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A VDE 0160 pulse is a high-energy voltage pulse that can occur in the mains voltage of industrial networks (e.g. when shutting down large loads or after short circuit currents have subsided).

Valve-regulated lead acid (VRLA) batteries are sealed batteries fitted with a safety valve that allows the gas produced by overcharging or a cell fault to escape.

The efficiency value is the ratio of the output power to the input power of a power supply. The difference between the input and output power is converted as power losses into heat.

These capacitors are approved for suppressing radio interference and are installed between the phase and the neutral wire or between the phases. They provide protection against differential mode interference.

These capacitors are approved for suppressing radio interference and are installed between the phase(s) and the housing or protective earth wire or between the neutral wire and the housing or protective earth wire. They provide protection against common mode interference.