Automatic Transfer Switch Controller HAT520N Generator ATS Controller Dual Power Smart Fault Detection

HAT520N ATS Controller for Automatic Transfer Switch and Generator Set Description The HAT520N is a microprocessor based dual power ATS controller designed for NO Breaking ATS applications. It continuously monitors two power sources and makes precise, timed switching decisions to maintain power continuity and protect connected equipment from abnormal voltage and frequency conditions. The controller also provides a communication interface for remote monitoring and control. Key benefits Reliable automatic transfer between utility and generator power to minimize service interruptions. Precise protection against common supply faults, reducing risk of equipment damage from voltage and frequency anomalies. Remote monitoring and control capability to support centralized management and faster response. Compact footprint and clear installation dimensions for straightforward integration into existing switchgear. Core functions Dual power automatic switching control for NO Breaking ATS. Detects twoway threephase voltages and twoway singlephase voltages. Monitors and responds to: loss of power, overvoltage, undervoltage, overfrequency, underfrequency, loss of phase, and incorrect phase sequence. Executes ATS switchover after configurable delays and issues generator start signal when an abnormal condition persists on one source. LINK communication port enables remote measurement, remote communication, and remote control functions. Technical specifications Model: HAT520N Suitable for: NO Breaking ATS Working power range: AC 170277 V Overall dimension: 139 x 120 x 50 mm Installation dimension: 130 x 111 mm Operating temperature: 25 to +70 C Weight: 0.49 kg Practical applications Commercial buildings and office complexes where uninterrupted power is required for critical systems and lifecycle continuity. Telecom sites and network equipment rooms that require automatic, reliable transfer and remote status reporting. Small to medium industrial installations and standby generator systems that need automatic start signals and protection against phase and frequency faults. Installation and compatibility notes Compact enclosure and specified installation dimensions allow integration into existing control panels or ATS cabinets. Designed to work with NO Breaking ATS configurations and generator sets that accept standard start input signals. Use proper wiring and configuration procedures as required by the ATS and generator manufacturer to ensure correct operation. The HAT520N provides a focused set of monitoring and control functions for automatic transfer applications, delivering dependable switching, fault detection, and remote interface capability in a compact controller.