Electrical Wiring

ELECTRIC SHOCK HAZARD

Always ensure the system is de-energized following lockout/tagout (LOTO) procedures and MSDs are removed for full isolation.
Do not assume disconnection—always verify by checking the lines and ground with a suitably rated voltmeter.
Lock out the source disconnection devices.
Set the manual disconnect switch in each battery cabinet to the OFF position.
Remove all Manual Service Disconnects (MSDs) from each battery pack.
Follow lockout/tagout procedures when servicing the equipment.

Failure to follow these instructions may result in death or serious injury.

Electrical Wiring Overview

The battery system requires dedicated connections for DC power, auxiliary AC power, LYNK communication, internet, and grounding. For safety and to prevent interference, route DC, AC, and communication cables in separate conduits.

DC Conductors: Terminate DC connections at the HV Box. Conductors must be properly sized based on the PCS specifications and fuse rating (connection is rated for 200 A).
AC Input: Connect AC input cables to the AUX AC wiring assembly, using two conductors plus a ground wire, rated for 30 A at 240 Vac (single-phase).
Communication: Use two Unshielded Twisted Pair (UTP) cables—one for CANbus communication with the inverter and one for the internet connection to the LYNK II Gateway.
Grounding: Connect the system to a dedicated ground rod or Ufer ground for proper grounding and safety compliance.

NOTICE

COMMUNICATION CABLE DAMAGE

Do not route communication cables in the same conduit as power cables.
Communication cables are delicate and should be protected from excessive force to prevent tearing.
Ensure cables meet the required voltage insulation standards and are shielded from scratches or other damage to maintain insulation integrity.
Confirm cables are not under excessive stress or in contact with sharp edges or nearby terminals.
Position and secure cables with straps to maintain positioning and safety.

Failure to follow these instructions may result in equipment damage.

NOTICE

DO NOT PARALLEL BATTERY CABINETS ON THE DC BUS

Do not parallel the AES battery cabinets on the DC bus. Attempting to connect multiple cabinets in parallel on the DC bus may result in unbalanced currents, system instability, or potential damage to the equipment.

Failure to follow these instructions may result in equipment damage.

Connecting the DC outputs of battery cabinets in parallel is not supported. The AES battery cabinets are designed to operate as independent units, each with its own DC connections to the inverter DC inputs/outputs. Attempting to connect multiple cabinets in parallel on the DC bus may result in unbalanced currents, system instability, or potential damage to the equipment.