Mounting Star-Delta Contactors on Plate

Perform the following procedure to mount the star-delta contactors on the plate.

1. Drill 12 holes in the plate, with respect of the dimensions given.

   • LC1G115-500 - Maximum hole diameter: 6 mm (0.23 in.)

   • LC1G630-800 - Maximum hole diameter: 9 mm (0.35 in.)

   NOTE: To ease the mounting, drilling stencils JYT1902701 can be downloaded from the www.se.com website.
   Star-delta starter with three contactors of the same size:
   

   Contactor	G	J	X
   LC1G115–225	35 mm (1.38 in.)	166 mm (6.53 in.)	92,7 mm (3.65 in.)
   LC1G265–500	45 mm (1.77 in.)	187 mm (7.36 in.)	115 mm (4.53 in.)
   LC1G630–800	70 mm (2.75 in.)	242 mm (9.52 in.)	160 mm (6.29 in)

   Star-delta starter with LC1G265-500 line and delta contactors and LC1G115-225 star contactor.
   
   Star-delta starter with LC1G630-800 line and delta contactors and LC1G265-500 star contactor.
   

2. Remove the plastic part on the side of the star and delta contactors, where the mechanical interlock will be installed.

3. Discard the plastic part into the bin.

   

4. Insert the metal slides on the holes of the star and delta contactors.

   

5. Mount each contactor on the plate. Consult the relevant instructions:

   • For mounting LC1G115–225 contactors, see Mounting LC1G115-225 Contactors on Plate

   • For mounting LC1G265–800 contactors, see Mounting LC1G265-500 Contactors on Plate

   

6. Assemble the mechanical interlock LA9G970 between star and delta contactors of the same size according to the size of the contactors.

   	LC1G115–225	LC1G265–500	LC1G630–800
   			-
   			-
   	-
   	-

   NOTE: The mechanical interlock LA9G971 and LA9G972 between star and delta contactors of different sizes do not need to be adapted.

7. Insert the mechanical interlock between the star and delta contactors on the metal slides.

8. Tighten the two screws at the right torque to lock the interlock.