SURGE SUPPRESSOR DEVICE

摘要

Surge suppressor device (10) for connection into a circuit, comprising a transient suppressor (14) and indicator means (16, 18). The transient suppressor (14) limits transient voltages in the circuit. The indicator (18) provides indication that a transient voltage condition above a selected voltage level has occurred in the circuit. A current controller (26), which may be a zener diode (Z1), prevents passage of current through the indicator (18) when circuit voltage conditions are below the selected voltage level. A reverse polarity response arrangement may be provided and may comprise a fuse (28) and a diode (D2). An extended transient indication means may also be provided to extend the "ON" time of the indicator when a transient voltage condition above the selected voltage level occurs in the circuit. The surge suppressor device may be used in the electrical systems of motor vehicles, marine craft and the like.