A9R74440

The Schneider Electric Acti9 A9R74440 RCCB provides reliable earth leakage protection for four-pole electrical systems in residential, commercial and light industrial installations. Rated at 40 A with a 300 mA sensitivity, it is designed mainly for fire protection and equipment safety rather than personal shock protection. As an AC type RCCB, it detects standard AC leakage currents and disconnects the circuit to prevent damage and reduce the risk of electrical fires.

Key Features

• 4-pole RCCB for three-phase and single-phase protection
• 40 A rated current
• 300 mA sensitivity for fire and equipment protection
• AC type leakage detection