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Balance of System
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The balance of system includes supplies such as wiring, DC disconnects, combiner boxes, system monitoring devices and more.

Carlon Molded Nonmetallic Junction Boxes, 6P Rated - It's another first from Carlon - the first nonmetallic junction boxes UL Listed with a NEMA 6P rating per Section 314.29, Exception of the National Electrical Code. Manufactured from PVC or PPO thermoplastic molding compound and featuring foam-in-place gasketed lids attached with stainless steel screws, these rugged enclosures offer all the corrosion resistance and physical properties you need for direct burial applications.



 CCBF, CCBS and CCBSS Solar Combiners are designed and built to minimize system costs by providing maximum flexibility. Solar Combiner Solutions offer a range of 1 to 48 input circuits, with a non-metallic (NEMA 4X) enclosure, engineered to perform in the harshest environmental conditions. Built in accordance with UL1741 standard, providing plenty of wiring room for ease of installation.


Milbank Junction Boxes - Milbank Electrical Enclosures are designed as junction boxes, pull boxes, current transformer enclosures, equipment boxes and wireways. Screw covers and hinged covers are available for most styles.


Solectria Fused String CombinersSTRCOM fused string sizing combiners are heavy duty PV combiners for use in commercial, industrial and utility-scale PV systems. Listed to UL1747/IEEE1547/CSA22.2#107.1, they are NEMA 4 sealed construction for rooftop mounting on array, roof, walk-up, etc. They come with your choice of 600VDC rated fuses installed. Polyester powder-coat paint and heavy gauge steel for long life. Ample wire space for easy array installation.



Eaton Solar Source Combiner Box

  • ETL listed to ULT 1741 standard
  • Touch-safe midget class fuse holders (non load-break) are rated for 600 Vdc continuous duty (fuses not included)
  • Poured-in-place gaskets for superior moisture resistance
  • Suitable for either positive or negative grounded arrays
  • Available in 8, 10, 12, 16 and 24 circuit configurations
  • NEMA 3R or NEMA 4 powder-coated steel enclosures
  • White back pan with high-contrast labeling for easier, faster installation
  • Padlockable latch
  • Spec Sheet 

Source Combiner Box


Eaton Solar Array Combiner Box

  • ETL listed to UL 1741 standard
  • Rated for 600 Vdc continuous duty
  • Poured-in-place gaskets for superior moisture resistance
  • Suitable for either positive or negative grounded arrays
  • Available in 6 and 12 circuit configurations
  • 100 or 200A input fuse holders (Class R)
  • Spec Sheet 



Array Combiner box

Milbank 100A Meter Socket- U5929 Ring Type & U5934 Ringless
  • Designed for Solar applications
  • 100 amp continuous rating
  • Isolated neutral option
  • UL Listed
  • Type 3R construction for durable outdoor use, lockable and sealable
  • Wire terminations accept copper or aluminum conductors
  • Accepts standard meter socket hubs
  • Made in USA


Eaton Solar Disconnect

  • Marked as suitable for NEC 690 PV applications up to 600 Vdc
  • UL 98 listed
  • All switches are single-pole and suitable for switching one circuit
  • Clear polycarbonate deadfront to guard against accidental contact with live parts
  • Isolated ground terminals (neutral) for grounded conductors
  • Ground lug for equipment grounding conductor
  • Fusible and non-fusible configurations-Class R fuse clips standard
  • Available for Flex Center modifications (windows, pilot lights, 316 grade stainless, and so on)
  • Spec Sheet 


Southwire Type THHN or THWN-2 conductors are primarily used in conduit and cable trays for services, feeders and branch circuits in commercial or industrial applications as specified in the National Electrical Code.

  • 600 Volt
  • Copper Conductor
  • Thermoplastic Insulation/Nylon Sheath Heat, Moisture, Gasoline, and Oil Resistant
  • Sizes 8 AWG and Larger Rated THWN-2. All Stranded Sizes Rated MTW and THWN
  • Sizes 14 through 6 AWG Rated AWM (105°C). Sizes 14 through 1 AWG Rated VW-1
  • Spec Sheet 




Conduit & Fittings


Conduit & Fittings


Erico CADDY PYRAMID 50 Fastener - Provides an easy method for supporting up to 50 lb loads of pipe, conduit and equipment.  CADDY PYRAMID dramatically reduces installation time by replacing other labor-intensive support methods such as wood blocks, straps and clips.

