Klockner Moeller S223-K10A Three-Phase Circuit Breaker

The S223-K10A is a three-pole Moeller circuit breaker intended for DIN-rail installation in industrial electrical panels. It provides overcurrent protection with a 10 A rated current and up to 480 V AC, and it follows a K-curve trip characteristic that defines its response to fault currents. This variant sits in the S223 family and is designed for compact DIN-rail mounting in control cabinets, distribution panels, and equipment enclosures, enabling straightforward integration with other Moeller devices. As a 3P device, it disconnects all three phases simultaneously to achieve safe de-energization of the protected circuit. Typical applications include motor control panels and three-phase power-distribution builds where space is limited but reliable protection is essential.