Check the phase sequence of 3-phase supplies to ensure the right direction of rotation for motors and correct operation of other phase-dependent equipment.
Easily read the digital display on these testers to determine the phase sequence of 3-phase power sources and to help ensure that your motor is wired for correct rotation.
The analog display on these testers indicates the rotation direction of 3-phase motors and the phase sequence of supplies.
Clamp the large, fully insulated current-sensing clamps on 3-phase system wires to determine the phase sequence. Electrical contact is not required.