22C-D310A103 Allen-Bradley 480V 250HP Adjustable Frequency Drive

Product Overview

The Allen-Bradley 22C-D310A103 is a heavy-duty PowerFlex 400 Adjustable Frequency Drive engineered for high-capacity industrial fan and pump applications. Delivering a massive 250 HP (160 kW) of power, this 310A continuous-rated drive is a cornerstone for large-scale infrastructure projects. The Allen-Bradley 22C-D310A103 operates on a 380-480V AC 3-phase input and is housed in a robust Frame Size G (IP30/NEMA Type 1) enclosure, ensuring reliable performance in demanding environments like mine ventilation and water treatment plants.

Technical Configuration

Engineered for massive torque and sophisticated multi-motor management:

• Brand: Allen-Bradley (Rockwell Automation)
• Model Number: 22C-D310A103
• Power Output: 250 HP / 160 kW (310 Amps Continuous)
• Input Rating: 3-Phase 380-480V AC, 50/60 Hz
• Frame Size: Frame G (IP30 / NEMA Type 1)
• Control System: 4-motor control (400% capacity) with auto-load balancing
• Standard Communication: Modbus RTU, Metasys N2, DSI, and FLN
• Waveform: Sinusoidal PWM for smooth motor operation

Technical Specifications

Engineering Advantages

The Allen-Bradley 22C-D310A103 stands out with its multi-motor control capability, allowing a single drive to manage up to four motors simultaneously with automatic load balancing. Despite its immense power output, the unit maintains a streamlined weight of 20 kg for its class, facilitating easier installation in large-scale control cabinets. It features a sophisticated PID control loop for precise pressure and flow regulation, while the Sinusoidal PWM reduces motor noise and heating. For complex integration, it offers a wide array of optional communication cards including EtherNet/IP and BACnet.

Technical FAQs

Q1: What happens to the current rating if my control room exceeds 45°C?
A1: The 22C-D310A103 features a thermal derating curve; while it provides 310A at 45°C, the continuous current capacity drops to 290A if operating at 50°C.

Q2: Can this drive handle large gauge wiring for high-current throughput?
A2: Yes, the terminal blocks are specifically designed to accommodate heavy-duty industrial wiring from 3/0 AWG up to 300 MCM to ensure safe and efficient power delivery.

Q3: Is this drive suitable for outdoor cooling tower applications?
A3: The IP30/NEMA Type 1 rating provides protection against solid objects but is not waterproof. For outdoor cooling towers, the drive must be installed within a secondary NEMA 3R or NEMA 4 rated enclosure to protect it from moisture and corrosive elements.