Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 36 kA

This MCCB is an essential component in electrical distribution systems. Designed for line protection, it offers advanced overcurrent and short-circuit protection. With three poles and a current rating of 250A, this circuit breaker ensures reliability in industrial applications. It features a compact design with dimensions of 105mm in length, 70mm in width, and 158mm in depth, making it suitable for various installations.

• High breaking capacity of 36 kA at 415V enhances safety
• Type S tripping characteristics ensure precise fault detection
• Adjustable overload protection ranges from 175A to 250A
• Suitable for AC and DC operations with a rated voltage of 690V
• Robust mechanical and electrical endurance with up to 20,000 operating cycles
• Convenient toggle switch reset actuator for user-friendly operation

• Used for protecting motor circuits in industrial environments
• Employed in substations for reliable power distribution
• Ideal for requiring robust short-circuit protection
• Utilised in switchgear for enhanced operational safety
• Implemented in commercial buildings for power management

Exceeding the operational current of 250A may trigger the built-in thermal protection, leading to the circuit breaker tripping to prevent overheating and potential damage to connected equipment.

The adjustable overload protection allows users to set the desired threshold between 175A and 250A based on specific load requirements, ensuring optimal performance while safeguarding against current surges.

Yes, it operates efficiently between -25°C and 70°C, allowing flexible deployment in various environments, including harsh industrial settings.

Type S tripping characteristics provide precise fault detection, reducing the risk of nuisance tripping and allowing for more accurate operation in complex circuit configurations.

The breaking capacity is maximised at 36 kA for 415V, ensuring safe interruption of high fault currents, while it decreases for higher voltages, notably lower for 690V at 7 kA, tailored to specific application needs.