Uni-T UT261B Phase Sequence Tester

The Uni-T UT261B is a professional phase sequence tester designed for electricians and maintenance technicians to quickly and accurately determine the phase rotation of three-phase power systems. This compact and robust instrument ensures safe and reliable operation, making it an essential tool for industrial, commercial, and residential electrical installations.

Advantages

• Clear LED indication for phase sequence (clockwise or counter-clockwise) and open phase detection.
• No batteries required – powered directly by the tested circuit.
• Durable housing with integrated test leads for easy handling.
• Compact design for portability and storage.
• Suitable for a wide voltage range (up to 600V AC).

Suitable for

• Electricians and electrical engineers
• Maintenance and service technicians
• Industrial and commercial electrical systems
• Motor and generator installation and troubleshooting
• Three-phase power distribution verification

Key specifications

• Brand: Uni-T
• Model: UT261B
• Product type: Phase sequence tester
• Voltage range: Up to 600V AC
• Frequency range: 15Hz – 400Hz
• Indication: LED (clockwise, counter-clockwise, open phase)
• Power supply: From tested circuit (no battery)
• Safety rating: CAT III 600V
• Colour: Red and grey
• Weight: Approx. 200g
• Dimensions: 125 x 70 x 35 mm

Recommendations

Always verify the phase sequence before connecting motors or other sensitive equipment. The UT261B is a reliable tool for ensuring correct phase rotation, preventing damage and downtime. For best results, use with appropriate personal protective equipment.