- The 501 level relay with electrodes are most commonly used as a simple safety device providing level alarms in case of water leaking on floors with no constant monitoring.
- 501 provides an alarm signal based on the conductivity in the liquid thereby securing the important electronics or non-submersible pumps.
- Some waste water plant also uses 501 as an additional security device providing alarm signals or starting pumps based on the 2-4 electrodes in individually adapted lengths
|Supply||115/230 V AC ±10%, app. 4VA|
|Sensitivity||Min.: 100 mA Max.: 1mA|
|Relay Output||Voltage-free switch, max. 250V, 4A resistive, 1A inductive|