Withdrawable version

The flexible withdrawable version is suitable for different applications, e. g. as a motor control center. The following features are offered to improve personal and machine safety:

• Uniform operation for all withdrawable unit sizes
• Integrated operating error protection for all withdrawable units
• Unambiguous indication of withdrawable unit positions
• Separate actuation for main control switch and withdrawable unit position
• Test and disconnected position with door closed, without interruption of degree of protection
• Lockable disconnected position
• Optional withdrawable unit coding prevents swapping of withdrawable units of the same size• Swiveling instrument carrier on standard withdrawable units for making settings during operation
• Small withdrawable units for motor and cable feeders up to 63 A

The withdrawable units are ergonomically designed and offer the required flexibility where requirements change frequently. Changing requirements include, for example, a new motor rating or the addition of new loads.

Simple and safe handling as well as fast changeover times ensure the high availability of the plant.

Withdrawable unit positions

Connected position: in the connected position, power contacts as well as control contacts are closed.

Connected position

Disconnected position: Withdrawable units in the disconnected position are disconnected on the line side, the output side, and the control side.

Disconnected position

Test position: The test position is used for testing the withdrawable units without load.

Test position

Universal installation section

Withdrawable unit versions

Small withdrawable units:

• Size ? and ? (? sub-section or ? sub-section)
• Height 150 mm and 200 mm
• Up to 48 withdrawable units per section

Small withdrawable unit size 1/4	Small withdrawable unit size 1/2

Standard withdrawable units:

• Height 100 mm to 700 mm
• Up to 18 withdrawable units per section

Standard withdrawable unit

Operating error protection

Operating error protection prevents movement of the isolating contacts with main control switch "ON".

Operating error protection enabled, main control switch in position "0"	Operating error protection disabled, main control switch in position "1"	Lockable disconnected position

Withdrawable unit coding

The mechanical withdrawable unit coding with up to 9216 coding options prevents swapping of withdrawable units of the same size.

Withdrawable unit coding in the compartment	Withdrawable unit coding on the unit