SMA WB 3000-21 Installation - Manual (Page 37)

SMA Solar Technology AG 6 Electrical Connection
Installation Manual WB3-5TL-21-IA-en-10 37
6.4.2 Bridging the DC Inputs on the Inverter
Requirements:
☐ A negative connection cable to bridge the DC inputs on the inverter must be equipped with
two negative DC connectors.
☐ A positive connection cable to bridge the DC inputs on the inverter must be equipped with
two positive DC connectors.
Bridge the two rear DC connectors of input A with the two rear DC connectors of input B according
to the following procedure.
1. Stop the small wind turbine system and secure against restart.
2. Disconnect the miniature circuit-breaker and secure against re-connection.
3. If the ESS is plugged in, remove the ESS.
4. Remove the filler-plugs from the rear DC connectors
of both inputs on the inverter.
5. Connect the positive DC connectors of input A with
the positive DC connectors of input B.