G40N3A400 Schneider Electric MCCB | GoPact 400 3-Pole 400A 50kA at 415V Adjustable Thermal TMD Circuit Breaker

Schneider Electric G40N3A400 is a GoPact MCCB 400 molded case circuit breaker designed for dependable protection in industrial and commercial electrical distribution systems. It is a 3-pole MCCB with a 400A rating and 50kA breaking capacity at 415VAC, making it suitable for main distribution panels, feeder protection, and low-voltage switchboard applications. Schneider Electric officially specifies this model with a TMD thermal-magnetic trip unit and adjustable thermal protection, which helps engineers and procurement teams choose a reliable protection device for industrial panels and power systems.

Equipped with an adjustable Thermal-Magnetic (TMD) trip unit, the G40N3A400 allows engineers to manually tune the thermal protection between 280A and 400A. This precision is essential for matching the breaker to specific motor loads or varying cable capacities. With its robust N-level performance, this 400A breaker ensures the highest reliability in the GoPact range, offering the perfect balance of Schneider's global engineering excellence and cost-efficiency for the Egyptian market.

Key Technical Features:

Performance Level N (50kA): High interruption capacity for industrial networks with high fault currents.
400A Continuous Rating: The ideal size for main incomers and large sub-distribution panels.
Adjustable Thermal Protection: On-site setting range from 280A to 400A to prevent nuisance tripping.
Durable Construction: Built for harsh environments with a mechanical life of 15,000 cycles.
Compact Integration: Standardized dimensions (120x205mm) for easy retrofit into existing panels.

Brand: Schneider Electric
Series: GoPact MCCB 400
Part Number: G40N3A400
Poles: 3P
Rated Current: 400A
Breaking Capacity: 50kA at 415VAC
Trip Unit: TMD
Thermal Protection: Adjustable
Standards: IEC 60947-1 / IEC 60947-2
Dimensions: 120 × 205 × 105 mm