This CABAC surge protected power board is equipped with a circuit breaker, which will safely shut off all power in the event of overloading. After eliminating the overload it can be reset by pressing the circuit breaker reset button. A power surge or spike can cause costly or irreparable damage to your electrical equipment. The CABAC surge protected power board has built in devices (across neutral + active) which will absorb these spikes making it suitable for protecting your valuable dj equipment and computer hardware. PLEASE NOTE: This unit is not a lighting arrester and may not protect your equipment if lighting directly strikes the house, electrical services or antenna. This power surge protector will not offer protection if there is a sustained over-voltage caused by a fault in the mains power distribution system. AU ONLY