

Contact the factory or your local Littelfuse representative for

additional fuse ratings or custom mounting conﬁgurations.

24-Hour Emergency Service - Call 800-227-0029

Applications

• PowerTransformer Protection

• PotentialTransformer Protection

• Motor Controller Back-up Protection

• Fused Switches

• Feeder Circuits

Bolt-in Mount Fuses

Rev: 063014

1 of 10

littelfuse.com

12 3 4 5 6 7...10

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与225E2C2.75相关器件

型号	品牌	获取价格	描述	数据表
225E-2C-2.75	LITTELFUSE	获取价格	E Rated Medium Voltage Fuses
225E-2C-2.75S	LITTELFUSE	获取价格	Electric Fuse, Medium Blow, 225A, 2750VAC, 80000A (IR), Inline/holder,
225E2CL5.5	LITTELFUSE	获取价格	ELECTRIC FUSE
225E-2CL-5.5	LITTELFUSE	获取价格	E Rated Medium Voltage Fuses
225E2CL8.25	LITTELFUSE	获取价格	MEDIUM VOLTAGE FUSES
225E-2CL-8.25	LITTELFUSE	获取价格	E Rated Medium Voltage Fuses
225E3CL15.5	LITTELFUSE	获取价格	E级保险丝具有时间电流特性，可为变压器、电压互感器、电源中心、馈电中心和单元变电所提供限流
225E-3CL-15.5	LITTELFUSE	获取价格	E Rated Medium Voltage Fuses
225E3CL8.25	LITTELFUSE	获取价格	E级保险丝具有时间电流特性，可为变压器、电压互感器、电源中心、馈电中心和单元变电所提供限流
225F Series (IP67)	CTS	获取价格

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