ABB S803N MCB, 3P, 10A Curve C, 690V AC, 36 kA Breaking Capacity

This MCB is a high-performance circuit breaker designed for robust electrical systems. With a current rating of 10A and a rated AC voltage of 690V, it features three poles and measures 81mm in width and 82.5mm in depth. The circuit breaker offers exceptional performance with a breaking capacity of 36kA, making it suitable for a variety of applications in residential, commercial, and industrial settings.

• Combines thermal and electromechanical tripping for enhanced protection
• Current limiting device protects against overload and short circuits
• Compatible with AC and DC voltages up to 690V
• High breaking capacity ensures safety under maximum fault conditions
• Designed for DIN Rail mounting, facilitating easy installation
• Screw terminal design enhances electrical connectivity and reliability

• Utilised in residential electrical systems for circuit protection
• Employed in commercial buildings to safeguard electrical installations
• Ideal for industrial environments where high performance is necessary
• Used in automation systems that require robust circuit protection
• Compatible with accessory systems for customised

Regular inspections should be conducted to ensure proper operation and to check for signs of wear or damage. Furthermore, tightening screws as per specified torque values will help maintain electrical connectivity.

The breaking capacity refers to the MCB's ability to interrupt fault current without causing damage to itself or the electrical circuit. A higher breaking capacity, such as 36kA, significantly improves safety, ensuring that electrical fault conditions are managed effectively.

Yes, it can connect flexible cables of up to 50mm² and rigid cables of up to 70mm², allowing versatility in installations. Ensure the cable size is appropriate for the specific current rating and application.