SMA America, LLC
Electrical Connection
Installation Guide
SB8-10TL-IUS103811
29
6.3 Insert the cable into the SMA DC Disconnect
Inserting the cable into the SMA DC Disconnect
1. Open the SMA DC Disconnect (see chapter 8.3 ”Opening SMA DC Disconnect” (page 50)).
2. Break out the knockouts for the AC and DC cables. Use separate cable conduits for the AC and
the DC cables.
3. Insert the cable conduit fittings into the knockout holes.
4. Pull the cable conduits into the fittings and tighten them.
5. Turn off the main switch in the switch cabinet.
6. Cover the PV modules with opaque material.
7. Pull the AC and DC cables through the cable conduits into the SMA DC Disconnect.
☑ The cables are inserted into the SMA DC Disconnect.
NOTICE
Ingress of water when mounting and installing the Sunny Boy.
Damage to the Sunny Boy will result.
• For conduit hubs, use only UL Listed rainproof, or wet location hubs complying with
UL 514B for entry into the enclosure.
NOTICE
Damage to the SMA DC Disconnect due to enlargement of the knockout holes.
• Do not enlarge the knockout holes. The knockout holes are intended for the
installation of inflexible cable conduits of a size of up to 1 in. (25.4 mm).
DANGER
High voltages are present on the AC and DC cables.
Death or serious injuries due to touching the voltage-conducting cables.
