SMA Solar Technology AG Utility-Scale Solar Inverter Sunny Central 500CP XT

Ensure the following materials are available

Switch off the inverter and wait at least 15 minutes before opening it

Remove dirt from the inverter surfaces

Check surfaces for damage or corrosion

Are there any damaged or corroded surfaces?

Ensure a high-temperature resistant, chemically inert special grease is available

Switch off the inverter and wait at least 15 minutes before opening it

Check fuses/disconnection blades and tension springs for discoloration or change in appearance

Check insulation and terminals for discoloration or change in appearance

Handling Fuses/Disconnection Blades

Remove fuses/disconnection blades one by one using a fuse extractor

Ensure you have the following materials

Switch off the inverter and wait at least 15 minutes before opening it to allow the capacitors to discharge completely.

Seal Inspection and Maintenance

Check whether the seals in the sealing area show any damage.

Apply talcum, petroleum jelly or wax to seals to prevent frost damage.

After removing the side panels, check whether the side panel seals display any damage in the sealing area.

Switch off the inverter and wait at least 15 minutes before opening it to allow the capacitors to discharge completely.

Ensure you have the following materials

Check whether the doors latch easily by opening and closing them several times.

Lubricate all moving parts of the latch if the doors do not latch easily.

Check whether the stops hold the doors in place.

Switch off the inverter and wait at least 15 minutes before opening it.

Wear suitable personal protective equipment.

Disassemble the protective covers.