The ABB S203-B20 is a miniature circuit breaker designed for three-phase electrical systems. With a B-type trip characteristic, it provides reliable protection for distribution panels in commercial and industrial applications.

Key Features & Design

• Brand: ABB
• Model: S203-B20
• Type: B-type trip curve
• Poles: 3P (three-pole)
• Category: miniature circuit breaker
• Application: protection for 3-phase distribution circuits

Performance / Benefits

• Delivers reliable overload and short-circuit protection for 3-phase systems
• Fast, predictable trip response minimizes equipment damage and downtime
• Compact design supports easy installation in standard electrical panels
• Designed for consistent performance in commercial and industrial environments