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Monitoring relays

Here you will find a large selection Monitoring relays for the protection of plant and machinery.

Controller type

Operating mode

Product information

Current monitoring relay are used to monitor the current and protect machines and systems from over- or undercurrent. When a set limit value is reached, the protective shutdown takes place. Voltage monitoring relay monitor the voltage in 1-phase and 3-phase systems. They are used, for example, to protect electrical controls, motors and control systems from overvoltage or undervoltage.