Product Overview
The Schneider Electric ATV303HU22N4 serves as a compact and high-efficiency variable speed drive (VSD) specifically engineered for three-phase asynchronous motors. Designed for 400V systems with a 2.2 kW (3 HP) power rating, this Altivar 303 series drive provides precise speed control while maintaining a small physical footprint. By integrating essential control power supplies directly into the unit, Schneider Electric has simplified the installation process for engineers and reduced the overall cost of the control cabinet.
Functional Capabilities
- Optimizes Motor Control: The drive regulates the frequency and voltage supplied to three-phase motors. Consequently, it allows for smooth start-ups, precise speed adjustments, and energy-efficient operation in a variety of industrial environments.
- Integrates Logic Power Supply: This unit features a built-in 19–30V DC (100 mA) internal source for logic inputs. Because this supply includes integrated overload and short-circuit protection, it eliminates the need for an external power supply to manage basic switch commands.
- Supports Analog Precision: The ATV303HU22N4 provides a dedicated 10–10.8V DC (10 mA) output specifically for reference potentiometers. This stable voltage source supports potentiometers from 2.2 to 10 kOhm, allowing operators to achieve high-resolution manual speed control.
- Enhances System Protection: Advanced internal mechanisms actively safeguard the drive against electrical faults. Specifically, the drive monitors for phase loss, overcurrent, and thermal overload, which significantly extends the lifespan of both the drive and the connected motor.
- Reduces Wiring Complexity: By housing all necessary power sources for control functions internally, the drive reduces the number of external components. As a result, technicians can complete wiring faster and with a lower risk of connection errors.
Technical Specifications
- Manufacturer: Schneider Electric
- Model Number: ATV303HU22N4
- Module Type: Variable Speed Drive (VSD) / Inverter
- Power Rating: 2.2 kW (3 HP)
- Input Voltage: 380V to 460V AC (Three-Phase)
- Output Current: High-performance torque control
- Control Logic: Positive and Negative logic support
- Weight: 1.9 kg
- Dimensions: 27.9 x 21.6 x 6.3 cm
- Origin: France
- Current Status: Active
Primary Applications
Maintenance teams and automation designers frequently specify the ATV303HU22N4 for mid-range power applications. For instance:
- Conveyor Systems: It manages the acceleration and deceleration of transport belts, preventing mechanical shock and ensuring smooth product handling.
- Fan and Pump Control: The drive adjusts motor speeds to meet actual demand. By doing so, it significantly reduces energy consumption compared to fixed-speed across-the-line starting.
- Simple Machine Tools: It provides the variable torque and speed necessary for industrial mixers, grinders, and small-scale drilling equipment.
- Material Processing: The module coordinates the speed of rollers and feeders in textile or paper processing, where maintaining constant material tension is critical for quality.
