SPD,Earth,Invalidation display-----PDU function modules
Product Detailed
Current and Voltage display
current display
voltage display
SPD function show activated green LED when the lightning protection circuit is in normal working status.Earth indicator is for an automatic detection of earth wire, and it show actived red LED when there is no ground connection available.Invalidation Display will activate the LED when the function module is fails.
You can combinative any modules including air switch, surge excluder(SPD) , over-load protector, digital current and voltage display, Double-break switch , or Network Surge excluder etc.
