SMA STP 5000TL - Manual (Page 27)

6.3.2 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 (see the Technical Information "Parameter List" at
www.SMA-Solar.com).
Procedure:
1. Disconnect the circuit breaker from all three line conductors and secure against reconnection.
2. Unscrew all six screws of the enclosure lid using an Allen key (AF 5) and remove the enclosure
lid. Ensure that the conical spring washers are retained.
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. Route the AC cable into the inverter through the cable gland. If necessary, slightly loosen the
swivel nut of the cable gland.
6. Dismantle the AC cable.
7. Shorten L1, L2, L3 and N by 5 mm each.
8. Strip 18 mm of the insulation from each of L1, L2, L3, N and the grounding conductor.
9. Push the safety levers of the AC connecting terminal plate right up to the stop.
10.
Risk of fire if two conductors are connected to one terminal
If 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.
11. Connect PE, N, L1, L2 and L3 to the connecting terminal plate for the AC cable according to
the labeling. The direction of the rotating magnetic field of L1, L2 and L3 is not relevant.
12.
Danger of crushing fingers when locking levers snap shut
The locking levers close by snapping down fast and hard.
• Press the locking levers of the connecting terminal plate for the AC cable down with your
thumb only.
• Do not grip the entire connecting terminal plate for the AC cable.
• Do not place your fingers under the locking levers.
13. Tighten the swivel nut of the cable gland.
6 Electrical Connection SMA Solar Technology AG
Operating Manual 27 STP5-10TL-20-BE-en-13