Automatic Transfer Switch NH4232/4SZ (Size NH4232/4SZ) Overview This automatic transfer switch provides reliable, uninterrupted switching between primary and secondary power sources. It combines automated detection, interlocking protection, smooth contact operation, and modular expandability to meet demanding power continuity requirements. Key benefits Continuous power: automatic detection and switching of power supply ensures rapid transfer and minimizes downtime. Short circuit prevention: mechanical and electrical interlocking prevents simultaneous closure of both sources, reducing the risk of a power short circuit. Durable performance: stable internal design and smooth contact switching extend operational life and reduce maintenance needs. Flexible configuration: supports a range of functional modules for and future expansion to match specific site requirements. Improved system availability: multiple protection functions and automated logic help maintain service continuity when sources change. Main features Model and size: NH4232/4SZ, size NH4232/4SZ. Function: automatic transfer between two power sources with monitoring and control logic for safe switching. Protection: mechanical and electrical interlocking plus multiple protection functions to handle abnormal conditions. Modularity: accepts optional functional modules to add features such as remote control, signaling, or timing functions. Performance: engineered for stable contact operation and long service life under repeated switching cycles. Typical applications Commercial buildings: automatic transfer between utility mains and standby generators to maintain lighting, elevators, and critical systems. Industrial sites: switching power between main supply and backup sources for production lines and control equipment. Telecommunications and IT facilities: preserving power continuity for network equipment and servers during source changes. Notes Designed for installation where reliable, automated power source transfer and expandability are required. Model NH4232/4SZ supports modular upgrades to adapt to changing operational needs.