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
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.
Masterpact MTZ1 Cradle Description
The following image shows the standard cradle.
Masterpact MTZ1 Cradle Accessories Description
Masterpact MTZ1 Cradle Terminal Block Description
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 |
|
|
SDE1 |
Overcurrent trip switch 1 (SDE1) |
Standard |
|
MN/MX2 |
Undervoltage release (MN) or |
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 |