Fluke PRM-5-EUR Phase Rotation Indicator, 40-600 V AC, 15-400 Hz, CAT III 600 V 4375961

Operating from 40 V to 600 V AC across 15 Hz to 400 Hz, this phase rotation indicator verifies clockwise or counter-clockwise rotation on three-phase systems without batteries—it draws power directly from the circuit under test.

Overview

The Fluke PRM-5-EUR is a compact phase rotation indicator built for electricians and maintenance technicians. It determines phase rotation direction and confirms phase presence using LED indicators. The unit is powered by the measured circuit, eliminating battery concerns. Integrated test leads with alligator clips allow direct connection to live conductors.

What stands out

• Wide voltage range: 40 V to 600 V AC
• Frequency range: 15 Hz to 400 Hz
• LED indication for phase presence and rotation direction
• No batteries required—powered by the circuit under test
• Safety rated CAT III 600 V, CAT IV 300 V
• Durable ABS housing with IP40 protection

Technical details

• Measurement function: phase rotation indication
• Operating voltage: 40 V to 600 V AC
• Frequency range: 15 Hz to 400 Hz
• Phase rotation indication: clockwise (CW) / counter-clockwise (CCW)
• Phase presence indication: yes, via LED indicators
• Display type: LED indicators (3 for phase presence, 2 for rotation direction)
• Safety rating: CAT III 600 V, CAT IV 300 V
• Power source: powered by the measured circuit (no batteries required)
• Operating temperature: 0 °C to 40 °C
• Storage temperature: -10 °C to 50 °C
• Relative humidity: 0% to 80% RH (non-condensing)
• Operating altitude: up to 2000 m
• Protection class: IP40
• Test lead type: integrated test leads with alligator clips
• Number of phases: 3-phase systems
• Housing material: durable ABS plastic
• Compliance: CE, EN 61010-1, EN 61010-031
• Included accessories: test leads, alligator clips, soft carrying case

Our verdict

A reliable, no-battery phase rotation indicator with clear LED indication and robust safety ratings, suitable for industrial and commercial electrical testing.