BTicino Earth leakage circuit breaker type B 4P - In= 63A - Idn= 300mA — G744B63

Technical specifications

Manufacturer model: G744B63 Catalogue reference: BT-G744B63 EAN: 8005543686461 Range: Btdin Manufacturer category: Low-voltage protection and power distribution/Btdin modular protection and command devices/Earth leakage circuit breakers (Rccb's) Mounting method: DIN rail Colour: Grey Height: 83mm Connection type: Screwed terminal Voltage type: AC Rated current: 63A Number of poles: 4 degree of impact strength (IK): IK04 Degree of protection (IP): IP20 Confirm the required regional standard and system compatibility when selecting this model. Product reference: https://www.bticino.com/products/bt-g744b63 Source: https://www.bticino.com/products/low-voltage-protection-and-power-distribution/btdin-modular-protection-and-command-devices?limit=48&page=19&sort=a-to-z Checked: 2026-10-11