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Demand more from low voltage systems

Product News Monday, July 16, 2018: Schneider Electric South Africa (Pty) Ltd.

Schneider Electric has an innovative high breaking capacity for the Compact NSX range of moulded case circuit breakers (MCCBs), offering users more from their LV infrastructure and a cost-effective alternative to fuses over the long term.

Companies involved in the exploration, extraction and processing of natural resources look for the smartest, safest, most cost-effective way to run their operations. Opportunities to lower capital costs and operating expenses are often buried within a site’s low voltage (LV) power distribution networks.

Smart alternative to high-power fuses

The high breaking capacity of the Compact NSX circuit breakers will withstand demanding fault conditions, staying reliably in service after three faults. After a fault is cleared, remote control reclosing functionality puts circuits back into operation quickly, enabling maximum operational continuity. Discrimination and coordination will isolate faults, to avoid system-wide outages. Over the long term, this reduces the cost impacts of downtime and avoids the labour and parts costs associated with fuse replacement, giving users a total-cost-of-ownership advantage.

Critical, high demand power distribution systems, operating at 440/480 V or lower, need protection against extreme short-circuit fault currents. Such faults occur in systems with multiple paralleled power sources or large numbers of motor loads. The higher breaking capacity of the Compact NSX range can be used to provide better protection and higher continuity.

Best-in-class protection

• Compact NSX remains the highest-rated breaking capacity in its class of 100 kA for 500-690 V systems
• Industry-leading breaking capacity of 200 kA at 440 V
• Type II coordination for motor applications
• Extended breaking capacity available across complete Compact NSX range from 100 to 630 A
• Extended breaking capacity comes in the same space-saving frame sizes as all other Compact NSX models

Class-leading performance enables the entire Compact NSX range to meet the requirements of applications that once mandated costlier, bulkier protection devices. Users can realise significant cost savings by safely running higher power densities on LV platforms or benefitting from the higher energy efficiency and reduced space requirements of a 690 V system.