Size: NXZHM125/4A80A Model: NXZHM125/4A 80A Product overview This automatic power transfer unit provides reliable automatic detection and switching between power sources to maintain continuous power supply. Designed for stable operation and long service life, it integrates mechanical and electrical interlocking and multiple protection functions while supporting modular expansion. Key benefits Continuous power availability: automatic detection and fast switching between power sources reduces downtime and keeps critical loads powered. Safe and reliable operation: mechanical and electrical interlocking prevents simultaneous source connection and reduces the risk of short circuits through coordinated switching logic. Durable performance: stable mechanical design and smooth contact switching extend service life and reduce maintenance frequency. Flexible : modular architecture supports a variety of functional modules for tailored configurations and future expansion. Core functions and attributes Function: automatic detection of input sources and automatic switching to ensure uninterrupted power supply. Protection: builtin mechanical and electrical interlocking plus multiple protection functions to control switching sequence and protect connected circuits. Modularity: supports a range of addon modules to add features or adapt to specific installation requirements. Size and model: NXZHM125/4A80A, Model NXZHM125/4A 80A. Performance: smooth contact operation and stable switching behavior for consistent, repeatable performance under regular operation. Build quality: engineered for reliable electrical contact engagement and longterm service life. Compatibility and integration Compatible with common power source arrangements where automatic transfer or redundant power switching is required. Modular design allows integration with monitoring, control, and auxiliary modules commonly used in power distribution systems. Suitable for panel mounting and integration into existing switchgear layouts where an 80A rated transfer solution is required. Typical applications Commercial buildings: maintain power to lighting, elevators, and essential systems during changeover between utility and backup generator power. Industrial facilities: protect production lines and equipment from interruptions by automatically switching to backup sources and minimizing downtime. Communications and IT sites: keep critical communications equipment and network infrastructure powered during source transitions. Why this unit stands out Combines automatic operation with mechanical interlock to provide both convenience and safety in switching sequences. Long service life through stable mechanical design and smooth contact switching reduces lifecycle cost and maintenance needs. Modular expandability allows the unit to be adapted to evolving operational requirements without full replacement. Use considerations Confirm system compatibility and required auxiliary modules for your specific installation needs. Follow standard electrical installation and commissioning procedures to ensure correct interlock and protection settings. This NXZHM125/4A80A Model NXZHM125/4A 80A unit is intended for installations that require automated, reliable power source switching with modular flexibility and durable performance.