Description
Product Overview
The UNI-T UT261B Phase Sequence and Motor Rotation Indicator is a portable electrical testing instrument for checking phase orientation and motor rotation in electrical installations. It helps technicians verify three-phase wiring sequence, detect a missing phase, and identify the direction of a motor’s rotating magnetic field.
Its LED indicators provide visual feedback during testing. The UT261B also supports non-contact motor rotation checks, making it useful for electrical installation, commissioning, troubleshooting, and maintenance work.
Test & Measurement Tools and Solutions
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Key Features
– Phase sequence testing: Identifies the phase sequence in three-phase electrical systems.
– Missing phase indication: Helps detect a missing phase during testing.
– Motor rotation indication: Indicates clockwise or counter-clockwise motor rotation.
– LED indicators: Displays phase and rotation test results.
– Non-contact motor testing: Checks motor rotation by positioning the instrument parallel to the motor shaft, following the manufacturer’s instructions.
– Portable design: Compact red-and-grey housing for field use.
– Battery powered: Uses a 9V 6F22 battery.
– Safety rating: CAT III 600V and IP40 protection rating.
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Technical Specifications
Specification Details
Brand UNI-T
Model UT261B
Product type Phase sequence and motor rotation indicator
AC voltage range 90–600V
Frequency range 15–400Hz
Working current Less than 3mA
Phase sequence indication LED
Missing phase indication LED
Motor rotation indication LED
Power supply 9V 6F22 battery
Safety category CAT III 600V
Ingress protection IP40
Product colour Red and grey
Manufacturer-listed weight Approximately 180g
Manufacturer-listed dimensions 123 × 71 × 29mm
Typical supplied accessories Battery and three test leads with alligator clips
Specifications are based on UNI-T’s published UT261 series information. Confirm the supplied accessories and package contents with the seller before ordering.
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Applications
The UNI-T UT261B can be used for:
– Three-phase electrical installation and commissioning
– Phase sequence verification before connecting rotating equipment
– Motor rotation direction checks
– Electrical maintenance and troubleshooting
– Industrial machinery servicing
– Electrical panel and power distribution maintenance
– Field testing by electricians and industrial technicians
Buyer Guidance
Choose the UT261B when you need phase sequence, missing phase, and motor rotation indication in one handheld instrument. Follow the manufacturer’s safety instructions when testing live electrical circuits. The manufacturer’s manual also cautions that motor rotation indication may not work normally with motors controlled by frequency converters.
Manuals+
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UAE Supply and Quotation
Dynavation Star Electrical Fittings Trading LLC supplies electrical testing instruments and industrial products for buyers across the UAE. For the UNI-T UT261B, contact our team to confirm current price, availability, and quotation requirements.
Need the UNI-T UT261B in the UAE? Contact Dynavation Star on WhatsApp for a quotation and product availability.

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