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Transition Pass-through Boxes for Solar Power System
Solar Transition Pass Through Box
Series: SSTB-XL


     All UL Listed Components

     NEMA 4X, UV Stabilized Rugged Enclosures

     Din-rail Mounted Terminal Block Connections

     Models with 3, 6, 9 or 12 Positions + Ground Block

     Terminal Blocks Rated 57A, 1000V Max

     For Wire Size 6-16 AWG


  • Residential Solar Power Systems
  • Boat, RV or Camper Solar Power System

SSTB-XL Series of Solar Transition Pass-through Boxes provide a quick, simple, and easy wiring transition between a micro-inverter trunk cable and standard stranded wire. All connections can be made using only a single #2 flathead screwdriver. This eliminates the need for any wire nuts or crimp type connectors. The included shorting bar assembles that are included enable combinations of 2 strings to be made, eliminating the need panel Y-connectors, or additional connector boxes. 3-hole cable glands are included by not installed. Enclosure holes must be drilled in the field. This is done so that you have the option to use conduit fittings for wire entry and exit rather than the cable glands.

General Specifications
Enclosure Rating: NEMA 4X, UL 508
Enclosure Material: All PC/PBT Blended Plastic or Fiberglass Reinforced Plastic with Stainless Steel Hinge
Enclosure: Material: Painted Steel
Max Current/Voltage: 57A, 1000 V or 500 V. UL, CSA, IEC/VDE
Min/Max Wire Size: 16 - 6 AWG
Terminal Block Torque: 14 lb. in. (cULus Recognized), 9 lb. in. (CSA Certified), 0.8 Nm (VDE Approved)
Max Temperature: -40 to131 F (-40 to 55 C)

Available Models with PC/PBT Blended Plastic Enclosure
Models: Terminal Blocks Shorting Bars Included Wire Entry Cable Glands Included Enclosure Size
SSTB-XL-3-PE 3 One 2-position bar One 3-hole gland 5.9 x 5.9 x 3.6"
SSTB-XL-6-PE 6 Two 2-position bars Two 3-hole glands 5.9 x 5.9 x 3.6"
SSTB-XL-9-PE 9 Four 2-position bars Three 3-hole glands 7.9 x 5.9 x 3.6"
SSTB-XL-12-PE 12 Six 2-position bars Four 3-hole glands 7.9 x 5.9 x 3.6"