S1200-MC4 | High-power commercial dual-input power optimizer with 0.1 m short inputs and 5.3 m output lead, supporting up to 1.2–1.3 kW 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). Rated input DC power up to 1200–1300 W per optimizer (up to ~650 W per module). Short 0.1 m input leads for tidy module-level mounting; long 5.3 m (+) output lead for centralised string home-runs. High peak efficiency of 99.5% with module-level MPPT to maximise system yield. Supports high string current and longer strings for reduced BOS cost. SafeDC and Sense Connect technologies for automatic voltage shutdown and connector overheat detection. Module-level monitoring and fault localisation via SolarEdge monitoring platform. Electrical Specifications Rated Input DC Power 1200–1300 W 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 15 A DC Peak Efficiency 99.5% Connection Ratio 1 optimizer per 2 modules (series) Connector Type MC4 compatible Cables, Mechanics & Environment Input Cable Length 0.1 m (per input) Output Cable Length (+) 5.3 m Output Cable Length (–) 0.1 m Dimensions (L×W×H) 129 × 155 × 59 mm (approx.) Weight ~1.1 kg Enclosure Rating IP68 Operating Temperature -40°C to +85°C Mounting Single-bolt frame or rail mounting Warranty 25 years System & Safety SafeDC automatic voltage shutdown when inverter or grid is off for installer and firefighter safety. Sense Connect continuously monitors connector temperature to detect bad terminations and prevent arcs. Enables long strings (up to ~23 kW per string with compatible inverters) and multiple orientations/tilts in one string. Ideal for commercial rooftops and ground-mounts using large-format or bifacial modules. MPN: S1200-MC4 (S1200-1GM4MBV short-input variant)Model: SolarEdge S1200 Commercial Power Optimizer – Short Input 0.1 m Cost-effective, high‑power commercial optimizer for modern large-format modules, combining long string capability, module‑level safety and monitoring in SolarEdge systems.