0614IB1701

Masterpact MTZ2/MTZ3 Fixed Device

Fixed Masterpact MTZ2/MTZ3 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. Spring charging handle

  8. Connectors for terminal blocks

  9. Front cover

  10. VBP pushbutton locking cover (optional)

  11. Faceplate label

  12. Spring charged and ready-to-close indicator

  13. Main contact position indicator

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

  15. Control unit

  16. Control unit transparent cover

Fixed Masterpact MTZ2/MTZ3 Accessories Description

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

  1. Additional support brackets for mounting on a backplate (optional)

  2. ULP port module (optional)

  3. Terminal blocks for optional accessories (optional)

  4. Optional block of four auxiliary switches (OF) (optional)

  5. Standard block of four auxiliary switches (OF)

  6. Grounding kit (KMT) (optional)

  7. Spring charging motor (MCH) (optional)

  8. Mechanical operation counter (CDM) (optional)

  9. Standard overcurrent trip switch (SDE1)

  10. Overcurrent trip switch (SDE2) or RES electrical remote reset (RES) (optional)

  11. Microswitch

  12. Programmable contacts (M2C) (optional)

  13. Isolation module (optional)

  14. Undervoltage release (MN) or shunt trip (MX)

  15. Shunt trip (MX1)

  16. Ready-to-close contact (PF)

  17. Shunt close (XF)

  18. Electrical closing pushbutton (BPFE)

  19. OFF-position padlock (VCPO)

  20. OFF-position keylock (VSPO)

 

Fixed Masterpact MTZ2/MTZ3 Terminal Block Description

Assignment of the Terminal Blocks

Block

Marking

Description

Standard/Optional

A

COM

Terminal block for the external power supply of the Micrologic X control unit
or ULP port module

Standard
Optional

UC1

Zone selective interlocking, rectangular sensor for ground-fault protection, or MDGF module input

Optional

UC2

Neutral external sensors, rectangular sensor for ground-fault protection, or MDGF module input

Optional

SDE2/RES

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

Optional

UC4

External voltage connector

Optional

UC3

External voltage connector

Optional

M2C

Programmable contacts

Optional

SDE1

Overcurrent trip switch 1

Standard

B

MN/MX2

Undervoltage release (MN) or shunt trip (MX)

Optional

MX1

Shunt trip

Optional

XF

Shunt close

Optional

PF

Ready-to-close contact

Optional

MCH

Spring charging motor

Optional

C

OF21–OF24

4 auxiliary switches (OF)

Optional

OF11–OF14

4 auxiliary switches (OF)

Optional

OF1–OF4

4 auxiliary switches (OF)

Standard

QR code for this page

Was this helpful?