Description

The S203-C32 miniature circuit breaker from ABB’s System pro M compact S200 series provides robust and reliable three-phase protection for industrial, commercial, and residential electrical systems. Designed with both thermal and electromechanical tripping mechanisms, it ensures dependable performance in protecting circuits against overload and short-circuit faults. The Type C tripping characteristic makes it suitable for circuits with moderate inrush currents, such as lighting, HVAC, and small machinery. The 3-pole modular design enables full phase isolation, while optional bottom-fitting auxiliary contacts help save up to 50% of enclosure space. For integrated system protection and control, it can be combined with our industrial panel fabrication solutions.

Key Specifications – Miniature Circuit Breaker S203-C32

• Model: S203-C32

• Rated Current: 32 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 fast and precise fault protection

• Type C curve ideal for circuits with moderate inrush currents

• Three-pole configuration ensures complete circuit isolation

• Compact modular design with current-limiting capability

• Supports auxiliary and signaling contact modules

Typical Uses

• Three-phase distribution boards and panels

• HVAC, lighting, and control systems

• Industrial automation and motor control circuits

• Commercial and residential sub-distribution

Installation & Support

The S203-C32 allows easy DIN-rail installation and secure terminal connections.

• Compatible with ABB auxiliary and signaling accessories

• Supplied with installation and wiring documentation

• Supported by ABB’s technical service and spare parts availability