SMA External Supply Voltage 230 V - Manual (Page 31)

6. Insert the new surge arrester in the base. Be sure to insert it the right way round.
7. Replace the lower protective cover of the SMA String-Monitor (see SMA String-Monitor
manual).
8. Switch the SMA String-Monitor back on (see SMA String-Monitor manual).
9. Reconnect the external supply voltage of the SMA String-Monitor (see manual of the inverter
or manual of the external voltage source).
6 Disassembling the Power Supply Assembly and the
Surge Arresters
Danger to life from electric shock due to live voltage
High voltages are present in the live components of the DC sub-distribution. Touching live
components results in death or serious injury due to electric shock.
• Disconnect the inverter on the DC side (see the inverter manual).
• Disconnect the DC sub-distribution (see the DC sub-distribution manual).
• Disconnect all DC sub-distributions that are connected in parallel in the DC connection area
(see the manual of the respective DC sub-distribution).
Disassembling the Surge Arrester
1. Disconnect the inverter on the DC side (see inverter manual).
2. Disconnect the external supply voltage of the SMA String-Monitor (see manual of the inverter
or manual of the external voltage source).
3. Disconnect the SMA String-Monitor (see SMA String-Monitor manual).
4. Disassemble the lower protective cover of the SMA String-Monitor (see SMA String-Monitor
manual).
5. Depress the release buttons at the top and bottom of the surge arrester and pull the surge
arrester out of the base.
6. Replace the lower protective cover of the SMA String-Monitor (see SMA String-Monitor
manual).
7. Switch the SMA String-Monitor back on (see SMA String-Monitor manual).
8. Reconnect the external supply voltage of the SMA String-Monitor (see manual of the inverter
or manual of the external voltage source).
Disassembling the Power Supply Assembly
1. Disconnect the inverter on the DC side (see inverter manual).
2. Disconnect the external supply voltage of the SMA String-Monitor (see manual of the inverter
or manual of the external voltage source).
3. Disconnect the SMA String-Monitor (see SMA String-Monitor manual).
4. Disassemble the lower protective cover of the SMA String-Monitor (see SMA String-Monitor
manual).
6 Disassembling the Power Supply Assembly and the Surge Arresters SMA Solar Technology AG
Installation Manual 31 SSMU-AUX-PB/OVP-IA-xx-10
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