0614IB1701

Masterpact MTZ2/MTZ3 Drawout Device Racking

Masterpact MTZ2/MTZ3 Drawout Status

Masterpact MTZ2/MTZ3 Drawout Handling Conditions

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.

Connection or disconnection of the drawout device requires insertion of the racking handle. When interlocks, padlocks, or an open door lock are in place, the racking handle cannot be inserted.

Masterpact MTZ2/MTZ3 Drawout Positions

The indicator located on the front of the cradle locally signals the position of the device in the cradle.

Device Position

Position Contact State

Device Status

Connected

  • Clusters: engaged

  • Control: engaged

  • Can be operated.

  • Ready for service.

Test

  • Clusters: disengaged - the minimum isolation distance between the device clusters and the cradle terminals is reached

  • Control: engaged

  • Can be operated.

  • Can have operation and control systems tested.

Disconnected

  • Clusters: disengaged

  • Control: disengaged

  • Can be operated.

  • Can be removed from the cradle.

Withdrawn

  • Clusters: disengaged

  • Control: disengaged

Removed from the cradle.

Masterpact MTZ2/MTZ3 Drawout Position Contacts

The position of the device in the cradle is indicated remotely by the position contacts:

  • CE: connected position

  • CT: test position

  • CD: disconnected position

The state of the position contacts changes according to the device position during racking-in and racking-out operations, as shown in the diagram below.

Position contact is open

  1. Device in connected position

  2. Separation of the main circuits

  3. Device in test position

  4. Separation of auxiliary circuits

  5. Device in disconnected position

Position contact is closed

Masterpact MTZ2/MTZ3 Drawout Position Contact Without EIFE Ethernet Interface

Without an EIFE Ethernet interface, the standard configuration of the position contacts is:

  • 3 CD disconnected position contacts

  • 3 CE connected position contacts

  • 3 CT test position contacts

The following optional configurations are available:

  • 6 CE + 3 CT

  • 3 CD + 6 CE

  • 6 CD + 3 CE

  • 9 CE

Masterpact MTZ2/MTZ3 Drawout Position Contacts with EIFE Ethernet Interface

With an EIFE Ethernet interface, the standard configuration of the position contacts is:

  • 3 CD disconnected position contacts

  • 3 CE connected position contacts

The following optional configurations are available:

  • 3 CE + 3 CT

  • 3 CD + 3 CT

  • 6 CE

Masterpact MTZ2/MTZ3 Cradle Management Function

The cradle management function is used to:

  • Record and check the position of the moving part of the drawout device in the cradle.

  • Provide information about preventive maintenance actions.

  • Notify the remote controller about the position of the drawout device.

The cradle management function is performed by:

Masterpact MTZ2/MTZ3 Disconnection

Masterpact MTZ2/MTZ3 Drawout Handling Conditions

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.

Connection or disconnection of the drawout device requires insertion of the racking handle. When interlocks, padlocks, or an open door lock are in place, the racking handle cannot be inserted.

Racking Out from Connected to Test Position

Step

Action

1

Remove the racking handle from its storage space.

2

Press the opening pushbutton to open the device.

3

Hold the opening pushbutton in and insert the racking handle into the racking handle socket.

4

Push in the stop release button.

5

Turn the racking handle counterclockwise.

6

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

Result: The device is in the test position.

Racking Out from Test to Disconnected Position

Step

Action

1

Push in the stop release button.

2

Turn the racking handle counterclockwise.

3

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

Result: The device is in the disconnected position.

4

Remove the racking handle from the racking socket.

5

Put the racking handle back into its storage space.

Masterpact MTZ2/MTZ3 Connection

Masterpact MTZ2/MTZ3 Drawout Handling Conditions

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.

Connection or disconnection of the drawout device requires insertion of the racking handle. When interlocks, padlocks, or an open door lock are in place, the racking handle cannot be inserted.

Racking-In from Disconnected to Test Position

Step

Action

1

Remove the racking handle from its storage space.

2

Press the opening pushbutton in and insert the racking handle into the racking handle socket.

3

Push the stop release button.

4

Turn the racking handle clockwise.

5

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

Result: The device is in the test position.

Racking In from Test to Connected Position

Step

Action

1

Push the stop release button.

2

Turn the racking handle clockwise.

3

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

Result: The device is in the connected position.

4

Remove the racking handle from the racking socket.

5

Put the racking handle back into its storage space.

Removing Masterpact MTZ2/MTZ3 Device from the Cradle

Masterpact MTZ2/MTZ3 Device Removal

NOTICE
HAZARD OF EQUIPMENT DAMAGE
The cradle must be securely fastened when installing or removing the device.
Failure to follow these instructions can result in equipment damage.

Step

Action

1

Discharge the closing spring. With the device in the disconnected position, press the closing pushbutton. The device will close if the closing spring is charged.

2

Press the opening pushbutton to open the device.

3

Press and hold the rail release tabs towards the back.

4

Pull out the rails to the maximum by pulling on the drawout grips.

Result: The device is supported on the rails, clear of the cradle and ready to be lifted.

Lifting the Masterpact MTZ2/MTZ3 Device

Both the device and cradle have a carrying grip for lifting. To lift, use an overhead lifting device attached to the carrying grip, following the directions given in this section.

DANGER
Hazard of device falling
  • Be sure that lifting equipment has lifting capacity for the device being lifted.
  • Follow manufacturer’s instructions for use of lifting equipment.
  • Wear hard hat, safety shoes, and heavy gloves.
Failure to follow these instructions will result in death or serious injury.

