Over-voltage accessory - MZ209

In the low-power distribution system, when harmonics is produced in the power grid, zero line is missed, and the wirs are connected wrong (eg. for line voltage, connected from phase voltage 400V error on 230V), it will be sustained over-voltage.

This sustained over-voltage is different from the transient over-voltage caused by surges, and it will lead to:

• equipment damage.
  
• equipment overheated, which would reduce the life of the product.
  
• the potential jeopardy of fire.
  
• lower security for the user.
  

Regarding on this, we have designed a new type of over-voltage trip accessory - MZ209, when the over-voltage appers in the power grid, it will automatically enable the miniature circuit breakers trip.