Description

NSP Surge Diverter
The NSP3-50-275-N provides all mode protection (L-N and N-PE) in accordance with AS3000 for three phase sub-boards remote from the MSB. It is rated for both 8/20μs and 10/350μs impulses making it suitable for use in moderately high exposure locations, for example in a sub-board fed by overhead conductors. It is also suitable for main switchboard protection in non-MEN (TT) distribution systems and can be used in MEN systems although the N-PE protection may be redundant due to the presence of the MEN link.

Pluggable Top
The Novaris NSP range features pluggable modules, colour coded orange for L-N and black for N-PE, where applicable. Display and Alarm The NSP range features a display window with green indicating operational and red indicating that replacement is necessary. A voltage free changeover contact allows for external alarm indication.

Overcurrent Protection
The NSP range requires external overcurrent protection as per AS3000. A 32A circuit breaker or fuse is recommended. Alternatively, the NSP could be paralleled with an existing power circuit. Since it draws negligible current under normal conditions it will not affect the circuit loading. A Novaris surge circuit breaker (SCB) may also be used.