INSTALLATION
40 OI 248 (EN) REV6 /REV5
6.11 Mounting the High Voltage Terminal Pads
The high voltage terminal pads are shipped in the box containing
the accessories. The high voltage terminal pads may be mounted
either on the front or the rear of the circuit breaker, as desired.
Oxide films can form on the terminal pad mounting plates and the
high voltage terminal pads during transport and storage, and these
films can result in higher contact resistances. Oxide films in the
contact areas must be removed before installation. Use a wire
brush with stainless steel bristles as the appropriate tool for this job.
• Brush the contact surfaces of the high voltage terminal pads (2)
and terminal pad mounting plates (1) until all oxide film has been
removed.
• Lubricate contact surfaces on both sides in accordance with
lubrication specification L3.
• Lubricate bolts per lubrication specification L1.
• Bolt the high voltage terminal pads to the terminal pad mounting
plates using three bolts each (4), washers (3) and nuts (5).
Tighten to a torque of 146Nm.
1 Terminal pad mounting plates 1x
2 High voltage terminal pads 1x
3 Washer, 16 A2 6x
4 Hexagon bolt, M16x65 A2-70 3x
5 Hexagon nut, M16 A2-70 3x
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