The power limitation relay OM-110 is designed for continuous monitoring of active or total power of a single-phase load.

The measurable power range is from 0 to 20 kW or from 0 to 20 kVA.

The OM-110 disconnects the load in case the user-defined level of maximum permissible power consumption is exceeded (up to a specified disconnection time) and then automatically reconnects (with a specified reconnection delay time or with blocking of reconnection).

The front panel of the device is equipped with potentiometers and dip switches that allow the user to set:

• the level of maximum permissible power
• the relay response time
• the delay time for automatic reconnection (AR)

The measurement of consumed power is conducted without breaking the electrical circuit using a current sensor built into the device.

The OM-110 relay can be used as:

• a digital wattmeter (measuring active or total power)
• a power consumption limitation relay
• Power to the OM-110 is supplied from voltage measurement circuits