CSM_K2CM_DS_E_5_1

1

Motor Protective Relay

K2CM

Solid-state Relay Enables Choice of Three

Operating Functions (Overcurrent, Open-

phase, and Reverse-phase)

• Protects 3-phase induction motors and their loads from dam-

age.

• Selection and combination of operating functions from overcur-

rent, open-phase, and reverse-phase.

• Circuit and output relay operation can be checked by just oper-

ating the test button.

• The set time value can be checked easily because operation

time is indicated from the start of operation.

• Space-saving, integrated construction.

Note: If the K2CM is used with an inverter, the operating conditions will

depend on the load wiring length, inverter carrier frequency, basic

frequency, and load conditions. Error will occur in the operating

values of the overload elements. It is recommended to test

operation before using the K2CM.

Model Number Structure

■ Model Number Legend

1. Model

K2CM: Motor relay

2. Mounting style

None: Surface-mounting, integrated type

3. Operating time characteristics

None: Inverse type

Q:

Instantaneous type

4. Supply voltage of control circuit

1:

100/110/120 VAC

2:

200/220/240 VAC

4:

400/440 VAC

5. Current setting range

LS:

2 to 8 A

L:

8 to 26 A

M:

20 to 65 A

H:

50 to 160 A

6. Operating time

None:

×1 (2 to 10 s)/ ×4 (8 to 40 s) Switchable

7. Resetting method

None: Manual reset

A:

Automatic reset

8. Reverse-phase detection type

None: Current reverse-phase detection

V:

Voltage reverse-phase detection

Ordering Information

■ List of Models

Voltage Reverse-phase Detection Models

12 3 4

5 6

K2CM-

@@@-@@

Time specification

Inverse type

Instantaneous type

Resetting

method

Current setting range

8 to 26 A

20 to 65 A

50 to 160 A

8 to 26 A

20 to 65 A

50 to 160 A

Operating voltage

Manual

200/220/240 VAC

K2CM-2LV

K2CM-2MV

K2CM-2HV

K2CM-Q2LV

K2CM-Q2MV

K2CM-Q2HV

Automatic 200/220/240 VAC

K2CM-2LAV

K2CM-2MAV

K2CM-2HAV

K2CM-Q2LAV

K2CM-Q2MAV

K2CM-Q2HAV