S203M-C10DC_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Parameters Specification Value / Description Product Type Miniature Circuit Breaker (MCB) Model S203M‑C10 Poles 3 poles (3P) Rated Current (In) 10 A Rated Operational Voltage 230/400 V AC (Three‑phase) Rated Insulation Voltage (Ui) 440 V AC Rated Operational Voltage (Ue) 400 V AC Rated Short‑Circuit Breaking Capacity (Icn) 10 kA at 400 V AC Rated Ultimate Short‑Circuit Breaking Capacity (Icu) Up to 25 kA at 230 V AC Tripping Curve Type C (magnetic‑thermal trip) Trip Mechanism Thermal for overload, magnetic for short‑circuit Frequency 50 Hz / 60 Hz Connections Screw terminals with cylinder‑lift clamp Mounting DIN‑rail (TH35) Terminal Capacity Flex: 0.75–25 mm²; Rigid: 0.75–35 mm² Power Loss ~6.3 W total (2.1 W per pole) Operating Ambient Temp –25 °C to +55 °C Degree of Protection IP20 (terminal area); IP40 with enclosure Mechanical Endurance ~20,000 cycles Electrical Endurance ~20,000 AC cycles

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DESCRIBE

The ABB S203M‑C10 is a 3‑pole miniature circuit breaker (MCB) from ABB’s System pro M compact (S200M) range. It is designed to provide overload and short‑circuit protection for electrical circuits in residential, commercial, and industrial installations. The breaker uses a C‑curve trip characteristic, making it suitable for general electrical loads including lighting, socket circuits, and motor loads with moderate inrush current. It is DIN‑rail mountable and commonly used in distribution boards and control panels where reliable circuit protection is required.

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