SMA SB 240 - Manual (Page 32)

☐ For the AC cable connection to the Sunny Boy, only use the AC cable recommended by
SMA Solar Technology AG (see Section 15 "Spare Parts and Accessories", page 72).
☐ To allow for greater distances between two inverters, use the AC field plug (see Section 6.4
"Assembling the AC Field Plug", page 33).
Procedure:
1.
Danger to life due to electric shock
Do not disconnect the AC connectors under load.
• Ensure that the circuit breaker is switched off and that it cannot be reconnected.
• Make sure that the PV modules are covered.
2. Plug one end of the supplied AC cable into the
outer AC pin connector of the last inverter of the
PV system.
☑ The plug snaps into place.
3. Plug the protective cap into the middle AC pin
connector of the last inverter.
☑ The protective cap snaps into place.
4. Seal the protective cap, if necessary. Make sure that the AC cable of the last inverter is
plugged into the outer AC pin connector. Only the middle AC pin connector can be used for
the security seal since it is the only one having eyelets for the security seal.
5. Ensure that the AC connector and the protective cap in the inverter pin connectors are securely
in place.
6. Plug the other end of the AC cable into the
middle AC pin connector of the next inverter.
☑ The plug snaps into place.
7. Connect further inverters following the same procedure.
6 Electrical Connection SMA Solar Technology AG
Installation Manual SMA-SB240-IA-en-12 32