Switch disconnectorsSwitch disconnectors
Application
8UD1 door-coupling rotary operating mechanisms can be used in electrical controls, distribution boards and switchboards in cases where switches have to be mounted behind covers, end plates and doors that must be opened and where they are to be operated manually from outside.
Interlocking conditions
The basic versions of the rotary operating mechanisms comply with the following interlocking conditions:
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Operating mechanism and switch in "0" (OFF) position:
The control cabinet door can be opened. With padlocks fitted, the control cabinet door remains locked however. -
Operating mechanism and switch in "I" (ON) position:
The control cabinet door cannot be opened in this position. However, the lock can be overridden and the control cabinet door opened by trained personnel for performing checks. No padlocks can be fitted in "I" position.
Other interlocking conditions:
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If no door interlock is desired, it can be deactivated.
Operating conditions and ambient conditions
The temperature range for operation of the rotary operating mechanisms is between -25 °C and +60 °C.
Thanks to the use of glass fiber-reinforced molded plastic for handles and masking plates as well as metal components with surface protection, the rotary operating mechanisms are suitable for rough conditions, high air humidity and aggressive atmospheres.