5 Mounting
39
BA5789879-01 EN
5. Close the cable screw connection with max. torque = 6.7 Nm.
6. If present, proceed in the same way for the second cable screw connec-
tion.
7. Close the cover of the terminal box.
5.3.3 Connecting the plug connector (ANSI or Westinghouse)
Before connecting the device, check that the socket connection cable
matches the plug on the device. Then proceed as follows:
1. Connect the protective conductor between the grounding screw below the
plug connection (wrench size 10, max. torque = 5 Nm) and the housing of
the transformer or on-load tap-changer.
2. Remove the sheathing of the free end of the socket connection cable,
strip off approx. 7 mm of insulation from the braided leads and cap off with
ferrules.
3. Lay the socket connection cable between the device and control box and
connect the braided leads in the control box in accordance with the pin as-
signment.
Figure 17: Pin assignment of the ANSI socket connection cable in plan view
1 1 Micro-switch
2 2 Micro-switches
Wire colors of the
supplied cable:
Pin 1: black
Pin 2: red
Pin 3: blue
Pin 1: black
Pin 2: red
Pin 3: blue
Pin 4: orange
Pin 5: yellow
Pin 6: brown
Summary of Contents for MESSKO MPREC
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