Brochure

7-70
© 2019 Schneider Electric
All Rights Reserved
Masterpact™ Power Circuit Breakers Masterpact™ MTZ Circuit Breakers
www.se.com/us
Class 0614 / Refer to Catalog 0614CT1701
Neutral Sensors Catalog Numbers
External Sensor for Neutral Ground-Fault Protection (TCE)
External Sensor for
Source Ground-Return Protection
S1
LV848891S
P
Replaces
S48891
4889
1
Modified Different
ia
l
Ground Fault Inter
f
a
c
e
Module
Mód
u
lo de
interfaz de falla a
tierra diferenc
ia
l
modif
i
ca
da
Module d'inter
a
c
e
d
e d
é
faut à la terre
différentiel
modifié
MDGF
Table 7.144: Neutral Sensor Parts
Catalog Number
Neutral Sensor Wiring Harness for MTZ1/2
LV848907SP
Neutral Sensor Wiring Harness for MTZ3
LV848906SP
MDGF/SGR (Source Ground
Return) Sensor plug
External sensor (SGR)[9]
LV833579SP
MDGF summing module for MTZ2/3
LV848891SP
Table 7.145: Masterpact MTZ1 External Neutral Sensors
Used With
Sensor Plug
External Neutral Sensor
For General Use
Circuit breakers with standard neutral protection
400–1600 A LV833576SP
Circuit breakers with oversized neutral protection[10]
400–1000 A LV833576SP
1200–1250A LV834035SP
1600A LV834036SP
Table 7.146: Masterpact MTZ2/MTZ3 External Neutral Sensors
Description
External Neutral Sensor
For Residual Ground
Fault
For 3-Pole Circuit
Breaker with Oversized
Neutral Protection[11]
Masterpact MTZ2 Circuit Breakers
Sensor Plug
400
LV834037SP
LV834037SP
600–630
800
1000
1200–1250 LV834035SP
1600
LV834036SP2000 LV834035SP
2500
LV834036SP
3000
—3200
4000
Masterpact MTZ3 Circuit Breakers
Sensor Plug
Kit includes qty. (2) neutral
sensors
2000
LV848182SP
LV848182SP
2500
3000
3200
4000
5000
—6000
6300
Cradle Metering CT Kit Catalog Numbers
For use with UL and ANSI rated circuit breakers only.
Not available with ArcBlok Technology.
Table 7.147: Cradle Metering CT Kit (Set of 3)
Description Catalog Number
MTZ2
400 A SMCT400
600 A SMCT600
800 A SMCT800
1200 A SMCT1200
1600 A SMCT1600
2000 A SMCT2000
2000 A
SMCT2000R[12]
2500 A SMCT2500R
3000 A SMCT3000R
3200 A SMCT3200R
MTZ3
2000 A SMCT2000Y
2500 A SMCT2500Y
3000 A SMCT3000Y
3200 A SMCT3200Y
4000 A SMCT4000Y
5000 A SMCT5000Y
6000 A SMCT6000Y
7
MINIATURE AND MOLDED CASE
CIRCUIT BREAKERS
[9] Four MDGF sensors (phase + 1 neutral) are required for MTZ2; eight MDGF sensors are required for MTZ3. For SGR system only one sensor (neutral) is required for MTZ2; two sensors for
MTZ3
[10] Oversized neutral protection = 1.6 Ir where Ir = long time pick-up
[11] Oversized neutral protection = 1.6 Ir where Ir = long time pick-up.
[12] For MTZ2 20L1/L circuit breaker only
9/13/2019