The ABB S751/3DR-E50 is a high-quality main circuit breaker designed for selective, overcurrent protection in electrical installations. With a 50 A rating and a 3-pole configuration, it delivers reliable protection for distribution boards and industrial power systems.

Key features & design

• Model: ABB S751/3DR-E50
• Configuration: 3 x 1 (three-pole main switch)
• Rated current: 50 A
• Protection type: selective main circuit protection for coordinated disconnection
• Brand: ABB

Performance & benefits

Designed to quickly interrupt fault currents while preserving non-affected parts of the electrical network, this main circuit breaker enhances safety and reduces downtime. Its selective coordination helps you achieve coordinated protection across upstream and downstream devices, simplifying maintenance and improving overall system reliability. Suitable for integration in commercial and industrial power distributions where dependable overcurrent protection is essential.