4P 63A 230V MCB Type Dual Power Automatic Transfer Switch ATS Overview This 4pole, 63 A MCB type Automatic Transfer Switch (ATS) provides automatic or manual transfer between two independent power sources. It is designed for terminal installation and supports 3phase 4wire systems or singlephase singlewire systems. Note: power will be interrupted during switching. Key benefits Automatic priority switching: the ATS monitors the normal source first and switches to the reserve source only when the normal source fails. It restores to the normal source automatically when it returns. Manual override: a manual mode lets an operator select the source directly when automatic control is not required. Integrated MCB protection style: combines transfer switching with circuit breaker style protection in a compact terminal device suitable for distribution panels. Flexible installation: supports vertical or horizontal mounting and is suitable for standard dualpower grid applications. Core functions Automatic mode: press the control button to enable automatic operation; the device will transfer loads between normal and reserve power according to voltage presence on Phase A. Manual mode: press the control button to select manual operation; source selection is performed by the operator. Note: the ATS does not start or stop a generator. It only makes electrical connection between the selected sources and the load. Applications Backup power transfer for small commercial buildings, shops, or residential complexes with a secondary supply or generator. Power source management for lighting, motor control, or noncritical distribution circuits that require quick changeover between two grids. Transfer switching in small industrial or utility distribution panels where compact terminaltype ATS units are required. Operational and installation conditions Ambient temperature range: 5 to +40 degrees C Installation altitude: up to 2000 meters Pollution level: Grade 3 Installation category: 3 Mounting: vertical or horizontal Main technical parameters Pole count: 4P Maximum current: 63 A (model available in rated currents 6, 10, 16, 20, 25, 32, 40, 50, 63 A) Rated voltage: 400 V / 230 V (general application); Rated voltage Ue examples: 220 V for 2P, 380 V for 3P or 4P Rated frequency: 50/60 Hz Electrical appliance class: CB Use category: AC33B Tripping current: Type C: 5 to 10 times In Type D: 10 to 15 times In Rated shortcircuit connecting ability Icm (peak): 9.18 kA or 6.615 kA Rated shortcircuit breaking ability Icn (effective value): 6 kA or 4.5 kA What makes this ATS stand out Terminal type design for straightforward panel integration Clear automatic and manual control modes for operational flexibility Wide range of rated currents up to 63 A to match different load requirements Compact MCB style switching suitable for standard distribution boards Ordering considerations Verify system configuration (singlephase or threephase) and select the appropriate pole and rated current variant. Confirm that brief power interruption during switching is acceptable for the intended loads. Ensure installation meets the stated environmental and altitude limits. This ATS is intended for reliable transfer of loads between two power sources in commercial, residential, and light industrial distribution systems.