Schneider ATV71HC28N4 Variable-Speed Drive
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 15305023276 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Model | ATV71HC28N4 |
| Product Series | Altivar 71 |
| Product Type | Variable-Speed Drive / Frequency Converter |
| Application | Complex and high-power industrial machines |
| Rated Motor Power | 280 kW / 450 HP |
| Input Voltage | 380–480 VAC |
| Input Phase | Three-phase |
| Input Voltage Tolerance | -15% to +10% |
| Input Frequency | 50–60 Hz |
| Line Current at 380 V | 494 A |
| Line Current at 480 V | 396 A |
| Apparent Power | 325.1 kVA at 380 V |
| Rated Output Current | 550 A at 2.5 kHz |
| Maximum Transient Current | 825 A / 60 s; 907 A / 2 s |
| Output Frequency | 0.1–500 Hz |
| Nominal Switching Frequency | 2.5 kHz |
| Switching Frequency | 2.5–8 kHz adjustable |
| Compatible Motors | Asynchronous and synchronous motors |
| Motor Control Methods | V/F control, sensorless flux vector control, sensor-based flux vector control, and ENA energy adaptation |
| Speed Range | Up to 1:100 for asynchronous motors in open loop; up to 1:1000 with encoder feedback |
| Transient Over-torque | 220% of nominal motor torque for 2 s; 170% for 60 s every 10 min |
| Braking Torque | Up to 150% with braking/hoist resistor; approximately 30% without braking resistor |
| EMC Filter | Integrated |
| Maximum Motor Cable Length | 100 m with shielded cable; 200 m with unshielded cable |
| Prospective Short-Circuit Current | 50 kA |
| Assembly Style | Heatsink-mounted |
| Variant | Reinforced version |
| Communication Interfaces | Modbus, CANopen |
| Modbus Interface | 2-wire RS-485 |
| Optional Communication | PROFIBUS DP, Modbus TCP, EtherNet/IP, DeviceNet, CC-Link and other communication options |
| Typical Applications | Large pumps, fans, compressors, conveyors, lifting equipment and high-power process machinery |
| System Integration | PLC, DCS, SCADA and industrial automation systems |
| Protection Rating | IP20 |
| Cooling Method | Forced-air / heatsink cooling |
| Mounting Orientation | Vertical |
| Operating Temperature | Application-dependent; derating may be required under elevated temperature conditions |
| Braking System | Supports external braking resistors and braking units |
| Product Status | Discontinued model; suitable for existing-system maintenance, replacement and spare-parts applications |
| Dimensions | 1190 × 377 × 595 mm |
| Weight | 207 kg |
FAQ
1. What is the main function of the Schneider ATV71HC28N4?
The ATV71HC28N4 is a high-power Altivar 71 variable-speed drive designed for controlling large industrial motors. With a 280 kW / 450 HP rating, it provides speed, torque, acceleration, and deceleration control for demanding machinery and process applications.
2. What power supply does the ATV71HC28N4 require?
The ATV71HC28N4 uses a three-phase 380–480 VAC supply with an allowable input voltage tolerance of -15% to +10%. The line current is approximately 494 A at 380 V and 396 A at 480 V. Because of the high operating current, the incoming power system, protection devices, cables, and switching equipment must be correctly sized.
3. What is the rated output current of the ATV71HC28N4?
The nominal output current is 550 A at the 2.5 kHz nominal switching frequency. The drive can provide up to 825 A for 60 seconds and 907 A for 2 seconds during transient overload conditions. Actual overload capability depends on the load, switching frequency, ambient temperature, and installation conditions.
4. Which motor control methods are supported by the ATV71HC28N4?
The drive supports voltage/frequency control, sensorless flux vector control, and sensor-based flux vector control. It also supports the ENA energy adaptation system for certain unbalanced-load applications. The appropriate control mode should be selected according to the motor type, required starting torque, speed accuracy, and feedback configuration.
5. What is the maximum motor cable length for the ATV71HC28N4?
The typical maximum motor cable length is 100 m when using shielded cable and 200 m when using unshielded cable. For long cable runs, engineers should evaluate EMC performance, motor insulation stress, grounding, reflected-wave effects, and possible output filtering before commissioning the drive.
6. What should be checked if the ATV71HC28N4 generates an overcurrent fault?
Check the motor cables, motor insulation, grounding, mechanical load, and motor parameters. Excessive acceleration, mechanical blockage, incorrect motor data, short circuits, or an unsuitable control configuration can result in overcurrent conditions. The fault history and actual output current should be reviewed to determine whether the problem is electrical, mechanical, or parameter-related.
7. Can the ATV71HC28N4 provide high starting and transient torque?
Yes. The ATV71HC28N4 can provide significant transient over-torque capability, reaching approximately 220% of nominal motor torque for 2 seconds and 170% for 60 seconds under specified conditions. This makes it suitable for applications that require high starting torque or short-duration overload capability, provided the motor and mechanical system are correctly selected.
8. Can the ATV71HC28N4 be used with an external braking resistor?
Yes. The drive supports external braking and hoist resistor solutions. With an appropriate braking resistor, braking torque can reach up to approximately 150% under specified conditions. For high-power applications, the braking system must be selected according to load inertia, deceleration time, braking frequency, regenerated energy, and thermal duty rather than motor power alone.
Schneider ATV71HC28N4 Variable-Speed Drive is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13950166376 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.
