SMA WB 3000-21 Installation - Manual (Page 55)

SMA Solar Technology AG 9 Disconnecting the Inverter from Voltage Sources
Installation Manual WB3-5TL-21-IA-en-10 55
9. Unlock and disconnect all DC connectors. To do
this, insert a screwdriver into one of the side slots
(blade width: 3.5 mm) and pull the DC connectors
straight down. Do NOT PULL ON THE CABLE
while doing this.
10. Ensure that no voltage is present on the DC inputs
using a suitable measuring device.
11. Ensure that no voltage is present on the AC
connecting terminal plate between L and N using a
suitable measuring device. Insert the test probe
(maximum diameter: 2 mm) in each round opening
of the terminal.
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