  • Supports up to 50 lb loads
  • Electro-galvanized (EG) finish provides superior corrosion protection
  • Polyethylene closed-cell foam and 16-gauge steel construction
  • Metal top designed to shed water and minimize water collection on foam base
  • Absorbs shock and vibration
  • Protects roof membrane
  • The 4" high model has a 10-3/8" x 4" footprint
  • Spec Sheet 


Erico CADDY PYRAMID ST Series- Fixed Strut Supports - Small Base with 10" Usable Strut Length, 4" Fixed Height off Roof Surface

  • Provide fixed height mounting platform 4" or 6.4" off roof surface and 10" or 16" usable strut length
  • Maximum recommended load up to 1500 lbs
  • Hot-dipped galvanized finish provide superior corrosion protection
  • Spec Sheet


IDEAL Buchanan Multi-Purpse Cable Tie-

  • General purpose cable tie for every day bundling and cable management
  • UL recognized


Carlon Rigid Nonmetallic Conduit (RNC), Fittings & Accessories- Carlon manufactures the most complete line of nonmetallic conduits and fittings in the electrical industry. Carlon Schedule 40 and Schedule 80 conduits are designed for use aboveground and underground as described in the National Electrical Code.


Cooper Bussman Limitron Fast Acting Fuse


Soladeck UL 50 Type 3R Enclosures -  Use the Type 3R systems to pass through or transition outdoor system wiring to interior house wiring with a weather-tight enclosure.

  • 6" Din rail installed
  • ETL listed and labeled to the UL50 3R Standard
  • Residential pass through or wire transition

Soladeck ER 10 Terminal Block - Rated to 600V 65 amps. Wire #16 - 6 AWG, 10 mm wide (for combining).

Soladeck ER 6/ER 10 End Plate Cover - Use to cover exposed side of last terminal block (one for positive and one for negative).


Unirac WEEB -

WEEB 9.5
Ground WEEB for grounding modules to rails

Unirac Ground Lug 100 pk 

Unirac Grounding Clip 500 pk


Eritech Stamped Bonding Lug -

  • Common hardware used for attaching the lug and securing the conductor to simplify installation
  • Provided with all hardware shown
  • Stainless steel hardware includes serrated washers for supieror bond to annodized aluminum
  • Lay-in feature is ideal for installation underneath module frames
  • Accommodates 14 SOL to 6 STR AWG copper grounding conductors
  • Available in stainless steel or tin-plated bronze
  • UL 467 Listed
  • Spec Sheet 


Heyco's Solar Masthead II Cordgrips - Accommodates USE-2 12 AWG and 10 AWG wire Skinned-over gland remains liquid tight, independent of the number of wires used

  • Skinned-over glands in the Solar Masthead II Cordgrips offer flexibility to use from 1 to 13 of the available holes while still providing a liquid tight seal around the wire.
  • Designed for solar rooftop installations.
  • Eliminates the need for combiner box in residential rooftop solar applications when appropriate threaded adaptor is used.
  • Generous wrenching flats for ease of assembly.
  • No disassembly required for installation.
  • UV resistant nylon construction with TPE or Buna N Sealing Gland resists salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents.
  • Patent Pending



Heyco's Solar Masthead Cordgrips - Designed and engineered to make job site solar power and control wiring fast, easy, and error free.

  • Designed for solar rooftop installations
  • Provide a watertight seal for PV module output leads to inverters
  • Require no disassembly for installation
  • Constructed of UV resistant Nylon with TPE or Buna N Sealing Gland to resist salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents
  • Rated IP 68
  • Available in a multitude of sizes and gland configurations



 Heyco Liquid Tight Snap-In "Solar Combiner Box" Cordgrips -

  • House multiple wires at one entry point to provide a liquid tight seal around each wire and at the panel
  • Ideal when individual conductors for power or control are used rather than jacketed cable
  • Have smooth, rounded interior edges for ease of installation
  • Ensure a firm, vibration-free grip on the cable through the ratchet design of the sealing nut assembly
  • Easy to install-no tools required
  • Offer limited intrusion into the combiner box enclosure where access is tight
  • Include a foam sealing washer
  • Rated IP 64



Heyco Liquid Tight Cordgrips Multi-Hole, NPT Hubs -

  • Parts M3231GAE, M3200GAH, M3234GAF and M3234GAG are UL approved under File E-51579
  • All accompanying Cordgrips are made of nylon construction with TPE sealing glands that resist salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents. This feature is not assessed by UL.
  • For body part dimensions.
  • Multi-hole glands are only to be used with Heyco Liquid Tight Cordgrips and are not sold separately.