Miniature circuit breaker VA47-29 2P 20A 4,5kA C IEK

Основные характеристики
| Nominal rated current, А | 20.0 |
| Nominal rated voltage, В | 400 |
| Release characteristic | C |
| Rated short-circuit breaking capacity EN 60898, кА | 4,5 |
| Number of poles | 2 |
Описание
The motor (or output) choke is designed to improve the quality of the motor power supply and is installed at the output of the frequency converter. The motor choke increases the inductance in the output circuit and reduces current fluctuations and voltage rise rate, thereby increasing the service life of the motor windings. The use of the output choke is advisable with a sufficiently long power circuit from the frequency converter to the engine. Usually it's recommended to put in the circuit length of more than 20m. At large distances of 50 meters or more from the frequency converter to the engine, the use of the choke is mandatory. ONI chokes differ in the stability of the respective characteristics due to the use in the production of high-quality materials, strict compliance with the intricacies of the manufacturing process in the production and stringent final inspection of finished products.
Особенности конструкции
Технические характеристики
| Nominal rated current, А | 20.0 |
| Nominal rated voltage, В | 400 |
| Release characteristic | C |
| Rated short-circuit breaking capacity EN 60898, кА | 4,5 |
| Number of poles | 2 |
| Voltage type | Перемен./постоян. (AC/DC) |
| Range of use | Промышленное и бытовое |
| Width in number of modular spacings | 2 |
| Frequency, Гц | 50 |
| Electromagnetic release | Да |
| Number of protected poles | 2 |
| Residual release | Нет |
| Power loss, Вт | 9.0 |
| Explosion protection | Без взрывозащиты |
| Rated surge voltage invariability, кВ | 4 |
| Degree of protection (IP) | IP20 |
| Type of electric connection | Винтовое соединение |
| Additional equipment possible | Да |
| Ambient class | УХЛ4 |
| Rated short-circuit breaking capacity Icn EN 60898 at 230 V, кА | 4.5 |
| Number of poles (total) | 2 |
| Power poles quantity | 2 |
| Suitable for motor safety switch | Да |
| Built-in depth, мм | 73,6 |
| Switch off technique | Тепловой, электромагнитный |
| Max. cross section incoming cable, мм² | 25 |
| Current limiting class | 3 |
| Rated short-circuit breaking capacity Icn EN 60898 at 400 V, кА | 4.5 |
| Release actuating time in short-circuit tm zone, с | 0,1 |
| Mounting rail type | 35x7.5 |
| Nominal voltage DC, В | ≤ 48 |
| Mounting method | на DIN-рейку |
| Thermal release | Да |
| Electronic release | Нет |
Документация
Паспорта и РЭ









