So you just spent three hours removing and replacing a motor that drives the feed to a robotic welder. You connected the leads exactly the way they were before you disconnected them. You properly ...

At one end, the handheld EPM3 phase-sequence and motor-rotation tester can check three-phase, 100 to 600-Vac, 45 to 70-Hz inputs for open phase and phase sequence. At its other end, the meter uses an ...

Using a rotation tester when installing a motor saves time and prevents problems such as driving the load backward. In some cases, you must get the motor rotation correct or massive damage will occur.