SMA STP 5000TL - Manual (Page 36)

Procedure:
1. When connecting to the utility grid, protect the multifunction relay with a separate circuit
breaker.
2.
Danger to life due to high voltages
• Ensure that the inverter is disconnected from all voltage sources (see Section 10, page 51
)
3. Prepare the cable:
• Dismantle the cable jacket by a maximum of 15 mm.
• Strip off the conductor insulation by max. 8 mm.
4. Prepare the cable gland M25 for the connection to the multifunction relay as follows:
• Remove the swivel nut from the cable gland and remove the filler plug.
• Remove the one-hole cable support sleeve from the cable gland and insert the cable into
the one-hole cable support sleeve.
• Press the one-hole cable support sleeve with the cable into the cable gland and lead the
cable into the inverter.
• Screw the swivel nut onto the cable gland.
5. Remove the protective cover of the multifunction relay.
6. Depending on the operating mode, connect the cable to the connecting terminal plate for the
connection to the multifunction relay in accordance with the circuit diagram.
7.
Danger to life due to live cables
If, during inverter operation, an insulated conductor (L1, L2 or L3) becomes detached from the
AC terminal, there is a risk of the multifunction relay cables being live. Touching the cables can
cause fatal electric shock.
• Reattach the protective cover to the multifunction relay. This isolates the AC connection
area in the inverter from other terminals.
8. Tighten the swivel nut of the cable gland.
6 Electrical Connection SMA Solar Technology AG
Operating Manual STP5-10TL-20-BE-en-13 36