0614IB1702

Masterpact MTZ1 Drawout Device

Drawout Masterpact MTZ1 Definition

A drawout device is composed of the circuit breaker or switch (the Masterpact device, also called the moving part) and the cradle (or fixed part).

Masterpact MTZ1 Moving Part Description

  1. Carrying handle

  2. Arc chute

  3. Fault-trip reset button

  4. Opening pushbutton

  5. Closing pushbutton

  6. Disconnectable contact block cover

  7. Front cover

  8. Spring charging handle

  9. Pushbutton locking cover (VBP) (optional)

  10. Rating plate

  11. Spring charged and ready-to-close indicator

  12. Main-contact position indicator

  13. Window to consult the (optional) mechanical operation counter (CDM)

  14. Control unit

  15. Control unit transparent cover

Drawout Masterpact MTZ1 Accessories Description

The following image shows the accessories available for the moving part of a drawout device. For Z1 and Z2, see the following images.

  1. Cradle rejection feature

  2. Disconnectable contact block

  3. Auxiliary switches (OF) (delivered as standard)

  4. Spring charging motor (MCH)

  5. Mechanical operation counter (CDM)

  6. Overcurrent trip switch (SDE1)

  7. Optional overcurrent trip switch (SDE2) or electrical remote reset (RES)

  8. Microswitch

  9. Programmable contacts (M2C)

  10. Isolation module

  11. Undervoltage release (MN) or shunt trip (MX2)

  12. Shunt close (XF)

  13. Shunt trip (MX1)

  14. Ready-to-close contact (PF)

  15. Open-position locking by keylocks (VSPO) (incompatible with BPFE pushbutton)

  16. Open-position locking by padlocks (VCPO)

  17. Electrical closing pushbutton (BPFE)

Masterpact MTZ1 Cradle Description

The following image shows the standard cradle.

 
  1. Carrying grip

  2. Terminal blocks for standard accessories

  3. Terminal block identification plate

  4. Cradle locking by padlocks

  5. Moving part position indicator

  6. Racking handle socket

  7. Stop release button

  8. Racking handle storage space

  9. Racking handle

  10. Drawout grip

  11. Extension rail

  12. Top safety shutter (optional for UL/ANSI devices)

  13. Bottom safety shutter (optional for UL/ANSI devices)

  14. Cradle rejection feature (optional for IEC devices)

Masterpact MTZ1 Cradle Accessories Description

Accessories available for the cradle.

  1. Terminal blocks for optional accessories

  2. Cord between ULP port module and EIFE interface

  3. Embedded Ethernet interface (EIFE)

  4. Cradle locking by keylocks (VSPD)

  5. Open-door racking interlock (VPOC)

  6. Auxiliary terminal shield (CB)

  7. Door interlock (VPEC)

Masterpact MTZ1 Cradle Terminal Block Description

Terminal block supplied as standard

Terminal block for optional accessories

Block

Marking

Description

Standard or optional

A

CE2–CE3

2 connected position contacts (CE)

Optional

B

COM

Terminal block for the external power supply of the Micrologic X control unit

Standard

or ULP port module

Optional

UC1

Zone selective interlocking (ZSI), rectangular sensor, or MDGF module input

Standard

UC2

Neutral external sensors, rectangular sensor, or MDGF module input

Standard

SDE2/RES

Overcurrent trip switch 2 (SDE2) or electrical remote reset (RES)

Optional

MTC/UC4/ESM

Programmable contact (M2C) or external voltage connector

Optional

UC3

Voltage connector

  • Standard on 3P devices

  • Optional on 4P devices

SDE1

Overcurrent trip switch 1 (SDE1)

Standard

MN/MX2

Undervoltage release (MN) or
shunt trip (MX2)

Optional

MX1

Shunt trip (MX1)

Optional

XF

Shunt close (XF)

Optional

PF

Ready-to-close contact (PF)

Optional

MCH

Spring charging motor (MCH)

Optional

OF1-OF4

4 auxiliary switches (OF)

Standard

C (no EIFE)

CD1-CD2

2 disconnected position contacts (CD)

Optional

CE1

1 connected position contact (CE)

Optional

CT1

1 test position contact (CT)

Optional

D (with EIFE)

EIFE

Embedded Ethernet interface (EIFE)

Optional

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