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A-69
Withdrawable circuit breakers
In addition to the advantages provided by the base, installation on a chassis
facilitates handling. It offers three positions, with transfer from one to the other after
mechanical unlocking:
connected: the power circuits are connected
b
disconnected: the power circuits are disconnected, the device can be operated to
b
check auxiliary operation
removed: the device is free and can be removed from the chassis.
b
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sides plates mounted on the circuit breaker. Similar to the plug-in version, a safety
trip causes automatic tripping if the device is ON, before engaging or withdrawing it,
and enables device operation in the disconnected position.
Accessories
Accessories are the same as for the base, with in addition:
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b
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locking by 1 to 3 padlocks (shackle diameter 5 to 8 mm), to:
b
prevent insertion for connection
v
lock the circuit breaker in connected or disconnected position
v
toggle collar for circuit breakers with a toggle mounted through a front panel,
b
intended to maintain the degree of protection whatever the position of the circuit
breaker (supplied with a toggle extension)
telescopic shaft for extended rotary handles. The door can then be closed with the
b
device in the connected and disconnected positions.
Mounting
DB112220
DB112221
DB112312
Mounting on a backplate.
Mounting through a front
panel.
Mounting on rails.
DB112210
Connected.
Disconnected.
Removed.
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DB112209
Installation positions.
DB111369
DB112219
Protection collar for toggle and toggle
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disconnected positions.
Telescopic shaft.
559E1840.indd
version: 1.0