HIOKI CM3286-50 AC Clamp Power Meter | Single-phase 360 kW, AC 600 A／600 V, true RMS, phase rotation detection, optional Z3210 Bluetooth

Overview

In automated factories, commercial buildings and high-voltage substations, unbalanced motor loads, low power factor (PF) and reversed three-phase rotation are three hidden causes of equipment overheating, tripping and high electricity bills. The genuine authorized HIOKI (Japan) product CM3286-50 AC clamp power meter is a high-end clamp power meter designed for field electrical engineers, plant maintenance teams and electrical safety technicians.

It provides direct single-phase and balanced three-phase power measurement, displaying volt-amperes (VA), vars (VAR), watts (W) and power factor without manual calculation. It also integrates phase rotation detection (Phase Detection), covering voltage, current, power and three-phase rotation checks in one instrument. With the Z3210 Bluetooth wireless adapter (optional), data can be written automatically into Excel in real time and harmonics up to the 30th can be viewed in GENNECT Cross, making it well suited to preventive maintenance and ESG energy-saving diagnostics in the field.

Key Technical Specifications

Simplified Three-Phase Power Measurement and Phase Rotation Detection

• Single-phase／balanced three-phase power in one instrument: Measuring range 0.005 kW to 360.0 kW, covering small loads up to high-power motors, with automatic calculation of power factor (PF) and leading/lagging phase.
• Built-in phase rotation detection: No separate phase rotation meter is needed; using the clamp jaw and test lead, the display shows whether a three-phase circuit is in positive (clockwise) or reversed (counterclockwise) sequence, helping prevent motors from running backwards and burning out.
• Sensitive AC current and voltage measurement: True RMS (TRMS) measurement of AC 0.060 A to 600.0 A and AC 80.0 V to 600.0 V.

Bluetooth Data Management and Safety

• Z3210 Bluetooth wireless expansion (optional): Supports automatic entry of data into Excel sheets (Excel Direct Input), eliminating manual transcription and typing in the field and the associated recording errors.
• GENNECT Cross app: With the optional Z3210 installed, harmonics up to the 30th can be viewed on a smartphone or tablet.
• CAT IV 600V / CAT III 1000V safety rating: Overvoltage protection guards against sudden surges in the field to protect the operator.

Applications

• Plant facilities and ESG energy audits: Power consumption assessment of motors and transformers, measurement before power factor (PF) correction, load balance diagnosis.
• Equipment installation and maintenance acceptance: Confirming rotation direction (phase sequence) of newly installed three-phase motors; current/power checks on chillers and pumps.
• Commercial buildings and electrical safety: Spot checks of load on main distribution panels; troubleshooting abnormal voltage/current waveforms.