SMA SBCB-6-3R Combiner Box

SMA SMC SBCB-6-3R 6-Input Non-Fused PV String Combiner Box

** Fuses sold separately **

The SMA SMC SBCB-6-3R 6-Input PV String Combiner Box (MPN: SBCB-6-3R) is designed to streamline solar array conductor wiring, consolidating up to 6 DC PV string inputs into a single combined output feed. Engineered for outdoor wall-mounted installation, this non-fused combiner unit features a spacious NEMA 3R enclosure that provides generous wire-bending room to simplify conductor termination and cut installation time.

Oversized internal bus-work minimizes electrical resistance and thermal buildup, delivering dependable high-efficiency operation for residential and commercial solar arrays rated up to 600V DC and 90A total current. This non-fused unit allows installers to customize overcurrent protection for specific array configurations, with compatible string fuses sold separately.

Specifications:

• Manufacturer Part Number: SBCB-6-3R
• Manufacturer: SMA
• Product Type: PV String Combiner Box

Mechanical:

• Input Circuits: 6
• Poles: 6
• Circuits: 6
• Maximum Voltage: 600 V DC
• Current Rating: 90 A
• Enclosure Rating: NEMA 3R
• Configuration: Non-fused
• Application: Solar PV string combining
• Installation: Outdoor/wall mounted