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3KC3 and 3KC6 transfer switching equipment3KC3 and 3KC6 transfer switching equipment
- Home
- Introduction
- General information
- Product information
- Functions
- Mounting
- Connection
- Network types
- Connecting the main circuit
- Connecting the control circuit
- Connecting the power supply and inputs of 3KC3 transfer switching equipment
- Connecting the inputs and outputs of the 3KC6 transfer switching equipment
- Mounting and connecting the dual power supply (DPS)
- Installing and connecting an autotransformer (400 V / 230 V)
- Mounting and connecting auxiliary switches
- Operation
- Commissioning
- Accessories
- Service and maintenance
- Technical specifications
- Dimension drawings
- Applications
- Transfer between two sources with one outgoing load
- Transfer between two sources with two outgoing loads
- Transfer between three sources with one outgoing load
- Transfer between three sources with two outgoing loads
- Transfer between two loads with one incoming source (with 3KC3 transfer switching equipment only)
- Appendix
- ESD guidelines
- List of abbreviations
Changing the preset padlocking setting - optional
Both types of transfer switching equipment are supplied with the preset padlocking setting in the OFF position. However, it is possible to allow padlocking in positions I and II in addition if a deliberate change is made. You must proceed as follows here.
Requirement
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Transfer switching equipment must be in position 0.
Procedure
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Loosen the screw on the rear of the transfer switching equipment.
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Move the screw from the bottom to the top end position.
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Tighten the screw to a torque of 0.25 Nm in the top position.

Chap. 5.2.1
NOTE
To allow padlocking in the three positions I, 0 and II, a change must be made on the rear of the transfer switching equipment. This change must be made before mounting the transfer switching equipment.