TU841 3BSE020848R1 ABB Bailey

Product Dimensions：

The metal bottom of PFEA111-20 and PFEA112-20 connects to the metallic DIN-rail which 

serves as the Tension Electronics earth connector.

This is to ensure a good earth connection both for internal logic and for the EMI immunity 

and RF emission of the electronics.

The DIN-rail must have a good connection to the PE (Protective Earth) of the cabinet.

To achieve the best possible corrosion resistance, DIN-rails should be chromium plated, for 

instance, yellow chromium treated. Use star washers with each screw used to fasten the 

DIN-rail to the mounting plate.

To fasten the DIN-rail onto the mounting plate, the minimum screw diameter is 5 mm and 

the maximum distance between screws is 100 mm.

For trouble free operation, the earthing must be carried out carefully. Note the following:

• If the free (unscreened) length exceeds 0.1 m (4 in.) the individual pairs of power 

and signal conductors must be twisted separately

• The external protective earth (PE) cable must be attached to one of the earthbar screw 

clamps.

• All the cable screens have to be connected to the earth bar and the length of the screen 

connection must be less than 50 mm (2 in.).

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Colour：new                                  Warranty: 12 months

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