Double power automatic transfer switch for reliable, compact power transfer Key benefits Ensures continuous power by automatically switching between a primary and a standby supply, reducing downtime and manual intervention. Supports both automatic and manual operation to match site procedures and maintenance needs. Compatible with different rated currents for the universal and standby circuit breakers, allowing flexible integration with existing protection devices. Compact, motor driven design minimizes footprint and mechanical impact for smoother, quieter transfers. What it is This changeover switch consists of two miniature circuit breakers plus auxiliary contacts, alarm contacts, a mechanical interlock transmission, a controller, and related components. The unit is designed to perform automatic or manual transfer between two power sources while maintaining electrical and mechanical interlock for secure operation. Key functions and features Automatic and manual transfer: Select automatic mode for unattended switching or manual mode for controlled operation during maintenance. Mechanical and electrical interlock: Prevents simultaneous connection of both sources and provides coordinated control between breakers. Auxiliary and alarm contacts: Provide status signals and alarm outputs for integration with control panels or monitoring systems. Motor driven actuation: Single motor drive provides smooth, lownoise operation with reduced mechanical shock during switching. Interference isolation: Built with measures to limit electromagnetic interference and ensure stable control signal performance. Flexible compatibility: Universal and standby circuit breaker rated currents may differ, enabling use with a variety of breaker sizes and protection schemes. Compact, simple structure: Small footprint and straightforward construction simplify installation and reduce space requirements. Typical applications Backup generator transfer for commercial or residential buildings, enabling automatic switch to generator power and to mains when available. Telecom sites and remote equipment shelters where uninterrupted power and compact equipment are required. Industrial equipment and utility panels that require reliable changeover between main and standby supplies during maintenance or fault conditions. Performance and installation notes Designed for smooth, lowimpact switching driven by a single motor to improve conversion consistency. Provides signaling through auxiliary and alarm contacts for monitoring systems and external controllers. Suitable where differing breaker ratings are needed between primary and standby sources. This automatic transfer switch combines reliable transfer logic, interlock safety, compact design, and monitoring outputs to support a wide range of power continuity applications.