ABB, SACE Tmax XT, XT4S Molded Case Circuit Breaker 3-Pole 250A, Breaking Capacity 12 kA, Fixed

This moulded-case circuit-breaker is a three-pole protective device designed to interrupt fault currents in low-voltage distribution and control systems. It is intended for fixed mounting and provides instantaneous tripping to protect conductors and equipment in industrial automation, electrical distribution and mechanical control panels. The product is compatible with systems requiring AC and DC interruption and is built to recognised international standards.

• 250 A rating delivers high continuous current capacity
• 690V AC rating supports high-voltage distribution applications
• 500V DC rating enables use in DC-fed systems
• 12 kA breaking capacity limits fault energy exposure
• Bolt terminals ensure secure conductor connections
• Instantaneous trip characteristic minimises damage from short circuits

• Suitable for protection of motor-feeder circuits in automation cabinets
• Ideal for distribution boards requiring three-pole isolation
• Used with DC supplies in battery-backed control systems
• Can be used for panel-level short-circuit protection in manufacturing plants
• Used for retrofit installations requiring fixed-mount breakers

It is designed for fixed installation and requires a secure panel or frame mounting compatible with bolt-terminal access.

It is manufactured to conform with IEC requirements for low-voltage circuit-breaker performance and testing.

Bolt terminals provide a robust mechanical and electrical connection suitable for conductors of varying cross-sections and support repeated torque application.

The AC rating makes it suitable for up to 690V AC systems while the DC rating permits use in circuits up to 500V DC where Rapid interruption is needed.