Connection Area; Wiring Requirements For The Dc Connection; Dc Connection Via A Terminal; Requirements For Dc Connection Via A Terminal - Ingeteam INGECON SUN PowerMax TL U B 1000 Vdc Series Installation And Operation Manual

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9.2. Connection area

The PV array connections are made in the part of the DCAC connections module shown in the following figure. The
DC supply will be different depending on the selected configuration.

9.3. Wiring requirements for the DC connection

• Use only copper or aluminum cables.
• The DC connection cables must withstand at least 1000 V between poles and between each pole and
ground.
• All cables must withstand temperatures greater than +194 °F (+90 °C) and comply with the National
Electrical Code ANSI/NFPA 70.
• The cable gauge must be based on the continuous currents permitted in table 310.16 of the National
Electrical Code ANSI/NFPA 70.

9.4. DC connection via a terminal

9.4.1. Requirements for DC connection via a terminal

• For DC connection, compression terminals must be used. The terminals used can be with 1 or 2 holes.
• The inverter busbars are made of copper. We recommend using tined copper terminals, while copper
terminals are allowed. If you use aluminum cables, you must use bimetallic terminals or other
components that eliminate the galvanic couple of the joint.
• No more than two cables should be connected to each DC busbar.
• Only use the bolts and washers provided by Ingeteam upon delivery of the unit.
• All torques indicated must be respected and maintained.
Minimum
Maximum
* The fasteners are supplied factory lubricated with Loctite 8009. If necessary, apply the same lubricant again or another compatible
one.
** To facilitate handling of the wiring, Ingeteam recommends using more than one smaller gauge cable instead of one large gauge
cable. For example, it is preferable to use two 400 kcmil cables instead of one 750 kcmil cable.
66
Wire gauge
In accordance with the current
circulating through the conductors
750 kcmil**
Tightening torque. M12 screws
(lubricated*)
405 lb.in (45.7 Nm) (with lubrication)
ABK2027IQE01_A - Installation and Operation Manual
DC connection