| Three-phases |
200V AC(200V/ 220V/ 240V selectable by switch)
400V AC(380V/ 400V/ 440V selectable by switch) to be specified ( main circuit power supply and
control circuit power supply are common)
* The models which have a different main circuit power supply and a control circuit power supply are manufactureable. |
| 10A, 20A, 30A, 50A, 75A, 100A, 150A, 200A, 250A, 300A, 400A, 500A, 750A, 1000A to be specified |
| 50/60 Hz (automatic change) |
| ±10% of rated voltage |
| ±2Hz of rated frequency |
| Phase angle firing system and zero-crossing firing system |
| Specify 3 arms or 6 arms |
| Voltage, current, power feedback |
4 to 20mA DC( input resistance is approx. 100Ω)
1 to 5V DC( input resistance is approx. 50kΩ) |
| Volume signal (10kΩis recommended) |
External signal no-voltage contact or open collector
(external contact capacity 1mA 5V DC or more) |
| 0 to 5A AC of rated current |
| 0 to 100 % of output range |
| 0 to 100 % of output range |
| 1 to 20 seconds |
| 0 to 100 % of output range |
| Imbalance of approx. 40 % output range can be adjusted |
| 0 to 98 % of supplied power voltage |
No-feedback … Within ±10% of rated voltage
Voltage feedback … Within ±3% of rated voltage (Rated voltage is ±10%, at 1 to 10 times variation of load resistance)
Current feedback … Within ±3% of rated current (Rated voltage is ±10%, at 1 to 10 times variation of load resistance)
Power feedback …Within ±3% of rated voltage (Rated voltage is ±10%, at 1 to 3 times variation of load resistance)
*Note: this is not including the accuracy in the rating from 10 to 90 % and CT error. (at reference operating condition) |
| Resistive load, inductive load, (Inductive load … phase-angle firing system, primary side control of transformer, and flux density 1.2 T or lower are recommended) |
| 0.5 A or more( at 98% output of rated voltage) |
Over-current alarm (alarm output AL1)
Rapid fuse meltdown alarm (alarm output AL1)
Radiation fin over heating alarm (alarm output AL1)
Heater disconnection alarm (alarm output AL2)
Thyristor elements abnormal alarm (alarm output AL2)
Abnormal operation alarm, abnormal phase sequence alarm, Open-phase alarm Imbalance alarm (alarm output AL2)
Frequency abnormality alarm |
| 2 points,(AL1, AL2) |
Maximum load 240V AC 1A, 30V DC 1A
Minimum load 5V DC 10mA or more Electricity life 100,000 times or more
Contact protection elements not included (sold
separately) |
Melting of the rapid fuse for short-circuit 0% output at 120% of rated current (thyristor gate-off )
With current limit function high limit output value is configurable |
| Ramp setting (AI1), elevation(AI2), Current limit(AI3) |
Operational status(DI1 --- run/ stop)
Control system (DI2 --- phase angle firing/zero-cross firing)
Setting system (DI3 --- front display setting/external setting) |
| Natural air cooling for 75A or less of rated current Forced air cooling for 100A or more of rated current |
-10 to 55 ºC
In case of more than 40℃ it depends on the following derating performance. |
| 30 to 90 %RH, No dew-condensation |
| Between power supply terminal and protection conductor terminal 500V DC, 50MΩ or more |
Between power supply terminal and protection conductor terminal
2000V AC, 1 min(200V system)
2500V AC, 1 min(400V system)
Dielectric strength of cooling fan is 2000V AC |
About 6kg for 10A and 20A
About 8kg for 30A and 50A
About 13kg for 75A and 100A
About 22kg for 150A to 250A
About 36kg for 300 to 500A |
| Steel |
| Gray |
| Installed to panel |
Reference operating condition
- Ambient temperature 23℃±2℃
- Ambient humidity 55%±5%RH
- Power supply voltage rated voltage±1%
- Power supply frequency rated supply frequency
Normal operating condition
- Ambient temperature -10 to 55℃
- Ambient humidity 30 to 90%RH
- Power supply voltage rated voltage±10%
- Power supply frequency rated supply frequency ±2Hz |
