Surge arrestors for DC photovoltaic applications

March 2012 Electrical Power & Protection

The rapidly growing PV industry has placed exceptional demands on the available SPD products intended to protect systems components such as inverters, arrays, or combiner box components from the effects of lightning-caused surges and transients.

Responding to this demand, Dehn has introduced new products specifically designed to function under this DC voltage environment. The new DEHNguard M YPV and PV-SCI incorporate a switched fused circuit in parallel to the MOV discharge circuit, permitting arc free disconnection.

Dehn has recently expanded its initial product offering to include a broader range of voltages and product configuration. These unique SPD products are now available for 150, 600, 1000, 1200 and 1500 VDC applications and configured in both a three-pole configuration for floating systems and a two-pole design for grounded systems.

For more information contact Paul van As, Surgetek, +27 (0)11 792 1303, [email protected], www.surgetek.co.za

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