Some electrical devices such as computers, electronic deivces and single phase rectifiers draw high levels of Third Harmonic Currents.

The third harmonic current causes some problems in the distribution system. These are:

Unexpected equipment failure.
Overheating of the neutral line due to the excessive third harmonic current.
Additional losses in the system.
Increased neutral to ground voltage.
Communication and operation problems in electronic equipment.

A simple and easy to use solution to the third harmonic problem is the Inforise Third Harmonic Filter. The filter reduces the amount of the third harmonic current flowing in the circuit by up to 90%.

The features of the filter are:

Filtering of the third harmonic current by a high level
Special box design. Can be mounted onto the wall.
Special terminals allowing easy connection.
Built-in MCB for protection against high currents and short circuits.
Manual by-pass system.
Optional automatic by-pass systems for protection against overtemperature.