6 Electrical Connection
SMA Solar Technology AG
36
STP5-9TL-IA-en-10
Installation Manual
6.3.2 Connecting the Inverter to the Electricity Grid
Requirements:
☐ The country data set and the display language must be correctly set (see Section 7.2)
☐ The connection requirements of the network operator must be met.
☐ The line voltage must be in the permissible range. The exact operating range of the inverter is
specified in the operating parameters (see the Technical Description "Measured Values and
Parameters" at www.SMA-Solar.com).
1. Disconnect the miniature circuit-breaker and secure against reconnection.
2. Loosen the screws and conical spring washers of
the enclosure lid using an Allen key (AF 5) and
remove the lid.
3. Remove the adhesive tape from the enclosure opening for the AC cable.
4. Attach the M32x1.5 cable gland to the enclosure opening for the AC cable using a counter nut.
5. Strip the AC cable insulation.
6. Shorten L1, L2, L3 and N by 5 mm each.
7. Strip 18 mm of the L1, L2, L3, N and PE insulation each.
8. Route the AC cable into the inverter through the cable gland. If necessary, slightly loosen the
swivel nut of the cable gland.
9. Push the safety levers of the AC connecting terminal
plate right up to the stop.
