PRM-4 Phase Sequence and Motor Rotation Tester
Ensure electrical equipment is correctly and safely connected
This product is no longer available. Contact us at 800-567-8686 for alternative solutions.
Phase sequence testing is crucial for many three-phase loads. Improperly connected motors can result in reverse rotation, which can damage the equipment powered by the motor. Ensure electrical equipment is correctly and safely connected with Amprobe's PRM-4 Phase Sequence and Motor Rotation Tester.
The PRM-4 comes with test leads (red, green, and blue), alligator clips (TL-PRM-4), one (1) 9 V battery, user's manual, and a soft vinyl case.
![]()
• Identifies 3-phase sequence and open phase check
• Motor shaft rotation indication protected by CAT III circuitry
• 3 phase to phase input voltage, 100 V AC to 600 V AC max
• Supplied with three CAT III rated color coded large alligator clips and test leads
• 45 Hz - 70 Hz frequency


