Datasheet > 0487008

0487008

更新时间： 2023-12-06 20:08:20

品牌	Logo	应用领域
力特 - LITTELFUSE		数据中心服务器电信高压
页数	文件大小	规格书
3页	584K
描述
487系列是Littelfuse 5X20毫米保险丝系列中的首款快熔型保险丝，具有交流和直流额定值。这款快熔型陶瓷管保险丝可为电信电源和数据中心服务器电源等需要高压直流中断额定值的应用提供过流保护。功能与特色: 应用:

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0487008 数据手册

Axial Lead & Cartridge Fuses

5×20 mm > Fast-Acting > 487 Series

RoHS

487 Series, 5×20 mm, Fast-Acting Fuse

Description

The 487 Series is a 420VAC/420VDC rated 5x20mm fast-

acting ceramic body fuse, designed to ensure the best

coordination between a power supply unit (PSU) and an

electrical circuit breaker panel during short-circuit and over-

current faults. When installed in a PSU, the 487 series

fuse opens faster than the circuit breaker and removes

the problematic PSU while preventing the circuit breaker

from shutting down other critical systems. With 420VAC

characteristics, the 487 Series is well suited for high-

energy applications like 3-phase power supplies, inverters,

and ballasts. With 420VDC characteristics, it is optimal

for high-voltage DC power grid in data centers, telecom

applications, and intelligent commercial buildings.

Agency Approvals

Features

•

Lower I²t and faster

tripping

•

RoHS compliant and

Lead-free

Agency

Agency File Number

Ampere Range

E10480

8 - 20A

High current ratings up

to 20A in a 5x20mm

footprint

Recognized to UL 248-1

and UL 248-14

J 50293210

Approved to EN 60127-1

and EN 60127-7

•

Rated voltage @ 420VAC,

420VDC

Available in cartridge and

axial leaded versions

Electrical Characteristics for Series

Applications

• Telecom power supplies

% of Ampere Rating

OpeningTime

60 minutes, Minimum

• Data center server power supplies

100%

210%

275%

400%

1000%

• Higher energy and power efﬁcient applications

30 minutes, Maximum

0.04 sec., Min.; 20 sec. Max.

0.01 sec., Min.; 1.0 sec. Max.

0.03 sec., Max.

Additional Information

Resources

Datasheet

Samples

Speciﬁcations are subject to change without notice.

Revised: 08/22/19

12 3

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