K8AB-PW 데이터 시트보기 (PDF) - OMRON Corporation

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K8AB-PW

Three-phase Voltage Relay

OMRON Corporation 

Nomenclature

■ Front

Terminal block

(See notes 1 and 2.)

Power indicator

Relay status indicator

Alarm indicator

Overvoltage knob (OVER)

Undervoltage knob (UNDER)

Operating time knob (T)

Terminal block

(See notes 1 and 2.)

K8AB-PW

Indicators

Item

Meaning

Power indicator

(PWR: Green)

Lit when power is being supplied (see note).

Relay status indicator

(RY: Yellow)

Lit when relay is operating (normally lit).

Alarm

indicator

(ALM:

Red)

Overvoltage:

Red

Lit when there is an overvoltage.

The indicator flashes to indicate the error status

after the overvoltage has exceeded the threshold

value while the operating time is being clocked.

Undervoltage: Lit when there is an undervoltage or phase loss.

Red

The indicator flashes to indicate the error status

after the undervoltage has exceeded the threshold

value while the operating time is being clocked.

Note: The input across L1 and L2 is used for the internal power

supply. Therefore, the power indicator will not be lit if there is no

input across L1 and L2.

Setting Knobs

Item

Usage

Overvoltage knob (OVER) Can be set between −30% and 25% of the rated

input.

Undervoltage knob

(UNDER)

Can be set between −30% and 25% of the rated

input.

Operating time knob (T) Used to set the operating time to 0.1 to 30 s.

Note: 1. Use either a solid wire of 2.5 mm2 maximum or a ferrule with

insulating sleeve for the terminal connection.

The length of the exposed current-carrying part inserted

into the terminal must be 8 mm or less to maintain dielectric

strength after connection.

For 2.5 mm2 or

smaller solid wires

For ferrules with

insulating sleeves

8 mm max.

Recommended ferrules

Phoenix Contact

• Al 1,5-8BK (for AWG16)

• Al 1-8RD (for AWG18)

• Al 0,75-8GY (for AWG18)

2. Tightening torque

Recommended: 0.49 N·m

Maximum:

0.54 N·m

8 mm max.

6

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