2.2. Safety Information
Before installation:
Read this manual completely and gather all information available on the product. Make sure
it is fully understood. Check that your application does not exceed the safe operating
specifications for the product.
WARNING - SAFETY DURING INSTALLATION
The product must be installed and operated by qualified service personnel
and installed into an apparatus cabinet or similar, where access is
restricted to service personnel only.
During installation, ensure a protective earthing conductor is first
connected to the protective earthing terminal (only valid for metallic
housings). Westermo recommends a cross-sectional area of at least 4
mm
2
.
Note that this product can be connected to two different power sources.
Upon removal of the product, ensure that the protective earthing
conductor is disconnected last.
WARNING - HAZARDOUS VOLTAGE
Do not open the connected product. Hazardous voltage may occur within
this product when connected to power supply.
WARNING - PROTECTIVE FUSE
The power supply wiring must be sufficiently fused. The fuse must be IEC
60127 certified and rated for T1.6 A and 250 V.
It must be possible to disconnect manually from the power supply. Ensure
compliance to national installation regulations.
This product has no internal fuse and should be connected via an external
fuse for protection.
WARNING - REDUCE THE RISK OF FIRE
To reduce the risk of fire, use only telecommunication line cords with a
cable diameter of AWG 26 or larger. Regarding power cable dimensions,
see Interface Specifications.
Viper 20A Series
5
