SS25 Single-pole surge arrester (non-pluggable) Class 2 arrester for installation in the LPZ 0B - 1 Lightning Protection Zone in accordance with lEC 61643-1   Rated Voltage: 275VAC Maximum continuous operating voltage: 350VDC Mounting on: 25mm DIN rail Installation width: 18mm Tested to SABS/IEC 61643-1 High energy zinc oxide varistor Fault disconnect device Fault indication Fast response time Compact design