S1200-LI-MC4 | High-power commercial dual-input optimizer with 1.6 m long inputs and 5.3 m output lead, supporting up to 1.2 kW of high-power or bifacial PV modules in SolarEdge commercial systems.

Key Features

• Designed for use with SolarEdge three-phase commercial inverters.
• Connects two high-power / bifacial modules in series to one optimizer (2:1 connection).
• Rated input power up to 1200 W (up to 600 W per module with +5% tolerance allowed).
• Long 1.6 m input leads for easy reach on large-format modules in portrait or landscape.
• Long ~5.3–5.4 m positive output lead for centralised string routing and reduced junction boxes.
• Superior peak efficiency of 99.5% with module-level MPPT to minimise mismatch and shading losses.
• Supports higher operating current; when used with inverters having 25 A fuses, upgrade to 30 A using kit FLD-DCD-SEL1-FUSE before commissioning.
• Sense Connect and SafeDC technologies for advanced connector monitoring and rapid voltage shutdown.

Electrical Specifications

Rated Input DC Power	1200 W
Max Input Voltage (Voc)	125 V DC
MPPT Operating Range	12.5 – 105 V DC
Max Short Circuit Current (Isc)	15 A DC
Max Output Current	15 A DC
Peak Efficiency	99.5%
Connection Ratio	1 optimizer per 2 modules (series)
Communication	Power line with SolarEdge inverter

Cables, Mechanics & Environment

Input Cable Length	1.6 m (each input)
Output Cable Length (+)	5.3–5.4 m
Output Cable Length (–)	0.1 m
Connector Type	MC4 compatible
Dimensions (L×W×H)	129 × 155 × 59 mm (approx.)
Weight	~1.1 kg
Enclosure Rating	IP68 / NEMA 6P
Operating Temperature	-40°C to +85°C
Mounting	Single-bolt module frame or rail mounting
Warranty	25 years

System & Safety

• SafeDC module-level voltage shutdown when inverter or grid is off, improving installer and firefighter safety.
• Sense Connect continuously monitors connector temperature on output connectors for early detection of bad terminations.
• Module-level monitoring and fault localisation via SolarEdge monitoring platform.
• Enables flexible string design with multiple orientations and tilts, ideal for large commercial rooftops and ground-mounts.

MPN: S1200-LI-MC4 (S1200-1GMYMBV long-input variant)
Model: SolarEdge S1200 Commercial Power Optimizer – Long Input 1.6 m

Long‑input commercial optimizer tailored for large‑format and bifacial modules, combining layout flexibility, high string power and advanced safety in SolarEdge commercial PV systems.