enphase M215 - Step 1: Measure AC Voltage at the Electrical Utility Connection

M215 Installation and Operation
 2013 Enphase Energy Inc. 141-00012 Rev 05
10
Step 1: Measure AC Voltage at the Electrical Utility Connection
Measure AC line voltage at the electrical utility connection to confirm that it is within range. Acceptable
ranges are shown in the following table.
Single-phase 240 Volt AC
L1 to L2
211 to 264 VAC
L1, L2 to neutral
106 to 132 VAC
Three-phase 208 Volt AC
L1 to L2 to L3
183 to 229 VAC
L1, L2, L3 to neutral
106 to 132 VAC
NOTE: Check the labels on the Engage Cable drop connectors to be sure that the cable
matches the electrical utility service at the site. Use 208 VAC (208 VAC three-phase)
Engage Cable at sites with three-phase 208 VAC service, or use 240 VAC Engage Cable
at sites with 240 VAC single-phase service.