Wiring Requirements; Wiring Information; Table 1-1. Branch Breaker Size Recommendations - Advanced Energy AE 600 User Manual

Table of Contents

Advanced Energy

AC/DC DISCONNECT DEVICE AND OTHER REQUIREMENTS

If the optional inverter integrated AC disconnect and inverter integrated DC

subcombiner breakers were not selected, then isolated disconnect devices must be

provided for both the PV array DC connection and for the AC utility grid connection

when installing an AE inverter.

AC DISCONNECT DEVICE, OVERCURRENT PROTECTION,

AND TRANSFORMER REQUIREMENTS

If the optional inverter integrated AC disconnect was not selected, then you must

install an AC disconnect and overcurrent protection device at the AE inverter that

complies with National Electric Code ANSI/NFPA 70 and local building code

requirements, whichever is more restrictive. The AC disconnect must be rated for

480 VAC at the maximum overcurrent protection setting, typically 1.25 * IAC

maximum. You must connect the inverter to a three-phase 480 VAC grounded wye

feeder or an 800 A service. Refer to the table below.

DC DISCONNECT DEVICE AND FUSE REQUIREMENTS

If the optional DC subcombiner circuit breakers were not selected, then you must

provide a DC disconnect and fusing for each section (or sub-array) of the PV array.

The disconnect must be rated for the voltage and the current rating of the

photovoltaic array connected to the inverter. The DC disconnect installation must

comply with your national and local electrical code.