2 connecting the inverter to the utility grid, Connecting the inverter to the utility grid – SMA SB 3600SE-10 User Manual
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6.2.2
Connecting the Inverter to the Utility Grid
Requirements:
☐ The connection requirements of the grid operator must be met.
☐ The grid voltage must be in the permissible range. The exact operating range of the inverter is
specified in the operating parameters.
Procedure:
1. Disconnect the circuit breaker and secure it against reconnection.
2. Ensure that the DC load-break switch is turned to position O.
3. Unscrew all the screws of the enclosure lid using an Allen key (AF 5) and remove the
enclosure lid. Ensure that the conical spring washers are retained.
4. Remove the adhesive tape from the enclosure opening for the AC cable.
5. Attach the cable gland M32x1.5 to the enclosure opening using a counter nut. Make sure that
the pressure equalizing membrane is not damaged.
6. Unscrew the swivel nut from the cable gland and lead the AC cable through.
7. If the outer diameter of the cable is between 15 mm and 21 mm, remove the inner sealing ring
from the cable gland.
8. Push the safety levers of the AC connecting terminal plate right up to the stop.
9. Route the AC cable into the inverter through the cable gland. Make sure that the pressure
equalizing membrane is not damaged.
10. Dismantle the AC cable.
11. Shorten L and N by 5 mm each.
12. Strip the insulation of L, N and PE by 18 mm.
13.
Risk of fire if two conductors are connected to one terminal
f you connect two conductors to a terminal, a fire can occur due to a bad electrical
connection.
• Never connect more than one conductor per terminal.
14. Connect PE, N and L to the connecting terminal
plate for the AC cable in accordance with the
labeling and push the locking levers down.
15. Make sure that all conductors are securely in place.
16. Screw the swivel nut onto the cable gland.
6 Electrical Connection
SMA Solar Technology AG
Operating Manual
SB36-50SE-BE-en-11
30