RCD parameter meters are devices used to measure the operating parameters of consumer protective shutdown devices from the power supply when the permissible value is exceeded. With the help of such devices, they check the reliability of the operation of additional devices that protect people from electric shock. Various models operate on 220/380 or 230/400 V.
Due to the presence of an internal power supply, the safety devices are checked both at power-up and before they are installed. The limiting resistor protects the RCD power supply from overheating or failure.
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Products from the group «RCD meters» you can buy wholesale and retail.