DOCA0284EN-02

Disconnecting the Drawout Circuit Breaker

@experts: Topic shared between DOCA0284 and DOCA0285, with profiling; indicate if comments do not apply to both guides

Drawout Circuit Breaker Handling Conditions

Connection or disconnection of the drawout circuit breaker requires insertion of the racking handle. When chassis locking by keylocks, padlocks, or an open door lock are in place, the racking handle cannot be inserted.

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH
  • Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E or CSA Z462 or local equivalent.
  • This equipment must only be installed and serviced by qualified electrical personnel.
Failure to follow these instructions will result in death or serious injury.
NOTICE
HAZARD OF EQUIPMENT DAMAGE
  • Use the provided racking handle to rack the device into or out of chassis.
  • Do not use power tools for racking.
  • Do not turn the handle after position release button has popped out.
Failure to follow these instructions can result in equipment damage.

Racking-out the Circuit Breaker from Connected to Test Position

Step

Action

1

Press the opening pushbutton to open the circuit breaker.

2

Remove the racking handle from its storage space.

3

Insert the racking handle into the racking handle socket.

4

Push in the position release button.

5

Turn the racking handle counterclockwise.

Result: The circuit breaker moves forward in the chassis.

6

When the test position is reached, the position release button pops out and the mechanism blocks the racking handle.

Result: The circuit breaker is in the test position.

Racking-out the Circuit Breaker from Test to Disconnected Position

Step

Action

1

Push in the position release button.

2

Turn the racking handle counterclockwise.

Result: The circuit breaker moves forward in the chassis.

3

When the disconnected position is reached, the position release button pops out and the mechanism blocks the racking handle.

Result: The circuit breaker is in the disconnected position.

4

Remove the racking handle from the racking socket.

5

Put the racking handle back into its storage space.

QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.

Was this helpful?