Installation of the Star-Delta Connection Kits
This section describes the installation procedure of star-delta connection kits on the power terminals of the contactors.
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Place the line-delta coupling bar beside the upstream power terminals of the line and delta contactors.
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Place the bars to connect the line on the upstream power terminals of the line contactor.
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Insert the screws and washers through the coupling bars and power terminals. Tighten the screws at the right torque.
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Place the bars to connect the motor on the downstream power terminals of the line contactor.
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Insert the screws and washers through the coupling bars and power terminals. Tighten the screws at the right torque.
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Place the star-delta coupling bar beside the downstream power terminals of the star and delta contactors.
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Place the bars to connect the motor on the downstream power terminals of the delta contactor.
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Insert the screws and washers through the coupling bars and power terminals. Tighten the screws at the right torque.
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Place the star coupling bar beside the upstream power terminals of the star contactor.
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Insert the screws and washers through the coupling bars and power terminals. Tighten the screws at the right torque.
| Contactor |
Tool |
Torque |
Screws |
|---|---|---|---|
|
LC1G205-245C |
Allen key |
18 ± 1.8 N•m |
M8 |
|
LC1G300-475C |
Inner hexagon |
35 ± 3.5 N•m |
M10 |
|
LC1G620C |
Inner hexagon |
58 ± 5.8 N•m |
M12 |