Table of Contents
Advertisement
IMPORTANT! Do not terminate fine stranded cable in the connector without the use of ferrules.
IMPORTANT! Do not operate this product if the hinge clamp does not close completely as shown. Improper
terminations can result in fire and/or permanent damage.
CAUTION! To reduce the risk of fire, connect only to a dedicated circuit provided with appropriate branch circuit
over-current protection in accordance with local electrical codes.
WARNING! Improper connection of the wiring panel may result in equipment damage and cause personal injury.
Disconnect all AC and DC Sources prior to installation.
CAUTION! The AC grid and load ports are independent circuits, controlled internally by an automatic bypass and
transfer switch. Each port must be connected to electrically isolated panels. Tapping line or neutral wires from
the main electrical panel to the backup panel will result in permanent damage to the product.
L1 L2 L1 L2
N
Figure 15: AC power wiring.
4.3.1 Phase Orientation in Split Phase 120/240
Systems
The EMC derives power measurement at the main service, the
solar PV inverter AC output, and the ESS.
voltage orientation through the entire installation is critical to
proper control of the system. The initial selection of the phase
voltage defined as L1 is established by the placement of the CT
referenced as CT1 on the main feeder to the panel. To ensure the
phase wiring to the DURACELL HUB maintains consistent polarity,
measure the AC voltage between L1 of the main feeder and the
Grid terminals of the DURACELL HUB. The pole that measures 0.0
VAC is defined herein as L1 for the AC wiring instructions that
follow.
4.3.2 Main Electrical Panel Connection
Route "AC Grid" L1, L2, Neutral, and Ground to a
dedicated 2-pole backfeed rated breaker in the main
electrical panel.
PCS Ports
L2
PCS load port
L1
L2
PCS grid port
L1
Neutral bus
(common)
GND
N
Neutral bus (common)
To main panel
To backup panel
Consistent phase
PCS
GND
Main panel
L1 L2 N
Figure 16: Main panel connection.
L1
L1
HUB
GND
To main panel
9
Advertisement
Table of Contents
