Dual Power Automatic Transfer Switch NXZM/NXZHM series Model NXZM125S/4B Color Nxzm250s 4b Overview The NXZM/NXZHM series automatic transfer switch provides reliable automatic transfer between two independent power sources for threephase fourwire doublecircuit networks. It is designed to keep one or several load circuits supplied with power without manual intervention, reducing downtime and ensuring stable operation of critical systems. Key features and specifications Function: Automatic transfer of load circuits from one power source to another to maintain continuous power supply. Rated frequency and voltage: AC 50 Hz, rated voltage up to 400V/415V and below. Rated current range: Options from 100A, 125A, 160A, 250A, 400A, 630A up to 800A. The NXZM125S/4B corresponds to the 125A rating. Working/control voltage: AC220V. Configuration: Threephase fourwire, doublecircuit network; 4 poles (4P). Type: Dual power automatic transfer switch at ATS and circuit breaker level. : Model NXZM125S/4B is to application requirements. Standards Standards: IEC 609471, IEC 6094761, GB/T 14048.1, GB/T 14048.11 Environmental testing standards: IEC 6006821 low temperature, IEC 6006822 temperature, IEC 60068230 cyclic damp heat, IEC 60068211 salt mist Benefits and why you need it Continuous power: Automatically restores power to load circuits when the primary source fails, minimizing interruptions. Flexible capacity: Wide rated current range supports small to large installations without redesigning the distribution system. Multiload support: Can switch one or multiple load circuits, enabling efficient distribution of backup power. Built for demanding conditions: Designed with environmental test standards in mind to perform reliably in a range of temperatures and humidity conditions. Simplified operation: Eliminates the need for manual switching and reduces response time during power transfer events. Typical applications Data centers and server rooms: Maintain uninterrupted power to critical IT equipment and networking gear. Commercial buildings and emergency systems: Support emergency lighting, elevators, and building management circuits. Industrial facilities and manufacturing lines: Provide backup power to control systems, motors, and production equipment to reduce downtime. Telecommunications and utility sites: Ensure continuous operation of communication equipment and essential control systems. What is included and compatibility Model example: NXZM125S/4B for 125A applications. Other rated currents available within the NXZM/NXZHM series to match system requirements. Compatible with threephase fourwire supply systems up to 400V/415V and 50 Hz. Ordering and Available in multiple rated currents and configurable for specific panel or circuit requirements. Specify model number and required rated current when ordering.