TFC Group Towerchron QE2 - Manual (Page 43)

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GENERAL INSTALLATIONS INSTRUCTIONS (QE2)
The TOWERCHRON QE2 is double insulated, so earth protection is not required. However, in the backplate a termi-
nal for earth continuity is provided which should be used if earth conductors are present in your cable. Make sure that
the earth conductors are sleeved to prevent accidental contact with live parts.
Terminal
Block
Backplate
Earth
Terminal
Fixing
Holes
Fixing
Screw Cable
Knockout