Accurate Phase Detection – Quickly identifies phase sequence, open phase, and motor rotation direction.
User-Friendly Design – Clear LED indicators and buzzer alerts for easy interpretation.
Durable & Portable – Compact, lightweight body with strong test leads for reliable field use.
Wide Application – Ideal for electricians, technicians, and engineers working with three-phase systems.
Uni-T UT261b Phase Sequence And Motor Indicator is a specialized, industrial-grade instrument designed to safely and accurately determine the phase sequence of three-phase electrical systems and indicate motor rotation direction. This tool is essential for electrical engineers and industrial technicians in Uganda to ensure that motors and machinery are connected correctly, preventing costly damage caused by reverse rotation.
Unlike the standard UT261A, the UT261B is a high-performance model that can detect motor rotation without contact, making it safer and more versatile for troubleshooting disconnected or unpowered motors.
Dual-Function Testing: * Phase Sequence: Identifies the $L1, L2, L3phases in a three-phase system to ensure correct wiring.
Motor Rotation: Indicates the rotation direction (Clockwise/Counter-clockwise) of the motor before or after power is applied.
Non-Contact Motor Detection: Can determine the rotation direction simply by placing the meter near the motor and spinning the shaft manually—perfect for pre-installation checks.
Large LCD Display: Features a clear, easy-to-read screen that displays phase status and rotation arrows, eliminating the guesswork associated with older LED-only testers.
Battery-Free Operation (Phase): When testing phase sequence, the device is powered directly by the circuit under test ($L-L$ voltage). The battery is only required for the motor rotation function.
High Voltage Safety: Rated for use in environments up to 600V (CAT III), ensuring protection against electrical surges during industrial inspections.
Comprehensive Lead Set: Comes with three heavy-duty test leads and alligator clips for secure connection to busbars and terminal blocks.
| Feature | Details |
| Phase Sequence Voltage | 90V ~ 600V AC |
| Frequency Range | 15Hz ~ 400Hz |
| Motor Rotation Voltage | 30V ~ 600V AC |
| Safety Rating | CAT III 600V (IEC 61010) |
| Power Supply | 9V Battery (6F22) - Required for Motor Mode |
| Dimensions | 123mm x 71mm x 37mm |
| Weight | 160g (Portable & Lightweight) |
Prevents Equipment Damage: Ensures that pumps, fans, and compressors rotate in the correct direction upon first power-up.
Fast Troubleshooting: Quickly identifies a "blown" phase or a reversed connection in complex industrial panels.
Safety First: Keeps technicians away from high-voltage terminals thanks to the non-contact motor sensing capability.
