Schneider Electric GoPact MCCB G40N3A250 | 3-Pole, 250A, 50kA, Adjustable Thermal-Magnetic Circuit Breaker

Schneider Electric GoPact MCCB G40N3A250 is a premium, high-capacity Molded Case Circuit Breaker designed to deliver uncompromised protection and reliability in demanding commercial and industrial electrical networks. Engineered within the rugged GoPact MCCB 400 frame, this 3-pole breaker features a 250A rated current combined with an elite short-circuit breaking capacity of 50kA at 415VAC. It is purpose-built to safeguard large-scale downstream infrastructure against intense short circuits and destructive thermal overloads.

Equipped with an advanced Thermal-Magnetic Distribution (TMD) trip unit, the G40N3A250 provides adjustable thermal protection, allowing electrical engineers to fine-tune the overload threshold to perfectly match the specific current demands of their cabling and machinery. Backed by the global engineering excellence of Schneider Electric, this 250A MCCB is highly specified for main low-voltage distribution boards (LVDB), heavy-duty HVAC compressor banks, elevator machine groups, and factory sub-stations. For major infrastructure projects across Egypt where continuous uptime, code compliance, and cost-optimized reliability are mandatory, this breaker stands as the definitive professional choice.

Key Technical Features:

• 250A Continuous Current Rating: Optimized for main incoming panels and high-capacity industrial motor feeders.

• 50kA High-Fault Breaking Capacity: Delivers ultimate electrical resilience close to major step-down supply transformers.

• Adjustable Thermal Protection: TMD trip unit allows field calibration of overload settings for precise circuit coordination.

• 3-Pole Three-Phase Isolation: Simultaneous mechanical tripping across all three phases to protect against single-phasing hazards.

• GoPact 400 Industrial Frame: Built with heavy-duty internal arc-chutes and ruggedized, heat-resistant casing material.

• Seamless Accessory Integration: Readily supports auxiliary contacts, shunt trips, and ergonomic rotary handles.