Application

3KD switch disconnectors are designed for applications with exacting requirements. They are deployed as main control switches, EMERGENCY-STOP switches and repair switches in industrial plants, infrastructure and buildings. 3KD switch disconnectors are designed to switch the specified rated current on and off under load. At the same time, they constitute a safety isolating function and isolating distance in all low-voltage circuits.

All 3KD switch disconnectors are climate-proof and meet the requirements of IEC 60947-1, IEC 60947-3 and VDE 0660-107.

Features

• 3-pole and 4-pole versions in 5 different sizes
• Supplied as a complete assembly including direct operating mechanism or as a basic unit without a handle
• Direct operating mechanism with handle on switch disconnector
• Door-coupling rotary operating mechanism for operation of switch disconnector outside the control cabinet door
• Versions with side panel mounted operating mechanisms
• Connections in the form of box terminals or flat terminals
• Floor mounting or mounting on a DIN rail (sizes 1 and 2)
• Additional poles can be retrofitted: 4th contact element, N or N/PE terminals
• Auxiliary switches for querying the switch positions
• Suitable for AC or DC applications

Get more information

For further information, please refer to the product information "3KD Switch Disconnectors" at http://www.siemens.com/lowvoltage/infomaterial