Описание

Function Frequency Relay
1- / 3-phase 1
Standard measuring range 50, 60 Hz
Measuring range max. 50/60 Hz
Output contacts 1 w
Operate delay +
Auxiliary voltage required +
Enclosure design Schaltschrank
Width 17,5 mm
Type SK 9143
According to IEC/EN 60 255, DIN VDE 0435-303 Monitoring of overfrequency and underfrequency (selectable)in A.C. power systems Without auxiliary voltage Selection of frequency range for 50 or 60 Hz systems Adjustable response value Adjustable hysteresis De-energized on trip (output relay not activated in case of error) LED indicators for measuring voltage and contact position 1 changeover contact As option energized on trip (output relay activated in case of error) Devices available in 2 enclosure versions:IK 9143: depth 58 mm, with terminals at the bottom forinstallation systems and industrial distributionsystems according to DIN 43 880SK 9143: depth 98 mm, with terminals at the top for cabinetswith mounting plate and cable duct 17.5 mm width''