Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 35 kA, Fixed Mount

This MCCB moulded case circuit breaker is specifically designed for reliable performance in various electrical applications. With dimensions of 138mm in width and 110mm in depth, it provides robust protection with a current rating of 400A and operates efficiently at a rated voltage of 690V. This model integrates advanced features to ensure maximum safety and reliability in electrical systems.

• Offers a breaking capacity of 35 kA for effective fault management
• Designed with Type M tripping characteristics for precise overload protection
• Rated for fixed mounting, ensuring stability in various settings
• Insulation voltage of 800V enhances safety and reliability
• Supports adjustable settings for response times and overload protection
• Mechanical service life of approximately 20,000 operating cycles for durability

• Used in line protection within electrical distribution systems
• Ideal for heating, ventilation, and air conditioning circuit installations
• Supports installation in commercial and industrial environments requiring robust protection
• Suitable for integration with Siemens electrical components to enhance system efficiency

The adjustable response settings allow for tailored protection based on the specific requirements of the electrical system, which can reduce the risk of false tripping during minor fluctuations while ensuring safety during significant overloads.

It operates effectively at 400A up to temperatures of 55°C, while still providing a current rating of 370A at 60°C, ensuring dependable functionality in elevated thermal conditions.

A breaking capacity of 35 kA ensures the circuit breaker can interrupt high fault currents, protecting downstream equipment from damage and maintaining system integrity under fault conditions.

This circuit breaker is certified for EMV compliance, making it suitable for use in marine and shipping applications that require stringent safety standards.