1pcs 4520 Generator Controller with 4520 mkii Auto Mains Failure Control Panel Key benefits Automates mains failure response so the generator starts and stops without manual intervention. Centralizes generator control and mains monitoring for simpler operation and reduced downtime. Designed for direct compatibility with 4520 and 4520 mkii control systems to simplify replacement or upgrade. What this product does Auto Mains Failure (AMF) control panel that detects mains loss and initiates automatic generator start and transfer. Provides local control and status feedback for generator operation, with straightforward user controls and indicators. Lets operators configure basic control behavior to match site requirements. Important attributes Model compatibility: built to work with controllers identified as 4520 and 4520 mkii. Quantity: 1 piece of 4520 Generator Controller paired with 4520 mkii AMF control panel. Form factor: compact control panel suitable for mounting in standard generator enclosures. Construction: durable controller and panel components engineered for generator control applications. Performance: automatic mains failure detection, automatic start and stop sequences, and centralized control functions. Installation and use Designed for straightforward integration into existing generator systems that accept 4520 series controllers. Wiring terminals and control interfaces follow common generator control conventions to help reduce installation time. Suitable for onsite configuration by trained technicians familiar with generator control wiring and setup. Typical applications Backup power systems for small commercial buildings where automatic transfer and unattended operation are needed. Remote equipment sites or telecom shelters that require automated generator start on mains failure. Construction or rental generator setups where quick replacement of a 4520 series controller and AMF panel is required. Package contents 1pcs 4520 Generator Controller with 4520 mkii Auto Mains Failure Control Panel Color: 4520mkii Notes Intended for use with compatible generator control wiring and electrical systems. Installation and configuration should be performed by qualified personnel in accordance with local electrical codes.