Extech 480403 Phase Rotation Tester
The Extech 480403 Phase Rotation Tester helps electricians and maintenance engineers verify phase sequence and motor rotation quickly and safely. It operates across a wide voltage range from 40V to 600V AC and supports frequency testing from 2Hz to 400Hz. Clear LED indicators provide instant feedback for efficient troubleshooting.
Designed for use on three-phase electrical systems, the tester identifies clockwise and anti-clockwise phase rotation with ease. It also confirms correct phase sequence before equipment is energised. As a result, users can reduce the risk of wiring errors and prevent costly damage to motors.
Fast and Reliable Testing
LED status indicators show phase activity clearly, allowing quick interpretation of results in the field. The Extech 480403 Phase Rotation Tester supports rapid checks during installation, maintenance and commissioning work. In addition, its non-contact live line detection function adds an extra layer of convenience.
Built for regular industrial use, the instrument features a durable double-moulded housing that helps protect against knocks and daily wear. Colour-coded test leads and wide-jaw crocodile clips make connections simple and secure. Consequently, setup time is reduced and testing becomes more efficient.
Portable Field Solution
Because portability is important for site work, the Extech 480403 Phase Rotation Tester is supplied with a soft carry case for easy transport and storage. Its lightweight design allows comfortable handling throughout the working day. Furthermore, the included accessories ensure the tester is ready for immediate use.
Two different set types are available, allowing users to select the package that best suits their application requirements. The Extech 480403 Phase Rotation Tester combines phase sequence verification, motor rotation indication and live line detection in a single compact instrument. This makes it a practical choice for electrical testing across a wide range of industrial environments.
Key Features
- Identifies clockwise phase rotation
- Identifies anti-clockwise phase rotation
- Verifies three-phase sequence
- Checks motor rotation direction
- Supports non-contact live line detection
- Suitable for commissioning electrical installations
- Helps prevent motor damage from incorrect wiring
- LED indicators provide clear status feedback
- Double-moulded housing improves durability
- Supplied with colour-coded test leads
- Wide-jaw crocodile clips provide secure connections
- Compact design for portable field use
- Suitable for industrial maintenance applications
- Soft carry case included for transport and storage
- Ready for use with supplied 9V battery
Technical Specifications
| Product | Extech 480403 Phase Rotation Tester |
| Manufacturer | Extech |
| Manufacturer Part Code | 480403 |
| Instrument Type | Phase rotation and motor rotation tester |
| Voltage Range | 40V to 600V AC |
| Frequency Range | 2Hz to 400Hz |
| Phase Sequence Indication | Yes |
| Motor Rotation Indication | Yes |
| Phase Direction Indication | Clockwise and anti-clockwise |
| Display Type | LED indication |
| Live Line Detection | Non-contact |
| Housing Construction | Double-moulded protective housing |
| Test Lead Type | Colour-coded leads |
| Connection Type | Wide-jaw crocodile clips |
| Power Supply | 9V battery |
| Application | Three-phase electrical systems |
| Portable Carry Case | Included |
| Set Options Available | Two different set types available |
| Warranty | Not specified |
Document Downloads
What’s Included
- Extech 480403 Phase Rotation Tester
- Three test leads
- Three crocodile clips
- 9V battery
- Instruction booklet
- Soft carry case

