NLQ4125/2P 100A 63A Photovoltaic millisecondlevel switching uninterruptible dual power automatic transfer switch Size: 2P 100A Product Type: PC Overview This automatic transfer switch provides uninterruptible, millisecondlevel transfer between two power sources for photovoltaic and other dualpower applications. The NLQ4125/2P 100A 63A is designed to maintain continuous power to critical loads while enabling safe, fast switching when the primary source becomes unavailable. Key benefits Fast, reliable switching: Millisecondlevel transfer minimizes interruption to connected equipment, preserving operation and reducing risk of data loss or equipment restart. Dualpower continuity: Automatically transfers load between two power sources to maintain continuous power without manual intervention. Clear specification and capacity: 2pole configuration with a 100A rating and 63A reference, model NLQ4125/2P 100A 63A. Applicationfocused design: Product Type PC to improve conversion rates in photovoltaic installations and other systems requiring efficient power management. Durable operation: Engineered for repeated switching cycles in power generation and backup applications. Functions and performance Automatic detection and transfer between primary and secondary power sources. Millisecondlevel switching response to avoid visible interruptions on sensitive loads. Twopole design suitable for singlephase dualsupply arrangements. Rated current and model identification provided for straightforward system integration. Compatibility and installation Intended for use with photovoltaic inverter systems, battery energy storage systems, mains and standby generator arrangements, and other dualsource power configurations. Compatible with typical distribution wiring practices for 2pole automatic transfer switches rated at 100A. Compact footprint suitable for integration into existing control panels or PV combiner and distribution assemblies. Materials and construction Built for electrical switching duty and repeated transfers in power systems. Construction supports secure electrical connections and stable mechanical operation under normal operating conditions. Practical use scenarios Solar PV system with grid and inverter sources: Automatically switch the load to inverter output when grid power fails, supporting continuous operation of inhome or remote equipment. Facility backup with mains and generator: Transfer essential circuits from mains to generator in milliseconds to prevent interruption to critical machinery or systems during power outages. Remote telecommunications or monitoring station: Maintain continuous power by switching between primary feed and secondary backup source to keep communication equipment online. Why choose this model Provides millisecondlevel, uninterruptible transfer in a compact 2pole 100A format. Explicit model and ratings make specification and procurement straightforward: NLQ4125/2P 100A 63A. Designed for photovoltaic and general dualpower applications where fast, automatic switching is required. Notes for selection Verify compatibility with system voltage, inverter specifications, and downstream protection devices. Ensure installation follows local electrical regulations and wiring standards.