Locking the Device in Open Position with Keylocks

Optional keylocks can be used:

To lock one MasterPacT MTZ2/MTZ3 in the open position. When locked the device cannot be closed either locally with the closing pushbutton or remotely.
To interlock several MasterPacT MTZ2/MTZ3 devices locked with the same key.

To use keylocks to lock the device in the open position, an optional OFF-position locking accessory is necessary.

The keylocks can be used in addition to padlocks.

The OFF-position locking accessory is an optional accessory that is mounted on the front of the device.

The OFF-position locking accessory can be fitted with either:

The following types of keylocks can be fitted:

Ronis keylock

Profalux keylock

Castell keylock (keylock not provided)

Kirk keylock (keylock not provided)

For information on the accessory installation, consult the instruction sheet on the Schneider Electric website: NVE16146.

For devices equipped with two keylocks, locking with one key is sufficient to lock the device in the open position.

Step	Action
1	Press and hold the opening pushbutton.
2	With the opening pushbutton pressed, turn the key counterclockwise to lock the device.
3	Remove the key.
4	Release the opening pushbutton.
5	Check that the device is locked in the open position and cannot be closed either locally with the closing pushbutton or remotely.

For devices equipped with two keylocks, both keys must be inserted in the keylocks to unlock the device.

Step	Action
1	Put the key in the keylock.
2	Turn the key clockwise to unlock the device.
3	Press the closing pushbutton to close the device. NOTE: The key remains captive in the keylock.