General Requirements
In general, the inverters discussed in this document are suitable or intended for installation outdoors. Depending on the design, the devices can be mounted to a wall, on a rack or also to be free-standing.
The specifications for installation and requirements for the installation site must be observed to ensure optimum operation. Refer to the inverter user manual for specific information on mounting clearances and mounting positions since they vary based on inverter type.
The following is an overview of the existing requirements for the installation site. The requirements do not necessarily apply to each device. The specific requirements for your device can be found in the user manual of the relevant inverter.
Installation in areas containing highly flammable materials or gases is not permitted.
Installation in potentially explosive atmospheres is not permitted.
Do not mount the inverter in living areas
Specialists must have exclusive access to the mounting location.
A solid support surface must be available (e.g., concrete or masonry, free-standing constructions).
The mounting location must be suitable for the weight and dimensions of the product.
The installation site should be freely and safely accessible at all times without the need for any auxiliary equipment (such as scaffolding or lifting platforms). Non-fulfillment of these criteria may restrict servicing.
The DC load-break switch of the product must always be freely accessible.
Depending on the product, the installation site must not be exposed to direct irradiation. If the product is exposed to direct solar irradiation, the exterior plastic parts might age prematurely and overheating might occur. When becoming too hot, the product reduces its power output to avoid overheating.
Depending on the product, the installation site may be exposed to direct irradiation. There is, however, the possibility that the product reduces its power output to avoid overheating due to high temperatures.
For mounting to the profile rails: at least 2 profile rails must be available for mounting.
For mounting to the profile rails: the support surface of the frame to which the profile rails are attached should be firm and level (e.g. concrete). Non-fulfillment of these criteria may restrict servicing.
All ambient conditions must be met.
Installation in areas with aggressive ambient conditions such as chemically active substances or gases (e.g. ammonia or chlorine) is not permitted. Please refer to the corrosivity categories in the products' technical data. Additional information is available under the following links: Manufacturer's Declaration "Coastal Installation of SMA Products" and Manufacturer's Declaration "Installation of Sunny Tripower inverters in locations with a moderate ammonia concentration" and at www.SMA-Solar.com.