PKZ2 – release - Voltage releases

Voltage releases [t-head1-first]

Undervoltage release U [t-head3]

Undervoltage releases trip the circuit-breaker in the event of a power failure and prevent restarting when the power returns. Three versions are available:

Non-delayed,

With/without early-make auxiliary contact,

With 200 ms dropout delay.

Undervoltage releases which switch off without delay are suitable for Emergency-Stop circuits.

The undervoltage release can be energized early by an additional link (see circuit diagram).

Undervoltage release with a 200 ms dropout delay.

Shunt release A [t-head3]


Shunt releases trip the circuit-breaker when a voltage is applied. These are an economic option for switching off remotely. Shunt releases are suitable for AC and DC, and one version covers a wide voltage range.