Description

The S203-C10 miniature circuit breaker from ABB’s System pro M compact S200 series offers high-performance protection for three-phase electrical systems. Equipped with a delayed thermal tripping mechanism for overload protection and an electromechanical trip for short-circuit detection, it ensures accurate and dependable circuit interruption. The Type C tripping curve allows it to handle circuits with moderate inrush currents, such as lighting, HVAC, and control panels. The 3-pole design provides full phase isolation, making it ideal for industrial and commercial applications. Compact and modular, the S203-C10 allows for easy DIN-rail installation, with bottom-fitting auxiliary contacts that can save up to 50% of space. For seamless integration, it complements our industrial panel fabrication systems for enhanced safety and efficiency.

Key Specifications – Miniature Circuit Breaker S203-C10

• Model: S203-C10

• Rated Current: 10 A

• Tripping Characteristic: Type C

• Rated Voltage: 230/400 V AC

• Breaking Capacity: 6 kA

• Poles: 3P (Three-Pole)

• Tripping Mechanisms:

  • Thermal: Overload protection

  • Electromechanical: Short-circuit protection

• Standards Compliance: IEC/EN 60898-1, IEC/EN 60947-2, UL1077

• Mounting: DIN-rail modular system

• Configurations: 1P, 1P+N, 2P, 3P, 3P+N, 4P

• Operating Temperature: -25°C to +55°C

Highlights

• Dual tripping mechanism for precise and fast fault protection

• Type C curve ideal for moderate inrush current circuits

• Three-pole configuration ensures full phase isolation

• Compact modular design with current-limiting performance

• Supports auxiliary and signaling contact integration

Typical Uses

• Industrial three-phase distribution systems

• Lighting, HVAC, and automation circuits

• Machinery and equipment control panels

• Commercial and sub-distribution boards

Installation & Support

The S203-C10 allows fast DIN-rail mounting and secure wiring connections.

• Compatible with auxiliary and signaling accessories

• Supplied with installation and wiring documentation

• Supported by ABB’s global service and spare parts network