Siemens TC3A-107 Installation, Operation & Maintenance Manual page 10

Disconnectable junction box and associated diver efl’s and similar edus
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IOM-007
Earth straps max 1m
length. CP
connection from
structure.
Figure 3 – Highlighting length of earth straps for CP connection to structure.
3. The mounting brackets and junction box are required to be installed together due to the earth
strap arrangement securing under the fixing bolts for the mounting brackets. See fig 4.
Earth straps secured under
mounting screw
Earth straps secured under
mounting screw
Figure 4. Image to show earth straps secured under bracket mounting screws
4. In the event that the brackets are not installed to the junction box body these will need to be
assembled and installed. If applicable: Assemble brackets to the body taking into account the
anti-rotation peg is to be situated on the underside of the unit and locates into a recess in the
body. Tighten the M6 fasteners to 3.5Nm to complete the bracket installation. See fig 5
Installation Operation Manual for TC3A-107 and Similar EDUs
Page 10 of 19

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