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HIOKI Phase Sequence Testers – Safe Testing in Three-Phase Systems

HIOKI PD3259-50 non-contact phase detector contactless voltage2 1

How do non-contact phase sequence testers improve safety?

Phase sequence testers – also referred to as phase rotation testers, phase indicators, or phase rotation meters – are essential tools for electricians, service technicians, and commissioning engineers. They verify the correct phase order, detect wiring errors, and help prevent equipment damage in three-phase networks.

All HIOKI phase sequence testers use non-contact voltage clamps. This measurement method allows measurements to be performed directly on insulated conductors without exposing live parts. Phase checks therefore become faster, safer, and possible even in situations where direct electrical contact would normally require higher qualifications or additional protective measures.

HIOKI PD3259-90 non-contact phase detector true voltage z3210 included HIOKI PD3259-90 non-contact phase detector true voltage cat iv 600v
PD3259-90
HIKI PD3259-90 - Safe Non-Contact Phase Rotation Tester with True Voltage Measurement
Non-contact digital phase rotation tester with true voltage measurement for safe phase sequence testing in electrical installations. HIOKI PD3259-90 available now.

€1,258.00*
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HIOKI PD3259-50 non-contact phase detector phase identification HIOKI PD3259-50 non-contact phase detector live wire detection
PD3259-50
HIOKI PD3259-50 - Non-Contact Digital Phase Rotation Tester with Integrated Voltmeter
Non-contact digital phase rotation tester with integrated voltmeter for safe phase sequence and voltage checks in electrical systems. HIOKI PD3259-50 available now.

€1,198.00*
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PD3129 - Non-Contact Phase Rotation Tester for Three-Phase Systems PD3129 - Non-Contact Phase Rotation Tester for Three-Phase Systems
PD3129
PD3129 - Non-Contact Phase Rotation Tester for Three-Phase Systems
Phase sequence tester with non-contact voltage clips for phase order and live-line checks on three-phase circuits, fits insulated conductors with 2.4 mm to 17 mm diameter, CAT III 600 V

€238.00*
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PD3129-10 - Non-Contact Phase Rotation Tester for Three-Phase Systems PD3129-10 - Non-Contact Phase Rotation Tester for Three-Phase Systems
PD3129-10
PD3129-10 - Non-Contact Phase Rotation Tester for Three-Phase Systems
Phase sequence tester with non-contact voltage clamps for phase sequence and live-line checks on three-phase circuits, fits insulated conductors with 7 mm to 40 mm diameter, CAT IV 600 V, CAT III 1000 V

€258.00*
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Product Comparison: Select your HIOKI Phase Sequence Detector

HIOKI offers a complete range from traditional non-contact testers for residential and small commercial sites to advanced digital meters with true voltage measurement and Bluetooth connectivity for industrial environments.
Comparison of non-contact phase rotation testers
Feature PD3129
Non-contact Phase Detector
(600 V) 		PD3129-10
Non-contact Phase Detector
(1000 V) 		PD3259-50
Non-Contact Digital
Phase Detector 		PD3259-90
Non-Contact Digital
Phase Detector (incl. Bluetooth)
Voltage range 70 – 600 V AC 70 – 1000 V AC 90 – 520 V AC 90 – 520 V AC
Safety rating CAT III 600 V CAT IV 600 V / CAT III 1000 V CAT IV 600 V, IP54 (Body) CAT IV 600 V, IP54 (Body)
Conductor diameter 2.4 – 17 mm 7 – 40 mm 6 – 30 mm 6 – 30 mm
Functions Phase sequence, rotation, live-line check Phase sequence, rotation, live-line check Phase sequence, true line-to-line voltage, frequency, missing-phase detection Phase sequence, true line-to-line voltage, frequency, missing-phase detection
Voltmeter included No No Yes Yes
Bluetooth No No Optional (Z3210) Included (Z3210)
Made in Japan – Built for Lasting Precision 

All HIOKI phase sequence testers are designed in Japan and manufactured at our own R&D center and factories, ensuring the highest standards of precision, reliability, and lasting accuracy trusted by technicians worldwide.