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
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Model: S203-C80 
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Rated Current: 80 A 
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Tripping Characteristic: Type C 
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Rated Voltage: 230/400 V AC 
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Breaking Capacity: 6 kA 
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Poles: 3P (Three-Pole) 
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Tripping Mechanisms: - 
Thermal: Overload protection 
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Electromechanical: Short-circuit protection 
 
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Standards Compliance: IEC/EN 60898-1, IEC/EN 60947-2, UL1077 
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Mounting: DIN-rail modular system 
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Operating Temperature: -25°C to +55°C 
Highlights
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High-capacity 80 A protection for three-phase systems 
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Dual tripping ensures rapid fault response and system safety 
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Type C curve suitable for circuits with moderate inrush currents 
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Compact, current-limiting design reduces system wear 
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Compatible with ABB auxiliary and signaling accessories 
Typical Uses
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Industrial power distribution and automation panels 
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HVAC, lighting, and control circuits 
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Heavy-duty motor and equipment protection 
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Commercial and sub-distribution systems 
Installation & Support
The S203-C80 allows quick and secure DIN-rail installation for flexible system design.
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Supports auxiliary and signaling contact integration 
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Supplied with wiring and installation documentation 
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Backed by ABB’s technical service and global spare parts support 
 
					 
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