The MCCB S3X 3P is a fixed circuit breaker designed for AC applications. It has a current rating of 125 A and can handle short-circuit currents up to 30 kA. The MCCB features front terminals for easy installation and a thermomagnetic release mechanism. It also has a current-limiting capability with an R100 rating. The operating voltage for this MCCB is 1000 V. This product is manufactured by ABB, a trusted brand in the industry.