Product Introduction
The Schneider ATV71HD37N4 variable speed drive from the Altivar 71 series delivers efficient motor control for complex, high-power industrial machines. Rated at 37 kW (50 hp) and operating on a three-phase 380-480 V AC supply, this drive provides precise speed adjustments while minimizing energy consumption. Its integrated EMC filter ensures electromagnetic compliance, and the included graphic terminal simplifies monitoring and configuration.
Technical Specifications Breakdown
The Schneider ATV71HD37N4 offers key performance metrics that enhance operational reliability and flexibility:
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Motor Power & Output: 37 kW / 50 hp with nominal output currents of 65 A at 460 V and 79 A at 380 V, ensuring robust power delivery for demanding applications.
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Transient Current Capability: Supports up to 130 A for 2 seconds and 118.5 A for 60 seconds, handling startup surges and load changes without tripping.
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Motor Cable Length: Allows up to 100 m shielded or 200 m unshielded cable, providing installation flexibility in large facilities.
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Control Precision: Sensorless flux vector control and flux vector control with encoder enable speed accuracy as tight as ±0.01 % of nominal speed in closed-loop mode.
Industry Applications
The Schneider ATV71HD37N4 is ideal for complex, high-power machines such as conveyors, pumps, and fans in manufacturing, mining, and water treatment. For example, in a conveyor system requiring variable speed, the drive’s steady torque control and integrated braking resistor support smooth acceleration and deceleration, reducing mechanical stress and energy costs. The ENA (Energy Adaptation) system optimizes motor flux for unbalanced loads, delivering measurable power savings.
Compatibility & Integration
The Schneider ATV71HD37N4 integrates seamlessly with automation networks through built-in Modbus and CANopen ports. It also accepts a wide range of optional communication cards, including EtherNet/IP, Profibus DP, DeviceNet, and Modbus TCP. The drive includes 7 discrete inputs, 2 relay outputs, and 2 analog inputs for flexible I/O configuration. Its IP20 protection and vibration resistance suit installation in standard industrial enclosures.
Selection Guide & Purchasing Advice
When selecting the Schneider ATV71HD37N4, verify your motor voltage and power match the drive’s specifications (37 kW, 380-480 V AC, 3-phase). Ensure adequate cable sizing for the maximum length required. For advanced control, consider adding an encoder feedback card. Purchase from reliable suppliers like PLC Source PRO (available at ubest101.myshopify.com) to guarantee genuine parts and support. The drive ships with a graphic terminal and EMC filter, reducing additional component costs.