Intro

The ABB STOTZ-KONTAKT S203M-B20 is a three-pole circuit breaker that delivers reliable overcurrent protection for electrical installations. With a 20 A rating and a B-type trip curve, it guards wiring and equipment from overloads and short circuits while enabling safe operation in multi-phase systems. Its robust 10 kA interrupting capacity supports protection in demanding environments, and its compact design simplifies installation in standard distribution panels.

• 20 A rated current — Protects circuits from overloads while keeping normal operation secure.
• B-type trip curve — Delivers fast, predictable responses for common loads.
• Three-pole design — Provides balanced protection across all three phases.
• 10 kA interrupting capacity — Safely clears high fault currents to protect wiring.
• Compact and reliable — ABB engineering ensures durable performance in panels.

Final Thoughts

Choose the S203M-B20 for dependable, easy-to-integrate protection that helps extend equipment life. With strong interrupting capability and a compact form factor, it’s a smart, cost-effective addition to any three-phase distribution panel. Order today to safeguard your electrical system with ABB reliability.