0614IB1702

Masterpact MTZ1 Fixed Device

Fixed Masterpact MTZ1 Description

The following image shows the standard version of the fixed device.

  1. Mounting side plate

  2. Carrying grip

  3. Arc chute

  4. Fault-trip reset button

  5. Opening pushbutton

  6. Closing pushbutton

  7. Terminal blocks for standard accessories

  8. Front cover

  9. Spring charging handle

  10. P{ushbutton locking cover (VBP) (optional)

  11. Rating plate

  12. Spring charged and ready-to-close indicator

  13. Main-contacts position indicator

  14. Window to read the (optional) mechanical operation counter (CDM)

  15. Control unit

  16. Control unit transparent cover

Fixed Masterpact MTZ1 Accessories Description

The following image shows the accessories available for the fixed device. For Z1 and Z2, see the following images.

  1. ULP port module

  2. Terminal blocks for optional accessories

  3. Four auxiliary switches (OF) (delivered as standard)

  4. Spring charging motor (MCH)

  5. Mechanical operation counter (CDM)

  6. Standard 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)

Fixed Masterpact MTZ1 Terminal Block Description

Terminal block supplied as standard

Terminal block for optional accessories

Assignment of the Terminal Blocks

Marking

Description

Standard/Optional

COM

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

or ULP port module

Standard

Optional

UC1

Zone selective interlocking (UC1), 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

M2C/UC4/ESM

Programmable contacts (M2C) or external voltage connector

Optional

UC3

External 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

OF21–OF24

4 auxiliary switches (OF)

Standard

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