Main technical parameters | |||
Project | Technical parameter | ||
Standards and specifications | Type tested Low voltage complete switchgear (TTA) Arc test under internal fault conditions |
IEC60439-1G87251 lEC61641.GB/Z18859 |
|
Air gap and creepage distance | Rated impulse withstand voltage (U) | 8kV | |
Overvoltage type | Ⅲ | ||
Pollution level | Ⅲ | ||
Rated insulation voltage (Ui) | 690V | ||
Rated operating voltage (U) | To 400V | ||
Rated current horizontal busbar (3-pole and 4-pole) |
Main busbar | Rated current | To 187 |
Rated peak tolerance current (lpk) | |||
Rated short time tolerance current (lcw) | To 6300 | ||
Vertical busbar for circuit breaker technology | Rated current | To 3200 | |
Rated peak tolerance current (lpk) | |||
Rated short time tolerance current (lcw) | 1-2b-3b-4 | ||
Rated current | IP20-31-42-54 | ||
Vertical busbar for fixed mounting design | Rated peak tolerance current (lpk) | ||
Rated short time tolerance current (lcw) | 700/900 | ||
Vertical busbar for insert design and pull out design | Rated current | 1100/1300 | |
Rated peak tolerance current (lpk) | 400/600/1000 | ||
Rated short time tolerance current (lcw) | 2200 | ||
Electrical appliances · Rated current | Circuit breaker | To 6300 A | |
Cable feed circuit | To 630 A | ||
The interior division of cabinet | Form 1 to form 4 | IEC60439-1,7.7节,GB7251 | |
Surface treatment | Skeleton parts | Galvanization/powder coating/painting | |
The shell | Galvanization/powder coating/painting | ||
Door | Powder spraying/painting | ||
Pretection grade | Conform to IEC60529, GB4208 | IP30,IP31,IP40,IP41,IP42,IP54 |