SMA 28 Circuit Combiner Box, NEMA 3R

SMA America
SCCB PV Array Combiner Boxes
SCCB 12 & SCCB 28

Introducing SMA America’s SCCB Combiner Boxes. The SCCB combiners are available in sizes ranging from 6 to 52 PV inputs to provide greater flexibility and expandability in system design. Oversized bus-work adds high efficiency and dependability where it’s needed most. The large NEMA 3R/4 enclosure provides ample room for conductors which reduces installation time. Designed with installers in mind, we know you’ll find the new SCCB Combiner Boxes a welcome addition to our great line of inverter products.

Benefits

• Greatly simplifies input and output wiring
• Available in 6 to 52 circuit configurations
• Compact, rugged low cost design
• Reliable bus-work for efficient high current conductor combining
• PV positive wires all land directly on Touch SafeTM fuse holders
• Sturdy NEMA 3R/4 wall mount steel enclosure
• ETL Listed to UL 17

Please note: FUSES ARE NOT INCLUDED

SMA’s new line of SBCB and SCCB combiner boxes is a culmination of many years worth of experience with the difficulties of combining large numbers of PV strings. This simple component has generally become known as a common point of failure in large PV arrays. The SMA design minimizes the number of components, resulting in the most robust, easy to install, low cost and reliable combiner boxes in the PV industry. PV wires are landed directly to individual Touch SafeTM fuse holders. The fuse holder outputs are combined into heavyduty bus-bar combs where the output wires are connected to over-sized mechanical lugs. All wiring is routed in an orderly manner through the enclosure, minimizing the chance of shorting caused by pinched or abraded wires. Individual PV string circuit fuses may be safely deenergized and removed by opening the Touch SafeTM fuse holders. No special tools are required. Output wires may be paralleled keeping wire sizes small and easy to pull through conduit. Combiner boxes may be paralleled to increase the total number of PV strings. The steel enclosure is rated for outdoor installations and all SMA combiner boxes are ETL listed to UL1741. Please call for availability of models not listed in the chart below or for special order configurations.