S1400-MC4 | High-power commercial dual-input optimizer with 0.1 m short inputs and 5.7 m output lead, supporting up to 1400 W of high-power or bifacial PV modules. Key Features Specifically designed to work with SolarEdge commercial three-phase inverters. Connects two high-power / bifacial modules in series to one optimizer (2:1 connection). Supports module power up to 700 W per module, 1400 W total per optimizer. Short 0.1 m input leads for neat module-level mounting; long 5.7 m output for flexible string home-run. Mitigates all types of module mismatch (orientation, shading, soiling, binning, ageing). High peak efficiency of 99.5% and weighted efficiency of ~98.8%. SafeDC and Sense Connect technologies for enhanced connector and arc-fault safety. Enables up to 30.4 kW per string for reduced BOS costs (fewer strings, cables and DC hardware). Electrical Specifications Rated Input DC Power 1400 W Absolute Max Input Voltage (Voc) 125 V DC MPPT Operating Range 12.5 – 105 V DC Max Short Circuit Current (Isc) 20 A DC Max Output Current 24 A DC Max Output Voltage 80 V DC Peak Efficiency 99.5% Connection Ratio 1 optimizer per 2 modules Cables, Connectors & Mechanics Input Cable Length 0.1 m (per input) Output Cable Length (+) 5.7 m Output Cable Length (–) 0.1 m Connector Type MC4 compatible Enclosure Rating IP68 Dimensions (L×W×H) 165 × 129 × 52 mm (approx, body only) Weight ~1.09 kg System & Safety SafeDC rapid shutdown reduces module voltage to touch-safe levels on grid/inverter shutdown. SolarEdge Sense Connect monitors connector temperature to detect poor terminations and prevent arcs. Module-level monitoring and fault localisation via the SolarEdge monitoring platform. Ideal for commercial rooftops, carports, and ground-mounts using 182–210 mm cell, G12 and bifacial modules. MPN: S1400-MC4 (S1400-1GM4MBWD short-input variant)Model: SolarEdge S1400 Commercial Power Optimizer – Short Input 0.1 m High‑capacity, short‑input commercial optimizer for modern large-format modules, delivering maximum string power, layout flexibility and module-level safety in SolarEdge systems.