Installation Manual

4 Mounting
SMA Solar Technology AG
Installation ManualEXTANT-US-40-IA-en-1412
Procedure:
1.
DANGER
Danger to life due to high voltages of the PV array
When exposed to sunlight, the PV array generates dangerous DC voltage, which is present
in the DC conductors and the live components of the inverter. Touching the DC conductors
or the live components can lead to lethal electric shocks.
• Prior to performing any work on the inverter, always disconnect the inverter from
voltage sources on the AC and DC sides as described in the inverter manual. When
doing so, note that even if the DC load-break is switched off, there will be dangerous
direct voltage present in the DC conductors of the inverter.
2. If necessary, attach the cable gland to the inverter:
• Push the sealing plug from the inside out of the
enclosure opening and retain it for later
decommissioning.
• Unscrew the counter nut from the supplied cable gland.
• Tighten the cable gland with the counter nut on
the inverter enclosure opening.
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2
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3. Connecting the antenna cable plug: