EMR4-R insulation monitoring relay [t-head2]

EN 60204 “Safety of machines” provides increased operational safety by monitoring the control voltage circuit for earth-fault using an insulation monitor. This is the main application for the EMR4-R. There are similar requirements in medical applications.

An earth-fault is signalled via a changeover contact so that a fault can be cleared without expensive down time.

The device has a selectable fault memory so that the fault must be acknowledged after its removal. A Test button allows the device to be checked for correct operation at any time.

AC or DC control voltage [t-head3]

Devices for AC and for DC are available, which cover the total control voltage range. The DC device has a multi-voltage source and can therefore also be used for AC.