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S261-D10

The ABB S261-D10 is a single-pole, high inrush miniature circuit breaker (MCB) from ABB's System Pro M compact® S200 series. It is a 1-pole (1P) device featuring a "D" characteristic trip curve and a 10 Ampere rated current. This MCB is specifically engineered for circuits with very high inrush currents, providing reliable protection while preventing nuisance tripping during motor startups or transformer energization.

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Parameters Category Parameter Specification for S261-D10 General Product Type Single-Pole Miniature Circuit Breaker (MCB) Series System Pro M compact® S200 Poles 1 Pole (1P) Rated Current (In) 10 A Tripping Characteristic "D" Curve Electrical Ratings Rated Operational Voltage (Ue) AC 230/400 V Rated Insulation Voltage (Ui) 500 V Rated Frequency 50/60 Hz Breaking Capacity Rated Service Short-Circuit Breaking Capacity (Ics) 6 kA (at 230/400V AC, per IEC/EN 60898-1) Rated Ultimate Short-Circuit Breaking Capacity (Icu) 6 kA Tripping Characteristics (IEC 60898) Overload (Thermal) 1.13 x In (11.3A): No trip within 1 hour. 1.45 x In (14.5A): Must trip within 1 hour. Magnetic Instantaneous Trip Range 10 x In (100A) to 20 x In (200A). Mechanical & Operational Electrical Life ≥ 10,000 operations (at In) Mechanical Life ≥ 20,000 operations Operation Manual toggle lever. Terminals Terminal Type Cage Clamp (Spring Loaded) Acceptable Conductor Size Solid/Fine-stranded: 1 - 25 mm² With ferrule: 1 - 16 mm² Mounting Mounting Standard 35 mm symmetrical DIN rail (EN 60715) Width 1 Module (17.5 mm) Environmental Operating Temperature -25°C to +55°C (Calibrated at +30°C) Storage Temperature -40°C to +70°C Standards & Approvals Primary Compliance IEC/EN 60898-1 Certifications CE, CCC, etc.