Description

The S203-C80 miniature circuit breaker from ABB’s System pro M compact S200 range provides high-performance protection for demanding three-phase electrical systems. It features a delayed thermal tripping mechanism for overload protection and an electromechanical trip for short-circuit faults, ensuring consistent and precise operation. With a Type C tripping curve, this 80 A MCB is designed for circuits with moderate inrush currents such as lighting, HVAC, and motor systems. The 3-pole modular design provides full phase isolation and allows efficient DIN-rail installation, while its compact form factor supports optional bottom-fitting auxiliary contacts that can save up to 50% panel space. For professional-grade system integration, the S203-C80 fits seamlessly within our industrial panel fabrication solutions.

Key Specifications – Miniature Circuit Breaker S203-C80

• Model: S203-C80

• Rated Current: 80 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

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

Highlights

• High-capacity 80 A protection for three-phase systems

• Dual tripping ensures rapid fault response and system safety

• Type C curve suitable for circuits with moderate inrush currents

• Compact, current-limiting design reduces system wear

• Compatible with ABB auxiliary and signaling accessories

Typical Uses

• Industrial power distribution and automation panels

• HVAC, lighting, and control circuits

• Heavy-duty motor and equipment protection

• Commercial and sub-distribution systems

Installation & Support

The S203-C80 allows quick and secure DIN-rail installation for flexible system design.

• Supports auxiliary and signaling contact integration

• Supplied with wiring and installation documentation

• Backed by ABB’s technical service and global spare parts support