Earth Testers
SEW
The SEW 6221EL is an easy-to-use tester that's designed to test single and three-phrase RCD's, while also containing 3 phase rotation. It also features a simple menu interface, rotary dial for choosing the RCD current and robust case for protection.
- Tests single & 3 phase RCD's
- In-built phase sequence indicator
- Measures trip time or trip current
$2,056.20