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Motor-protective circuit-breaker
PKZ2 – release |
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| Voltage releases |
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| Undervoltage release U |
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.
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Shunt release A
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.
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