Locking the Safety Shutters

Description

A shutter lock locks the safety shutter in closed position so that the moving part of a MasterPact MTZ2/MTZ3 device cannot be connected in its chassis.

The top and bottom safety shutters can be locked independently.

The safety shutters can be locked by padlocks either inside the chassis or on the front of the chassis.

The safety shutters can be locked by optional accessories:

oVIVC shutter position indication and locking accessory

oShutter locking blocks

The accessories can be locked with one padlock with maximum shackle diameter 5–8 mm.

VIVC Shutter Position Indication and Locking Accessory

Use the shutter position indication and locking accessory to perform the following functions:

oIndicate the position of each safety shutter: open or closed.

oPadlock either or both of the safety shutters in closed position with the moving part in test or disconnected position.

For information on the accessory installation, consult the instruction sheet on the Schneider Electric website: NVE35478.

Shutter Locking Blocks

The shutter locking blocks allow the locking of the safety shutters inside the chassis. Shutter locking blocks are delivered with each chassis as standard, and can be stored in the chassis:

oTwo shutter locking blocks on a MasterPact MTZ2

oFour shutter locking blocks on a MasterPact MTZ3

Locking the Safety Shutters by Using Shutter Position Indication and Locking Accessory

Step	Action
1	The shutter indicator arms can be locked individually or together: oTo lock the top safety shutter, pull the left shutter indicator arm tab out of the slot. oTo lock the bottom safety shutter, pull the right shutter indicator arm tab out of the slot.
2	Insert the padlock in the padlock tab and close the padlock.
3	Check that the bottom safety shutters do not open when the actuator on the right is pressed.

Step

Action

The shutter indicator arms can be locked individually or together:

oTo lock the top safety shutter, pull the left shutter indicator arm tab out of the slot.

oTo lock the bottom safety shutter, pull the right shutter indicator arm tab out of the slot.

Insert the padlock in the padlock tab and close the padlock.

Check that the bottom safety shutters do not open when the actuator on the right is pressed.

G-SE-0053371.1.gif-high.gif

Locking the Safety Shutters by Using Shutter Locking Blocks

Step	Action
1	Remove the shutter locking blocks stored in the chassis.
2	Place the shutter locking blocks in the appropriate guides: oTo lock the top safety shutter, install a shutter locking block on the shutter mechanism on the left. oTo lock the bottom safety shutter, install a shutter locking block on the shutter mechanism on the right.
3	Insert a padlock in each shutter locking block tab and close the padlock.

Step

Action

Remove the shutter locking blocks stored in the chassis.

Place the shutter locking blocks in the appropriate guides:

oTo lock the top safety shutter, install a shutter locking block on the shutter mechanism on the left.

oTo lock the bottom safety shutter, install a shutter locking block on the shutter mechanism on the right.

Insert a padlock in each shutter locking block tab and close the padlock.