SMA SB 3000TL-20 Installation - Manual (Page 49)

SMA Solar Technology AG Electrical Connection
Installation Guide SB30TL_40TL_50TL-IA-IEN120231 49
5.6.2 Multi-function relay
The inverter is equipped with a multi-function relay as standard. This can be activated simultaneously
with the red error LED beside the display. Other functions of the multi-functional relay are outlined in
the Technical Description "Multi-functional relay and OptiTrac Global Peak" in the download area at
www SMA de. These additional functions can be later retrofitted via a firmware update.
Here you can connect separate loads both in the event of errors and for trouble-free operation.
The following table contains the maximum permissible voltages and currents:
Cable Requirements
The cable type and cable-laying method must be appropriate to the application and location.
Line circuit breaker
If you are connecting the multi-function relay to the public grid, it must be protected with a separate
line circuit breaker.
Voltage Electricity
AC Max. 240 V Max. 1.0 A
DC Max. 30 V Max. 1.0 A
Position Description Value
A Cable type Double insulated
B External diameter 5 mm … 12 mm
C Cross-section of insulated conductor 0.08 mm² … 2.5 mm²
D Strip insulation max. 8 mm
E Stripping length max. 15 mm