Dold Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail - RK9871.71 3/N AC400/230V 50/60Hz
Ensure safety with Dold's 3-phase voltage monitoring relay, detecting undervoltage effectively.
Manufacturer part number: RK9871.71 3/N AC400/230V 50/60Hz
Availability: Out of stock
Only Ships to: France, Monaco For shipping outside these regions, please contact customer support.
Detection of undervoltage in 3-phase systems Without separately auxiliary voltage (internal supply from all 3 phases) LED indication for operation voltage and contact position De-energised on trip RK 9871.71: 1 changeover contact RK 9871.72: 2 changeover contacts With fixed time delay of 0.5s for fault indication With fixed time delay of 1min for reset With fixed response value at AC 195.5V As option with test-button for function control Width 17,5 mm Advantages / Customer benefit Higher safety in buildings Application Monitoring of undervoltage in 3 phase voltage systems and switch over to emergency supply
