Hioki PD3259-50 Digital Phase Detector

Hioki PD3259-50 Phase Detector

The PD3259-50 combines phase sequence testing and voltage detection in a single compact instrument — eliminating the need to carry two separate tools for motor commissioning and panel work. Correct phase sequence is critical for three-phase motor operation; reversed phases cause motors to run backwards, potentially damaging machinery and processes.

Key Features

• Phase sequence detection: correct (forward) or reversed rotation indication
• Phase voltage measurement 90V to 600V AC
• Continuity test between phases
• Open phase detection
• CAT IV 600V safety rating
• LED and buzzer indication for clear results
• Compact and battery-free design

Applications

Three-phase motor commissioning, panel and switchgear installation, generator synchronisation, pump and compressor commissioning and any application where correct phase sequence must be verified before energising three-phase equipment. Standard tool for electrical contractors and commissioning engineers across India.