Electrical fields are triggered by the voltages themselves, even if the electrical loads are switched off and a current does not flow. Given this fact, specialists recommend mains disconnection relays (often called ‘demand switches’) as the first and most important technical means to reduce electrical and magnetic alternating fields.

The SCHRACK NAK 16/3 mains disconnection relay was the first ever “demand switch” to be certified with the VDE mark which demands adherence to the strictest possible safety requirements.

VDE registration number: 40000677

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