Phase Sequence and Motor Rotation Indicator UT261A UNI-T
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The UT261A Phase Sequence Detector is designed to check the phase order in three-phase motors, ensuring correct rotation direction. By connecting the three supplied test leads to L1, L2, L3 and the other ends to motor wires, the LCD display shows clockwise or counterclockwise rotation. It operates without batteries, powered inductively from the measured circuit, and is suitable for use in electrical meter cabinets.
Features
- Three input terminals for phase connection
- Battery-free, inductively powered from measured circuit
- Category III, 600V, suitable for meter cabinets
- LCD display showing rotation direction
- Voltage measurement: 90–600V AC, 15–400 Hz
Technical Specs
- Phase currents: up to 1 mA
- Standards: IEC61010 / EN61010, EIC61557-7
- Dimensions: 123 × 71 × 29 mm
- Weight: 160 g
- Operating temp: 0–40 °C (32–104 °F)
- Storage temp: 0–50 °C (32–122 °F)
- Max altitude: 2000 m
- Humidity: ≤95%
- Pollution class: 2
- IP rating: IP40
