The LC 013 is used as a signal contact to monitor fans or filter fans. It can be connected to monitoring systems or can directly switch alarm devices, such as LED's or signal lamps. Loads with capacities exceeding the indicated switching capacity must be switched via a relay, e.g. electronic relay SM 010. The airflow monitor with NC contact closes upon loss of air movement, indicating fan failure (e.g. red signal lamp). The NO contact closes when fan is in operation and indicates fan is operating correctly.
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