Lift the device from the cradle rails by using the carrying grip located on the sides of the device.

Masterpact MTZ2/MTZ3 Circuit Breaker Weights

Frame Rating

Connector Type*

Weights (lbs./kg.)

Circuit Breaker

Cradle

Connector

Pallet

Total

MTZ2

MTZ3

MTZ2

MTZ3

MTZ2

MTZ3

MTZ2

MTZ3

800–2000 A, Drawout

FCF

109/50

142/65

97/44

116/53

42/19

55/25

17/8

265/121

330/151

FCT

109/50

142/65

97/44

116/53

84/38

109/50

17/8

307/140

384/176

RCTH/RCTV

109/50

142/65

97/44

116/53

17/8

22/10

17/8

240/110

297/136

800–2000 A, Fixed-Mounted

FCF

109/50

142/65

42/19

55/25

17/8

168/77

214/98

FCT

109/50

142/65

84/38

109/50

17/8

210/96

268/123

RCTH/RCTV

109/50

142/65

17/8

22/10

17/8

143/66

181/83

2500–3000 A, Drawout

RCTH/RCTV

127/58

165/75

124/57

149/68

26/12

34/15

17/8

294/135

365/166

FCT

127/58

165/75

124/57

149/68

80/36

104/47

17/8

348/159

435/198

2500–3000 A, Fixed-Mounted

FCT

127/58

165/75

80/36

104/47

17/8

224/102

286/130

RCTH/RCTV

127/58

165/75

26/12

34/15

17/8

170/78

216/98

2000 A L1/L1F & 3200 A, Drawout

RCOV

127/58

165/75

124/57

149/68

100/46

130/59

17/8

368/169

461/210

3200 A, Fixed-Mounted

RCOV

127/58

165/75

100/46

130/59

17/8

244/112

312/142

4000 A, Fixed-Mounted

RCOV (Special)

127/58

165/75

115/52

145/66

17/8

259/118

327/149

3200 A L1 & 4000 A, Drawout

FCF

227/103

295/134

278/126

334/152

84/38

109/50

39/18

628/285

777/354

FCT

227/103

295/134

278/126

334/152

168/76

218/99

39/18

712/324

886/403

RCTH/RCTV

227/103

295/134

278/126

334/152

52/24

68/31

39/18

596/271

736/335

4000 A, Fixed-Mounted

RCTH/RCTV

227/103

295/134

52/24

68/31

39/18

318/145

402/183

5000 A, Drawout

FCT

227/103

295/134

278/126

334/152

168/77

218/99

39/18

712/324

886/403

RCTH/RCTV

227/103

295/134

278/126

334/152

52/24

68/31

39/18

596/271

736/335

5000 A, Fixed-Mounted

RCTH/RCTV

227/103

295/134

52/24

68/31

39/18

318/145

402/183

6000 A, Drawout

RCTV

227/103

295/134

278/126

334/152

396/180

528/240

39/18

940/427

1196/544

6000 A, Fixed-Mounted

RCTV

227/103

295/134

396/180

528/240

39/18

662/301

862/392

Installing Masterpact MTZ2/MTZ3 Device in the Cradle

Masterpact MTZ2/MTZ3 Drawout Handling Conditions

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.

Connection or disconnection of the drawout device requires insertion of the racking handle. When interlocks, padlocks, or an open door lock are in place, the racking handle cannot be inserted.

Masterpact MTZ2/MTZ3 Optional Cradle Rejection Feature

The cradle rejection feature (see Masterpact MTZ2/MTZ3 Cradle Rejection Feature) allows the installation of a drawout device only in a cradle with compatible characteristics.

Installing Masterpact MTZ2/MTZ3 Devices in the Cradle

DANGER
HAZARD OF DEVICE FALLING
  • Be sure that lifting equipment has lifting capacity for the device being lifted.
  • Follow manufacturer’s instructions for use of lifting equipment.
  • Wear hard hat, safety shoes, and heavy gloves.
Failure to follow these instructions will result in death or serious injury.
NOTICE
HAZARD OF EQUIPMENT DAMAGe
  • Cradle must be securely fastened when installing or removing the device.
  • Before mounting the device, make sure that it matches the cradle.
Failure to follow these instructions can result in equipment damage.

Step

Action

1

If the cradle is not installed in a switchboard or panelboard, securely fasten the cradle on a pallet.

2

Inspect the circuit breaker clusters for missing or misaligned clusters. See the bulletin shipped with the circuit breaker for information on checking, installing, and lubricating clusters.

3

Remove the racking handle from its storage space.

4

Check that the cradle indicator is in the disconnected position:

If the cradle indicator is not in the disconnected position, follow the steps on disconnecting the drawout device (see Masterpact MTZ2/MTZ3 Disconnection) .

5

Press the rail release tabs.

6

Pull out the drawout grips until the extension rails are fully extended.

NOTE: The right-hand rail cannot be extended if the racking handle has not been removed.

7

Install the device on the extension rails by using appropriate lifting equipment.

Check that the slots on the device are correctly aligned with the guides on the rails while bringing the device down.

8

Detach the lifting equipment.

9

Check that the device is in the open position.

10

Using both hands, push in the device so that the rails are inserted to the maximum in the cradle. Take care not to push the control unit.

11

Check that the rail release tabs are in the correct position.

Result: The device is in the disconnected position.

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