Terms & Conditions
Locations
This braking unit is an option for variable speed drives of Altivar range. The minimum resistor value to associate is 2.5Ohm. 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 28kg.
Products specifications
| Attribute name | Attribute value |
|---|---|
| Main | |
| Protection type | integrated thermal protection by thermal probe |
| Range compatibility | Altivar Process ATV900 |
| Product compatibility | variable speed drive ATV930 without braking chopper 160 kW 380...480 V, variable speed drive ATV930 without braking chopper 130 kW 380...480 V, variable speed drive ATV930 without braking chopper 110 kW 380...480 V |
| Minimum resistor value to associate | 2.5 Ohm |
| Thermal losses | 400 W |
| Complementary | |
| Depth | 303 mm |
| Width | 216 mm |
| Activation threshold | 780 V DC +/- 1 % |
| Operating position | vertical +/- 10 degree |
| Load factor | 1 for 160 kW at constant power and at engage threshold, 0.5 for 200 kW at constant power and at engage threshold, 0.15 for 250 kW at constant power and at engage threshold, 0.05 for 320 kW at constant power and at engage threshold |
| Maximum braking power | 160 kW |
| Maximum DC bus voltage | 850 V |
| Net weight | 17 kg |
| Permanent braking power | 100 kW (at constant power and at engage threshold) |
| Volume of cooling air | 166 m3/h |
| Height | 658 mm |
| Mechanical robustness | vibrations class 3M4 conforming to IEC 60721-3-3 |
| Environment | |
| Operating altitude | 1000...4000 m with current derating 1 % per 100 m, <= 1000 m without derating |
| Ambient air temperature for storage | -40-70 °C |
| IP degree of protection | IP21 (on top), IP20 |
| Ambient air temperature for operation | -10-50 °C |
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