Klockner Moeller Electric Parts from KlocknerMoeller.net
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Circuit-breakers
Undervoltage releases |
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| Undervoltage release U (Q1) |
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An electromagnet which actuates a tripping mechanism upon interruption of the voltage. The system is in the rest position
when energized. Actuation is produced by a normally closed contact. Undervoltage releases are always designed for uninterrupted operation.
These are the ideal tripping elements for totally reliable interlocking tasks (e.g. Emergency-Stop).
Undervoltage releases trip the circuit-breaker when the power fails in
order, for example, to prevent motors from restarting automatically. They are also suitable for very reliable interlocking and remote
switching off since disconnection always occurs in the event of a fault (e.g. wire breakage in the control circuit). The circuit-breakers cannot
be closed when the undervoltage releases are de-energized. |
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