Clipsal Max9 RCBO Type A 240 VAC 16 Amp 6000 A 1 Pole + N 30 mA IP20 2 Module 36 mm

Clipsal switchboard mounted combination MCBs and RCDs fall into two main categories - electro mechanical and electronic. The electro mechanical devices derive their 'action energy' from actual leakage (residual) current. They work on an electromagnetic principle. A toroidal transformer is used to detect the magnetic fields createdby current flowing in the Active and Neutral wires of the protected circuit, which pass through the RCD. Taking into account the magnitude and direction of these currents, under normal circuit conditions the vector sum of the currents (known as the residual current) is effectively zero and the magnetic fields cancel. Should the condition occur where a current flows from an Active or Neutral wire to Earth, the residual current will not be zero and the magnetic field will establish a tripping signal to disconnect the protected circuit. These devices are not voltage dependant.