Selecting Masterpact MTZ Switches
Selecting Masterpact MTZ1 Switches
Ratings for ANSI C37 Certified Masterpact MTZ1 Non-Automatic Switches |
||
---|---|---|
Frame Rating |
800 A |
|
Withstand Rating Code |
NA |
|
Short-Time Withstand Current Rating (kA) |
Vac 50/60 Hz, 0.5 s |
42 |
Breaking Capacity |
254 Vac, 60 Hz |
42 |
508 Vac, 60 Hz |
42 |
|
635 Vac, 60 Hz |
NA |
Ratings for IEC 60947-3 Rated Non-Automatic Masterpact MTZ1 Switches |
||||
---|---|---|---|---|
Frame Rating | 800/1000 A | 1250/1600 A | ||
Withstand Rating Code | HA | HA | ||
Rated Making Capacity (Peak kA) | Icm | 220/415 Vac, 50/60 Hz | 75 | 75 |
440 Vac, 50/60 Hz | 75 | 75 | ||
500/690 Vac, 50/60 Hz | 75 | 75 | ||
1000 Vac, 50/60 Hz | — | — | ||
Short-Time Withstand Current (kA) | Icw | Vac 50/60 Hz, 0.5 s | 36 | 36 |
Breaking
Capacity (kA at 690 Vac) (with external protection relay) |
Icu | Maximum delay 350 ms | 36 | 36 |
Selecting Masterpact MTZ2 Switches
Ratings for ANSI C37 Certified Masterpact MTZ2 Non-Automatic Switches |
||||||
---|---|---|---|---|---|---|
Frame Rating |
800 A |
1600 A |
2000 A |
3200 A |
4000 A |
|
Withstand Rating Code |
HA |
HA |
HA |
HA |
HA |
|
Breaking Capacity with External Relay (kA), 50/60 Hz |
254 Vac |
65 |
65 |
65 |
65 |
65 |
508 Vac |
65 |
65 |
65 |
65 |
65 |
|
635 Vac |
65 |
65 |
65 |
65 |
65 |
|
Short-Time Withstand Current (kA) Vac 50/60 Hz, 0.5 s |
65 |
65 |
65 |
65 |
65 |
Ratings for IEC 60947-3 Rated Masterpact MTZ2 Non-Automatic Switches |
||||||
---|---|---|---|---|---|---|
Frame Rating |
800/1000/1250/1600 A |
2000 A |
2500/3200/4000 A |
|||
Withstand Rating Code |
NA |
HA |
HA |
HA |
||
Rated Making Current |
Icm |
220/415 Vac |
88 |
145 |
145 |
145 |
440 Vac |
88 |
145 |
145 |
145 |
||
500/690 Vac |
88 |
145 |
145 |
145 |
||
1150 Vac |
— |
— |
— |
— |
||
Short-Time Withstand Current (kA) |
Icw |
Vac 50/60 Hz, 1 s |
42 |
66 |
66 |
66 |
Ultimate Breaking Capacity (with external protection relay) (kA) |
Icu |
Maximum Delay |
42 |
66 |
66 |
66 |
Selecting Masterpact MTZ3 Switches
Ratings for ANSI C37 Certified Masterpact MTZ3 Non-Automatic Switches |
|||
---|---|---|---|
Frame Rating |
4000 A |
5000/6300 A |
|
Withstand Rating Code |
HA |
HA |
|
Breaking Capacity with External Relay (kA), 50/60 Hz |
254 Vac |
85 |
85 |
508 Vac |
85 |
85 |
|
635 Vac |
85 |
85 |
|
Short-Time Withstand Current (kA) Vac 50/60 Hz, 0.5 s |
85 |
85 |
Ratings for IEC 60947-3 Rated Masterpact MTZ3 Non-Automatic Switches |
|||
---|---|---|---|
Frame Rating |
4000B/5000/6300 A |
||
Withstand Rating Code |
HA |
||
Rated Making Current |
Icm |
220/415 Vac, 50/60 Hz |
187 |
440 Vac, 50/60 Hz |
187 |
||
500/690 Vac, 50/60 Hz |
187 |
||
1150 Vac, 50/60 Hz |
— |
||
Short-Time Withstand Current (kA) |
Icw |
Vac 50/60 Hz, 1 s |
85 |
Ultimate Breaking Capacity |
Icu |
Maximum Delay |
85 |