4.0 AC CONNECTIONS
WARNING – Only qualified personnel that are familiar with AC and DC installation
techniques and codes (such as an electrician) should perform the Installation.
WARNING – The E3-MAC Series contains lethal AC Voltages. Due to the hazard of high
voltage electrocution, always shut down all sources of power before you install,
maintain, or service the unit.
WARNING – Remove all rings, watches, and other jewelry before doing any electrical
service or installation work. Always wear protective clothing and personal protective
equipment (PPE) that is suitable such as eye protection when working near batteries.
NOTE - Always check the system’s rating label located on the cabinets left side interior wall
and also the system’s door.
Use copper wire only – read all warning labels provided in the cabinet!
4.1 Removing the AC Breaker cover
To access wiring to the breakers, remove the two ¼-20 bolts from the plastic breaker
cover with a 3/8 socket or nut driver.
Note - This cover conceals the wiring area and also provides a safety barrier so fingers
do not inadvertently touch live parts after installation. Always re-install the AC Breaker
cover to prevent accidental contact with live wires during routine maintenance.
4.2 Installing the Input Wires
1. Ensure that the System ON/OFF switch is in the OFF position before starting.
2. Ensure that the incoming feed AC voltage matches the voltage rating of the
model you have. Please refer to the systems rating plate label.
3. Ensure that the feed breaker from the panel has enough ampacity to allow for
the full rating of the input current required on the systems rating plate.
Once the Utilities AC input feed voltage and Feed breaker size is confirmed, connect
the utilities feed AC wires to the systems Input circuit breaker (UL489 rated for direct
connection), Terminal Block NEU (Neutral) and grounding terminal block (GND). Ensure
wire connections are secure to all connection points by briefly tugging the wires to
ensure a solid, secure connection with low continuity.
NOTE – AC Input wiring may have to be landed to a Terminal Block instead of the Input
Breaker if a Bypass Switch or Mixed Voltages are present on your system.
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