La description

Function Frequency Relay
1- / 3-phase 1
Standard measuring range 30 ... 90 Hz
Measuring range max. 600 Hz
Output contacts 1 w, 2 w
Operate delay +
Auxiliary voltage required +
Enclosure design Schaltschrank
Width 45 mm
Type AA 9837
According IEC/EN 60255, DIN VDE 0435-303 Detection of under- or overfrequency Adjustable response value Optionally 1 or 2 changeover contacts Width 45 mm''