SMA SUNNY BOY 240 Instruction Manual page 31

SMA Solar Technology AG
Requirements:
☐ For fusing purposes, use at maximum a 16 A circuit breaker.
☐ No loads must be connected between the individual inverters.
☐ For the AC cable connection to the Sunny Boy, only use the AC cable recommended by
SMA Solar Technology AG (see Section 14 "Accessories", page 72).
☐ If the unused AC pin connector of an inverter needs to be sealed, make sure that the AC cable
of the last inverter in the PV system is plugged into the outer AC pin connector. Only the middle
AC pin connector can be used for sealing since it is the only one having eyelets for sealing.
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 ensure that it cannot be reconnected.
• Ensure 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 audibly into place.
3. Plug the protective cap into the middle AC pin
connector of the last inverter. Seal the protective
cap, if necessary. Only the middle AC pin
connector has eyelets for sealing.
☑ The protective cap snaps audibly into place.
Installation Manual
6 Electrical Connection
SMG-SB240-IA-en-11 31