SMA SB 2500TL-21 Installation - Manual (Page 42)

Electrical Connection SMA Solar Technology AG
42 SB25-30TLST-21-IA-en-13 Installation Manual
☑ The PV array is connected. You can now commission the inverter (see Section 7 "Commissioning"
(page 52)). Other connection options are optional (see Section 6.6 "Communication" (page 50)).
NOTICE!
Damage to the ESS
If it is not connected correctly, the ESS can be damaged.
• Plug the handle firmly onto the jack of the ESS.
• The handle must be flush with the enclosure.
• Make sure that the ESS is securely attached to the inverter.
Currents in DC cabling
After connecting the ESS or switching on the DC switch-disconnector, DC currents may
occur in the DC cabling, even when there is no AC-side supply. This is not an error but
normal behaviour of the inverter when in operation.