SMA SSM8-21-BS - Manual (Page 24)

6 Electrical Connection SMA Solar Technology AG
24 SSMxx-21-IA-BS-JP-en-20 Installation Manual
Procedure:
1. Pierce the appropriate membranes.
2. Insert the string cables through the membranes.
3. Cut the string cables to length.
Leading the Cables through the Cable Glands with Sealing Ring Cut-Outs
Lead each cable through the cable glands as described below.
Procedure:
1. Remove the sealing plug from the cable gland.
2. Adjust the sealing plug to the diameter of the cable to be inserted. To do this, cut out the required number of sealing
rings from the center of the sealing plug.
3. Lead the cable through the swivel nut of the cable gland. Ensure that the thread of the swivel nut is facing upwards.
4. Lead the cable through the sealing plug.
5. Insert the sealing plug with the cable into the cable gland.
6. Cut the cable to length.
7. Firmly tighten the cable gland (torque: 5 Nm).
/05*$&
Damage to the Sunny String-Monitor due to moisture penetration
Moisture can penetrate the Sunny String-Monitor through redundant holes in the membranes of the cable feed-through
plate.
• Only pierce as many holes in the membrane as you need for the cables.
/05*$&
Damage to the Sunny String-Monitor due to moisture penetration
Moisture can penetrate the Sunny String-Monitor through unsealed cable glands.
• Only remove the required number of sealing rings from the sealing plugs of the cable glands to match the cable
diameter.
/05*$&
Damage to the cable gland for DC main cables due to incorrectly inserted cables
The DC main cables must be inserted straight through the cable gland. Any transverse stress on the cable gland due to
skewed insertion of cables can damage the cable gland and the base plate of the Sunny String-Monitor.
• Ensure that the DC main cables are led straight through the cable gland.