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
Connecting the control circuit
The following chapter describes how to connect the control circuit of the 3KC3 and 3KC6 transfer switching equipment. The connectors required for this are included in the scope of supply.
WARNING
Ensure there is no live voltage anywhere before connecting the transfer switching equipment to the control circuit.
NOTICE
The product is designed for a rated impulse withstand voltage Uimp of 6 kV for the main circuit. The control circuit of the 3KC3 transfer switching equipment is designed for 4 kV and the control circuit of the 3KC6 transfer switching equipment is designed for 2.5 kV.
When using the product in an application in which overvoltages of > 4 kV or > 2.5 kV can occur, suitable measures, such as surge arresters, must additionally be taken to limit these overvoltages to no more than 4 kV or 2.5 kV, respectively.
NOTE
You can find more information on the function of the inputs and outputs and the power supply in the section titled Functions of the inputs and outputs.