PD3259-50 - Non-Contact Digital Phase Detector with Integrated Voltmeter

Digital phase detector with non-contact voltage clamps for safe one-step checks of phase sequence, line-to-line voltage, frequency, and missing-phase detection; CAT IV 600 V, IP54, optional Bluetooth connectivity (Z3210 required)

Product information PD3259-50 - Non-Contact Digital Phase Detector with Integrated Voltmeter

Banner Specs 
  • 90 to 520 V AC measurement range 
  • Non-contact voltage detection clamps (6–30 mm cable diameter) 
  • CAT IV 600 V safety rating
  • IP54 dust/water resistant housing 

USPs 
  • Safe, non-contact voltage detection
  • Phase sequence detection with true line-to-line voltage measurement 

Applications 
  • Installation and maintenance of three-phase wiring and equipment 
  • Troubleshooting phase errors, supply interruptions, and missing phases
  • Verification of EV charging stations and infrastructure 
  • Commissioning and inspection of machinery and plant systems 

In detail:
The PD3259-50 is a compact digital phase detector for three-phase systems. Unlike basic devices that only indicate phase sequence, it also measures true line-to-line voltages, frequency, and missing phases. This provides technicians with reliable data to quickly identify supply issues and prevent potential equipment damage. 

Faster, safer testing with non-contact clamps 

The non-contact voltage clamps simply clip around insulated conductors, eliminating the need to expose live parts. This makes phase and voltage checks quicker, safer, and possible even in situations where direct electrical contact with the conductor would normally require higher qualifications or additional protective measures.

Rugged and field-ready, the instrument is rated CAT IV 600 V and IP54 for operation in demanding environments. For documentation and analysis, the optional Z3210 Bluetooth adapter can be added to connect the PD3259-50 to smart devices or a PC. Measurements can then be logged via HIOKI’s GENNECT Cross app or transferred directly to Excel using the instrument’s HID (Human Interface Device) function. 

The PD3259-50 was designed in Japan and is manufactured at HIOKI’s own factories in Nagano Prefecture, ensuring the highest standards of lasting precision, reliability, and quality.
  • PD3259-50 Digital Phase Detector
  • C0203 Carrying Case
  • 4 × LR6 alkaline batteries 
  • Instruction manual / Safety notes
  • Spiral tubes (black) 
  • Color-coded cable markers (white, red, blue, yellow; 2 each)

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