HR742 – Toroidal Transformer 70mm
The Hager HR742 is a ring type toroidal current transformer with a 70mm aperture, built to pair with Hager HR5 series earth leakage relays. Fitted around the phase and neutral conductors, it senses the residual current from an earth fault and passes the signal to the relay for tripping. The 70mm window suits medium cable groups, ensuring accurate, reliable leakage 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
- Medium cable groups
- Commercial and industrial installations
| Key Specifications | Details |
|---|---|
| Core Diameter | 70mm |
| Type | Toroidal Transformer |
| Compatible | HR500 Series Earth Leakage Relays |
