Step 5: Ground The System - enphase M215 Installation And Operation Manual

Step 5: Ground the System

Each M215 Microinverter comes with a grounding clip that can accommodate a 6-8 AWG conductor.
Check local requirements for allowable grounding conductor sizes.
Ground the microinverter chassis as follows:
NOTE: Ground the system in accordance with all applicable local electrical codes and the
National Electrical Code (NEC), ANSI/NFPA 70.
NOTE: CSA has evaluated and approved the Wiley Electronics "WEEB" grounding washers for
use with the Enphase Microinverter. Compatible grounding washer part numbers and
installation guidelines are included in the
NOTE: The AC output neutral is not bonded to ground inside the microinverter.
a. Route a continuous GEC through each of the microinverters to the NEC-approved AC
grounding electrode.
b. You can ground the PV racking and PV module to this conductor
using a crimp (compression) connection.
c. Torque the 10/32 grounding cleat screw to 2 N m (20 to 25 in-lbs) minimum. Do not over
torque.
NOTE: Using a power screwdriver to tighten the grounding clamp screw is not
recommended due to the risk of thread galling.
14
Racking Compatibility
 2013 Enphase Energy Inc.
M215 Installation and Operation
List.
141-00012 Rev 05