DSE4520 MKII Auto Mains Failure Control Module (4520-05) Reliable Automatic Mains Failure Control The DSE4520 MKII is designed for generator systems that require automatic transfer between mains (utility) and backup power. It continuously monitors engine and electrical parameters, providing reliable switching during power loss. With flexible configuration options and built-in protections, this controller is suitable for a wide range of diesel, gas, and petrol generator applications. Key Features • Automatic mains failure (AMF) control• 3-phase generator and mains sensing • Generator and load power monitoring (kW, kVA, pf) • J1939 CAN support and alternator sensing • Real-time clock and event logging • Configurable inputs, outputs, and staged loading • USB configuration via DSE software • Large backlit LCD display with alarm indication Technical Specifications • DC Supply: 8–35V continuous • Voltage Range: up to 415V (phase to neutral) • Frequency Range: 3.5 Hz to 75 Hz • Operating Temperature: -30°C to 70°C • Dimensions: 140 x 113 x 43 mm Full datasheet available upon request. Ready to order? Add to cart now or message us for a quick confirmation before checkout.