Sprecher & Schuh KTA7-25S-4.0A Motor Breaker Control

The Sprecher + Schuh KTA7-25S-4.0A Motor Breaker Control is a high‑voltage motor circuit controller that combines switching and protection for a single motor in industrial power systems. It is rated for service up to 6 kV and supports AC operation up to 690 V with a 50/60 Hz supply, while carrying a 4.0 A load current and identified as Category A equipment. As part of Sprecher + Schuh’s KT7/KTA7 family, the unit can function as a motor disconnect or manual motor starter within a control panel, enabling compact, integrated motor control in either standalone or group installations. The KT7/KTA7 line is designed for reliable short‑circuit performance, with documented capabilities up to 65 kA at 480 V and 47 kA at 600 V, and it typically trips under locked‑rotor conditions within around 10 seconds when fault conditions occur. This model is suitable for circuits that operate at standard industrial voltages while demanding a dedicated, easy‑to‑install control device for motors such as conveyors, pumps, fans, or compressors, delivering straightforward protection and controlled starting for moderate‑load applications.