WIELAND ELECTRIC wietap surge arrester modules for control cabinet main power supply protection (IEC Class II, Category B) include modules rated for 150V, 275V, 320V, 385V, 440V and 600V; as well as modules for sub-distribution (IEC Class III, Category A) rated for 30V and 150V. Devices for photovoltaic systems are also available in 600Vdc and 1000Vdc versions and for grounded and ungrounded systems. Modules provide a high discharge capacity by using an efficient zinc oxide varistor and discharger combination. They are also vibration- and shock-tested according to EN 60068-2.
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