Phoenix Contact SOL-SC-2ST-0-DC-2MPPT-1300FS PV string combiner box, 2 MPPT, 4 stringy, 1300 V DC, IP65 1137059

Solar installers and PV system integrators use the Phoenix Contact SOL-SC-2ST-0-DC-2MPPT-1300FS as a central DC combiner for photovoltaic arrays with up to four input strings. This wall-mounted enclosure consolidates two MPPT channels, each accepting two strings, into two DC outputs for direct connection to the inverter.

Key specifications

• Number of MPPTs: 2
• Total input strings: 4 (2 per MPPT)
• Maximum system voltage: 1300 V DC
• Surge protection: Type II DC SPD
• Integrated DC load disconnector
• Enclosure rating: IP65, UV-resistant polycarbonate
• Input connectors: MC4
• Output connection: Screw terminals
• Rated insulation voltage: 1500 V DC
• Rated impulse withstand voltage: 6 kV
• Ambient temperature: -25 °C to +60 °C
• Mounting: Wall

Why choose it

The unfused design reduces component count and maintenance, while the integrated disconnector and Type II surge protection safeguard the array. The IP65 polycarbonate enclosure withstands outdoor exposure, and the 1300 V rating supports modern high-voltage PV systems.

Ideal use cases

• Residential and commercial rooftop PV systems
• Ground-mounted solar arrays with multiple strings
• Inverter input consolidation for 2-MPPT configurations

Good to know

The combiner box is certified according to IEC 61439-2 and VDE 0660-600-2. It does not include string fuses; overcurrent protection must be provided externally if required by local codes.