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Phase Sequence Indicators (Contact Type)
ST-850 - Standard Electric Works Co., Ltd (SEW)
● Two functions in one unit: open phase and phase sequence detection.● Lamps let you determine at-a-glance if phase is open.● Large size alligator clips for easy clipping onto switch-boards terminals.● Checks a wide range of 3-phase power sources.● Special test leads length are available on request.● Push button switch is designed to minimize damage due to negligence.