SMA SI 4548-US - Manual (Page 5)

SMA America, LLC Important Safety Instructions
Operating Manual SI4548-6048-US-BE-en-20 5
Markings on this Product
The following symbols are used as product markings with the following meanings.
Symbol Description
Warning regarding dangerous voltage
The product works with high voltages. All work on the product must only
be performed as described in the documentation of the product.
Electric arc hazards
The product has large electrical potential differences between its
conductors. Arc flashes can occur through air when high-voltage current
flows. Do not work on the product during operation.
Beware of hot surface
The product can become hot during operation. Do not touch the product
during operation.
Observe the operating instructions
Read the documentation of the product before working on it. Follow all
safety precautions and instructions as described in the documentation.
UL1741 is the standard applied by Underwriters Laboratories to the
product to certify that it meets the requirements of the National Electrical
Code ® and IEEE-929-2000. IEEE 929-2000 provides recommendations
regarding the proper equipment and functionality necessary to ensure
compatible operation when power generation is connected to the utility
grid.