22 Installation and Operating Instructions V03
The maximum cable lengths depend on the conductor cross-section as follows:
The required conductor cross-section depends on the inverter rating, ambient
temperature, routing method, cable type, cable losses, applicable installation
requirements of the country of installation, etc.
5.4.2 Grid connection
Damage to the seal of the cover in sub-zero conditions
• If you open the cover in sub-zero condition, the sealing of the cover
can be damaged. This can lead moisture entering the inverter.
• Do not open the inverter at ambient temperatures lower than -5℃.
• If a layer of ice has formed on the seal of the cover in sub-zero
comditions, remove it prior to opening the inverter( e.g. by melting the
ice with warm air ). Observe the applicable safety regulation.
Risk of injury due to electric shock and fire caused by high leakage
current
• The inverter must be reliably grounded in order to protect property
and personal safety.
• The PE wire should longer than 20mm during strip the outer sheath
of AC cable.