A74-10 Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Fabricante

A74-10

Current and Voltage Controls Current Transformer, 3-Phase

Unspecified 

A 74-10, A 74-11

General Specifications

Pollution degree

Ambient temperature

Housing

Dimensions

Material

A74-10

A74-11

Weight

A 74-10

A 74-11

Connection cable

Approval

CE Marking

3 (IEC 60664)

- 20 to + 60°C (- 4 to + 140°F)

120 x 45 x 16 mm

150 x 114 x 23

ABS

200 g

750 g

2 m PVC, 4 x 0.4 mm2

UL

Yes

Mode of Operation

The current metering trans-

former is connected to the

current control relays H 475

as follows:

ductor through the hole sever-

al times makes it possible to

meter currents below the no-

minal range.

Red core to term. 5

White core to term. 6

Yellow core to term. 7

Black core to term. 8.

(starpoint - neutral).

- U1.

- U2.

- U3.

The metered conductor is

drawn through the central

hole of the current metering

transformer. Drawing the con-

If the conductor is drawn

through the central hole e.g. 5

times, the metering trans-

former will register 50 A when

the current in the conductor is

10 A.

In amplitude and phase the

output voltage is proportional

to the phase current metered.

Wiring Diagrams

Input current

Correct connection

Output voltage

U1 Red

Incorrect connection

U3 Yellow

Black

U2 White

U1 Red

U2 White

U3 Yellow

Black

Red

White

Yellow

Black

Dimensions

A 74-10 ..

A 74-11 ..

2

Specifications are subject to change without notice (19.07.06)

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