End Run Installation
- Prior to the installation of the End Run, ensure the main breaker and any alternate power sources are turned off so the main panel is not energized.
- Ensure that you do not to cut or damage insulation of any wires.
- Adhere to local guidelines for all wire gauges and installation requirements.
- Small flat blade screwdriver
- Wire stripper
- #2 Phillips screwdriver
- 13 mm wrench
- ½” NPT conduit connector for SM-EC-NA
- ½” Liquid-tight flexible metal conduit (LFMC) or EMT tubing
- 10-12 AWG (3.3-5.3 mm2) THWN-2 differently colored wire
- 8 AWG Copper solid-core grounding wire
- Using a flat blade screwdriver, remove the End Run cover by gently prying the locking tabs outward and sliding the cover off.
- Locate the open connector at the end of your array of AC Modules and connect the end run cable to the
Y-Cable until it is firmly seated.
Note: One End Run can support up to 16 continuous AC Modules in an array. Solar arrays
comprised of more than 16 AC Modules will require additional End Run assemblies.
- Thread the conduit connector into the End Run cover
- Feed the house-side wiring through the conduit and the cover of the End Run assembly.
- Secure the conduit to the conduit connector and insert the appropriate wires into their respective
terminal block locations (L1-N-L2-GND) inside the End Run housing.
- Slide the End Run housing into the cover until it snaps securely in place and pull back on the wiring from
the other end to reduce the slack.
- Position the End Run underneath and in line with the outside edge of the AC Module, preferably with the
conduit side facing in the downroof position
- Spread the conduit support clamps open and fit them over the conduit with the non-threaded screw
hole facing out. Twist the screw into the clamp until the screw thread is visible and protruding from the
- Hook the conduit clamp on the inside lip of the AC Module and then over the outer lip. Tighten the screw
on each conduit clamp to support the conduit on the AC Module.
- On the opposite end of the row of AC Modules, terminate the open Y-Cable using the Cable End Cap.
- Install the Grounding Stud into the pre-threaded hole located underneath any Panel Connector in the array.
Note: A Grounding Stud can ground up to 60 AC Modules if they are connected together using
- Insert one end of a copper solid-core grounding wire into the grounding stud and torque the hex nut to
7.4 lb-ft or 10 N-m.
- Ensure you label the End Run wires and complete the house-side wiring according to local rules and
Note: Install a circuit breaker (maximum: 20A) at the fuse panel between the solar array and the
grid-side power source.