Phase synchronization measurement (frequency and phase equality) between two single phase or three-phase alternating current systems, or between system and generator. Indicates the synchronizing moment when frequency and phase of two sources have the same values. Then, pointer will be on the upper center of scale. LED display is available on request. The nominal mark is S.

Specification:
Consumption: 3VA
Supply voltage: 380Vac+20%-40% standard.