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Combiner boxes

Combiner boxes are an integral part of many PV installations, serving as the “meeting place” where the wiring from array series strings come together in parallel connections.


In all but the smallest PV systems, modules are wired together in series strings, where the positive leads of one module are connected to the negative leads of the next module. This results in cumulative voltage output, with current (amps) staying the same. The box where the output wires from multiple series strings are joined is the combiner box. Rated for outdoor use, it contains overcurrent protection devices (OCPDs) and the necessary bus bars and terminals for combining the inputs.

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OutBack Power FireRaptor pigtail wire for first rapid shutdown unit OBFRS-SIGCAB1.8-F OutBack Power FireRaptor pigtail wire for first rapid shutdown unit OBFRS-SIGCAB1.8-F

OutBack Power FireRaptor pigtail wire for first rapid shutdown unit OBFRS-SIGCAB1.8-F, 053-03332

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Enphase X-IQ-NA-HD-125A Hold down kit for use in X-IQ Combiner Boxes Enphase X-IQ-NA-HD-125A Hold down kit for use in X-IQ Combiner Boxes

Enphase X-IQ-NA-HD-125A Hold down kit for use in X-IQ Combiner Boxes

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01601, DC Pass Thru Kit, 1 Strings, Terminal Block DC Pass Thru Kit, 1 Strings, Terminal Block, 01601, Soladeck

01601, DC Pass Thru Kit, 1 Strings, Terminal Block, Soladeck, 053-00250

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01611, AC Pass Thru Kit, 1 Circuit, Terminal Block AC Pass Thru Kit, 1 Circuit, Terminal Block, 01611, Soladeck

01611, AC Pass Thru Kit, 1 Circuit, Terminal Block, Soladeck, 053-00255

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01602, DC Pass Thru Kit, 2 Strings, Terminal Block DC Pass Thru Kit, 2 Strings, Terminal Block, 01602, Soladeck

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SolaDeck 01621 Fused pass through kit one string 053-00266 SolaDeck 01621 Fused pass through kit one string 053-00266

SD-0766-41 AD, Soladeck PV Enclosure Combiner, AC/DC, Tile Roof Mount, DIN mount breakers, RSTC Enterprises, 053-00224

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01603, DC Pass Thru Kit, 3 Strings, Terminal Block DC Pass Thru Kit, 3 Strings, Terminal Block, 01603, Soladeck

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01604, DC Pass Thru Kit, 4 Strings, Terminal Block DC Pass Thru Kit, 4 Strings, Terminal Block, 01604, Soladeck

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01613, AC Pass Thru Kit, 3 Circuit, Terminal Block AC Pass Thru Kit, 3 Circuit, Terminal Block, 01613, Soladeck

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Snapnrack Junction Box R, 242-01104, UL listed, 6x5x3, Din mounts, Snapnrack Junction Box R, 242-01104, UL listed, 6x5x3, Din mounts,

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01614, AC Pass Thru Kit, 4 Circuit, Terminal Block AC Pass Thru Kit, 4 Circuit, Terminal Block, 01614, Soladeck

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E987R, Junction Box, Rigid, NEMA 6P, 6 X 6 X 4 IN, Carlon Junction Box, Rigid, NEMA 6P, 6 X 6 X 4 IN, E987R, Carlon

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Carlon Junction Box, Rigid, NEMA 6P, 6 X 6 X 6in., E989RRUPC, 048-06600 Carlon Junction Box, Rigid, NEMA 6P, 6 X 6 X 6in., E989RRUPC, 048-06600

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OutBack Power FW-CBUS-8 FLEXware Combiner Bus 8 Din OutBack Power FW-CBUS-8 FLEXware Combiner Bus 8 Din

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Snapnrack Junction Box XL with Comp Kit 242-92121 Snapnrack Junction Box XL with Comp Kit 242-92121

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0786K-2C, DC Fused Combiner Kit, 2 Strings, Termin DC Fused Combiner Kit, 2 Strings, Terminal Block, 0786K-2C, Soladeck

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0786K-3C, DC Fused Combiner Kit, 3 Strings, Termin DC Fused Combiner Kit, 3 Strings, Terminal Block, 0786K-3C, Soladeck

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E989R, Junction Box, Rigid, NEMA 6P, 12IN X 12IN X 6in., Carlon Junction Box, Rigid, NEMA 6P, 12IN X 12IN X 6in., E989R, Carlon

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E989N, Junction Box, Rigid, NEMA 6P, 8 X 8 X 4 in., Carlon Junction Box, Rigid, NEMA 6P, 8 X 8 X 4 in., E989N, Carlon

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SolaDeck, NEMA 3R Enclosure, Gray, 5 Position Ground, 0799-5G SolaDeck 0799 Roof Mount Enclosure Combiner UL 1741 NEMA 3R

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0786K-4C, DC Fused Combiner Kit, 4 Strings, Termin DC Fused Combiner Kit, 4 Strings, Terminal Block, 0786K-4C, Soladeck

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OutBack Power FireRaptor module level rapid shutdown unit OBFRS-01 OutBack Power FireRaptor module level rapid shutdown unit OBFRS-01

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MNPV-3, PV Combiner Box, No Disconnect, 3 Breakers, MidNite Solar PV Combiner Box, No Disconnect, 3 Breakers, MNPV-3, MidNite Solar

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MNPV-6, PV Combiner Box, For 150 VDC charge controllers and 600 VDC gridtie inverters, MidNite Solar Combiner Box, For 150VDC charge controllers / 600VDC gridtie inverters, MNPV-6, MidNite Solar

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MNPV2-1000, String Combiner, 40 A, 1000 VDC, NEMA String Combiner, 40 A, 1000 VDC, NEMA 3R, 2 String, no fuses or fuse holders, MNPV2-1000, Midnite Solar

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MNPV6-250, PV Combiner Box, No Disconnect, For use with 300VDC breakers, 3 Position, MidNite Solar PV Combiner Box, No Disconnect, For 300VDC breakers, 3 Position, MNPV6-250, MidNite Solar

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OutBack Power FireRaptor rapid shutdown actuator 120VAC power supply OBFRS-ESW1 OutBack Power FireRaptor rapid shutdown actuator 120VAC power supply OBFRS-ESW1

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MNPV4-1000, String Combiner, 60 A, 1000 VDC, NEMA String Combiner, 60 A, 1000 VDC, NEMA 3R, 4 String, no fuses or fuse holders, MNPV4-1000, Midnite Solar

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SD-0766-41 AD, Soladeck PV Enclosure Combiner, AC/DC, Tile Roof Mount, DIN mount breakers, RSTC Enterprises Soladeck Enclosure Combiner, AC/DC, Tile Roof Mount, DIN mount, SD-0766-41 AD, RSTC Enterprises

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MNPV-12, PV Combiner Box, No Disconnect, 12 Breakers, MidNite Solar PV Combiner Box, No Disconnect, 12 Breakers, MNPV-12, MidNite Solar

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