Product: Uninterruptible Dual Power Automatic Transfer Switch NLQ4125/4P Key benefits Millisecond level switching minimizes interruption when changing between power sources, reducing downtime and maintaining continuity for critical loads. Compact 4P/20A form factor and 0.8 kg unit weight make installation space efficient and easier to handle. Available in multiple current ratings 100A, 80A, and 63A to match different load requirements. Designed to improve conversion rates between power sources, providing faster and more reliable transfer compared to slower manual or mechanical switching. Main features Function: Automatic transfer switch for dual power supply, uninterruptible operation with millisecondlevel transfer speed. Model: NLQ4125/4P. Size and capacity: 4P/20A configuration; variants available for 100A, 80A, and 63A current ratings. Voltage compatibility: 3C rated, suitable for systems with rated voltages above 440V. Weight: Approximately 0.8 kg per unit. Performance focus: Fast switching response for critical applications that require uninterrupted power during source changeover. Compatibility and installation Compatible with standard three phase dual power systems and common distribution panels that accept 4 pole transfer devices. Suited for installations where compact size and low weight are important, such as equipment racks, control cabinets, and small distribution boards. Can be integrated with upstream generators, utility mains, or inverter systems that operate at rated voltages above 440V. Materials and reliability Designed for reliable electrical switching and frequent use in automatic transfer applications. Selection of appropriate current rating helps align device thermal and mechanical capacity with the intended load. Practical applications Data center or server room: Provide uninterrupted transfer between mains and backup generator or UPS to prevent server reboots and data loss during source transition. Industrial control panels: Maintain continuity of control circuits and critical motors during scheduled source changes or unexpected mains loss. Commercial buildings and retail sites: Ensure lighting, security systems, and point of equipment remain powered while switching between utility and backup power. Why choose this type of transfer switch Fast, automatic transfers reduce operational disruption when switching power sources. Multiple current rating options make it easy to match load demands without oversizing. Compact size and low weight simplify mounting and integration into existing electrical cabinets. Technical summary Product type: Uninterruptible dual power automatic transfer switch Model: NLQ4125/4P Pole and size: 4P/20A Current ratings: 100A, 80A, 63A Rated voltage range: 3C rated, above 440V Unit weight: 0.8 kg For safe and performance, select the correct current rating for your load and follow local electrical installation standards when integrating the NLQ4125/4P automatic transfer switch.