HR743 – Toroidal Transformer 105mm
The Hager HR743 is a ring type toroidal current transformer with a 105mm aperture, compatible with Hager HR5 series earth leakage relays. It fits around the phase and neutral conductors to detect residual leakage current and trigger the connected relay. The larger 105mm window suits larger cable groups and higher current circuits, delivering accurate, dependable fault detection as part of a matched Hager protection system.
Applications
- Residual current sensing for earth leakage relay systems
- Earth fault protection in distribution boards and control panels
- Larger cable groups and higher current circuits
- Commercial and industrial installations
| Key Specifications | Details |
|---|---|
| Core Diameter | 105mm |
| Type | Toroidal Transformer |
| Compatible | HR500 Series Earth Leakage Relays |
