Load Break Switch Installation procedure:

1) Make a hole in the Transformer Housing. Refer to Figure 1 for the hole size. The load switch through the prepared hole on transformer housing, and screw down the Loadbreak switch screw nut as well as seal ring so that internal leakage of transformer can be avoided.

2) Then put the load switch through the prepared hole, use 4-M10X19 bolts with spring washer to fasten the load switch onto the transformer housing, you may refer to Fig 2 for details.

NOTICE: if found that the relative position of bolt hole deviates heavily when screw down the M10 bolts, you must amend the hole and then screw down i again. Otherwise, this will cause distortion to mounting plate, and may bring about malfunction to load switch 

3)After install the rotate handle of switch, check if the open and close positions are consistent with the pointing direction on handle, then tighten the nut on the outside of the transformer of the load switch and tighten the 4 fixing bolts(40-60N), the fastening bolts of busbar must be screw down completely so that a good contact can be kept; in addition, the length of busbar should be selected properly in case over short busbar will pull the connecting block FIG4 of fixed-contact to one side, even cause functional failure to load switch!

After installation and connection, it is suggested to carny out "open"' and "close" operation to check if the switch can be moved flexibly.

Points for attention

1) This load switch can be used to open or close rated current only, while the application for closing and opening the failure current. If over rated current, forbidden to operate switch.

2) Only the special insulated operating arm can be used to operate this load switch to ensure personal safety.

Load Break Switch Connection Diagram