The wietap surge arrester modules for control cabinet main power supply protection (IEC Class II, Category B) include modules rated for 150, 275, 320, 385, 440 and 600 V, as well as modules for sub-distribution (IEC Class III, Category A) rated for 30 and 150 V. Surge protection modules for photovoltaic systems are available in 600 and 1000 Vdc versions and for grounded and ungrounded systems. They are vibration- and shock-tested according to EN 60068-2. The surge arresters are suitable for an operating temperature range from -40 to 85 °C, are cURus-certified and comply with UL1449 3rd edition.