Product model: NH4232/4SZX Switch type: NH42SZ dual power automatic transfer switch (PC level) Key benefits Ensures continuous power: automatic detection and fast switching between primary and secondary power sources keeps equipment running and reduces downtime. Increased safety and reliability: mechanical and electrical interlocking prevents both sources from closing at the same time, avoiding short circuits; builtin multiple protection functions add layers of operational security. Durable operation: stable mechanical design and smooth contact switching reduce wear and extend service life for longterm use. Flexible and expandable: modular design supports a variety of functional modules for tailored configurations and easier future upgrades to improve transfer performance. Main features Function: Automatic transfer between two power sources with intelligent detection and control logic for reliable, hands operation. Compatibility: Intended for systems that require a dual power automatic transfer switch. Use model NH4232/4SZX and NH42SZ switch type to match panel layouts and control interfaces as required by your electrical system. Size and installation: Model NH4232/4SZX corresponds to the specified compact form factor for this product family. Check technical drawings for exact mounting and clearance requirements. Material and construction: Engineered with robust mechanical components and reliable electrical contacts to ensure stable switching behavior and reduced maintenance needs. Performance: Smooth contact action and precise interlocking deliver consistent transfer times and repeatable operation under frequent switching conditions. Typical applications Commercial buildings and multitenant facilities: Automatic transfer between utility power and onsite generators to maintain lighting, HVAC, and essential services during outages. Industrial and manufacturing sites: Maintain continuity for production lines during grid disturbances or scheduled maintenance, minimizing production losses. Data centers, telecom rooms, and critical infrastructure: Provide reliable source transfer for backup power systems that support servers, network equipment, and emergency systems. Why choose this model Model NH4232/4SZX provides automated, dependable source transfer with mechanical and electrical interlocks to reduce the risk of faults during switching. Modular expandability allows to meet specific operational requirements without replacing the main switching unit. Stable design and smooth contacts translate into longer service intervals and predictable lifetime performance. For results, confirm compatibility with your system control signals and physical installation space before or installing model NH4232/4SZX.