The CKM-10 phase sequence sensor is used to protect devices powered by a three-phase network (e.g., motors) from damage in the event of phase voltage loss, phase voltage asymmetry, or incorrect phase sequence.

The asymmetry threshold value can be set by the user using a potentiometer.

The sensor also protects against symmetric voltage drops by deactivating the relay if the voltage in any phase falls below 150 V (regardless of the level of asymmetry).

The device is powered by any phase, meaning that the presence of voltage in one phase is sufficient for it to be fully operational.

The adjustable deactivation delay and voltage hysteresis make the sensor resistant to short-term voltage fluctuations.