ECNR4 [ETC]

Class RK5 250Vac, 1 to 60A Dual-Element, Time-Delay Fuses;


型号：	ECNR4
厂家：	ETC
描述：	Class RK5 250Vac, 1 to 60A Dual-Element, Time-Delay Fuses
文件：	总2页 (文件大小：254K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ECNR

Class RK5 250Vac, 1 to 60A

Dual-Element, Time-Delay Fuses

Dimensions (inches)

Catalog Numbers (amps)

Catalog Symbol: ECNR

ECNR1

ECNR2

ECNR3

ECNR4

ECNR5

ECNR6

ECNR7

ECNR8

ECNR9

ECNR10

ECNR12

ECNR15

ECNR17.5

ECNR20

ECNR25

ECNR30

ECNR35

ECNR40

ECNR45

ECNR50

ECNR60

Dual-Element, Time-Delay – 10 seconds (minimum) at 500%

rated current (8 seconds for fuses 30A or less)

Current-Limiting

Volts: 250Vac (or less)

125Vdc (or less)

Amps: 1 to 60A

IR: 200kA RMS Sym.

Carton Quantity and Weight

Agency Information: CE, UL Listed, Std. 248-12,

Class RK-5, Guide JDDZ, File E162363, CSA

Certified, C22.2 No. 248.12, Class 1422-02,

File 700489

Carton

Quantity

Weight per Carton

Amps

1–15

17.5–30

35–60

lbs

0.40

0.50

1.00

0.18

0.23

0.45

Features

• Provides motor overload, ground fault and short-circuit

protection.

Class RK5 Fuse Blocks (250V) Catalog Data

(Clip Retaining Spring Standard, Suffix “R”)

• Helps protect motors against burnout from overloads.

Terminal Type (Suffix No.)

Basic

Screw

w/ Pres.

Box Lug

• Helps protect motors against burnout from single-

phasing on three-phase systems.

Catalog

Number

—

w/ Clip Quick

Amps

Plate

—

CU only Connect

R25030-1 SR

R25030-2 SR

R25030-3 SR

R25060-1

R25060-2

R25060-3

COR

—

• Simplifies and improves blackout prevention (selective

coordination).

• Dual-element fuses can be applied in circuits subject to

temporary motor overloads and surge currents to

provide both high performance short-circuit and overload

protection.

—

• The overload element provides protection against low

level overcurrent of overloads and will hold an overload

which is five times greater than the amp rating of the

fuse for a minimum of ten seconds.

Form No. ECNR 1-60

Page 1 of 2

Data Sheet #1315

0509

BU-SB08624

ECNR

Class RK5 250Vac, 1 to 60A

Dual-Element, Time-Delay Fuses

Current Limitation Curves

Time-Current Characteristic Curves–

Average Melt

10 15

Time-Current Characteristic Curves–

Average Melt

Fuse Reducers For Class R Fuses

Equipment

Fuse Clips

60A

Desired Fuse

(Case) Size

30A

Catalog Number

(Pairs) 250V

No. 263-R

100A

30A

No. 213-R

60A

No. 216-R

No. 226-R

200A

The only controlled copy of this document is the electronic read-only version maintained by Cooper Bussmann. All other copies of this document are by

definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end

user with design applications. Cooper Bussmann reserves the right, without notice, to change design or construction of any products and to

discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update, without notice, any technical information

contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.

Form No. ECNR 1-60

0509

BU-SB08624

Page 2 of 2

Data Sheet #1315

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