Schneider Electric VW3A7103 resistance braking unit - 300 kW - 690 V - For variable speed drive
Description of VW3A7103
This braking unit is an option for variable speed drives of Altivar range. The minimum resistor value to associate is 2Ohm. This braking unit allows Altivar 71 drives to operate while braking to a standstill or during “generator” operation, by dissipating the energy in the braking resistor. Its protection index is IP20. Thermal protection is provided by an integrated temperature probe. It weighs 80kg.
| Range compatibility | Altivar 71 Altivar 61Q Altivar 71Q Altivar 61 |
|---|---|
| product compatibility | ATV61HC25Y ATV61HC31Y ATV61HC40Y ATV61QC25Y ATV61QC31Y ATV61QC40Y ATV71HC20Y ATV71HC25Y ATV71HC31Y ATV71QC20Y ATV71QC25Y ATV71QC31Y |
| Thermal losses | 650 W |
| Minimum resistor value to associate | 2 Ohm |
| protection type | Integrated thermal protection by thermal probe |
| Maximum braking power | 450 kW |
|---|---|
| permanent braking power | 300 kW at 690 V (at constant power and at engage threshold) |
| load factor | 0.05 for 450 kW at constant power and at engage threshold 0.15 for 400 kW at constant power and at engage threshold 0.5 for 350 kW at constant power and at engage threshold |
| Activation threshold | 1075 V DC +/- 1 % |
| Maximum DC bus voltage | 1100 V |
| Net weight | 80 kg |
| Volume of cooling air | 600 m3/h |
| Operating position | Vertical |
| IP degree of protection | IP20 |
|---|---|
| operating altitude | <= 1000 m without derating 1000...2260 m 1 % per 100 m |
| Ambient air temperature for operation | -10…50 °C |
| Ambient air temperature for storage | -25…70 °C |
| pollution degree | 2 conforming to EN 50178 |
| Vibration resistance | 0.2 gn |
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 50.0 cm |
| Package 1 Width | 36.8 cm |
| Package 1 Length | 127.8 cm |
| Package 1 Weight | 99.0 kg |
| Unit Type of Package 2 | CAR |
| Number of Units in Package 2 | 1 |
| Package 2 Height | 40.0 cm |
| Package 2 Width | 35.0 cm |
| Package 2 Length | 120.0 cm |
| Package 2 Weight | 100.0 kg |
| Unit Type of Package 3 | PAL |
| Number of Units in Package 3 | 1 |
| Package 3 Height | 48.0 cm |
| Package 3 Width | 128.0 cm |
| Package 3 Length | 54.0 cm |
| Package 3 Weight | 99.0 kg |
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