K2CM

4

Connections

■ Voltage Reverse-phase Detection Models

Terminal Arrangement

• Perform the external connections by referring to the examples given below.

• Obtain the control power supply from the same phase as the power supply to

the magnet contactor coil.

• Connect the phase advancing capacitors closer to the power supply than the

current transformer, as shown in the examples.

• Tighten the terminal screws to a torque of 0.98 N·m max. (The appropriate

tightening torque is 0.49 to 0.67 N·m.)

• Use of insulated solderless terminals is recommended for connection to the

Relay terminals (M3.5).

Note: 1. In principle, the K2CM must be surface mounted with the terminal

block facing downward.

2. Use M5 screws with spring washers and flat washers for mounting.

Tighten the screws to a torque of 1.77 N·m max. (The appropriate

tightening torque is 1.08 to 1.57 N·m.)

Manual Operation Low-voltage Circuit

Manual Operating Low-voltage Circuit (

Start)

Manual Operation Low-voltage Circuit (High-

capacity Motor)

Automatic Operation Low-voltage Circuit

Manual Operation High-voltage Circuit

Note: Connect the phase advancing capacitor on the power supply

side of the Motor Protective Relay as shown in the above dia-

grams.

Ta

Tc Tb U

V

W

Output contacts

(SPDT)

Control power

supply

200 VAC

50/60Hz

RS

T

Stop

Start

Phase

advancing

capacitor

Alarm

buzzer

BZ

Magnet

contactor

R

U

A

1

S

V

B

2

T

W

C

3

Ta

Tc Tb

U

V

W

Motor protective relay

Motor

M

RS

T

BZ

R

U

A

1

S

V

B

2

T

W

C

3

Ta

Tc Tb

U

V

W

M

changeover

200 VAC

50/60Hz

Stop

Start

Phase

advancing

capacitor

Alarm

buzzer

Magnet

contactor

Motor protective relay

RS

T

Current converter for

measuring device

@/5A

BZ

R

U

A

1

S

V

B

2

T

W

C

3

Ta

Tc Tb

U

V

W

Motor

M

200 VAC

50/60Hz

Stop

Start

Phase advancing

capacitor

Alarm

buzzer

Magnet

contactor

Motor protective relay

RS

T

Automatic

contact

BZ

R

U

A

1

S

V

B

2

T

W

C

3

Ta

Tc Tb

U

V

W

M

Motor

200 VAC

50/60Hz

Phase advancing

capacitor

Alarm

buzzer

Magnet

contactor

Motor protective relay

3, 300 VAC

50/60Hz

RS

T

X/a

Auxiliary

relay

BZ

R

U

A

1

S

V

B

2

T

W

C

3

Ta

Tc Tb

U

V

W

High-voltage

motor

M

X

Transformer

@/200V

High-tension

fuse

Current converter for

measuring device

@/5A

Stop

Start

Phase advancing

capacitor

Alarm

buzzer

High-voltage

magnet contactor

Motor protective relay