Overview
The Allen-Bradley 22B-D1P4N104 is a PowerFlex 40 variable frequency drive (VFD) engineered for dependable motor speed control in compact industrial environments. This three-phase AC drive operates at 342–528 VAC input and delivers 0.5 HP (0.4 kW) continuous output, making it ideal for machine tools, fans, pumps, conveyors, and material handling applications where space and cost-effectiveness are priorities.
Key Features
- Sensorless Vector Control: Delivers high starting torque, excellent speed regulation, and auto-boost and slip compensation without an encoder.
- Compact Frame Size B: Panel-mountable open enclosure (IP20) with dimensions 3.94″ W × 12.6″ H × 5.35″ D—fits tight installations.
- RS-485 Communication: Integrated serial interface for networking and remote monitoring; compatible with Drive Explorer and Drive Tool SP PC software.
- Digital Keypad Interface: Built-in human-machine interface for local parameter adjustment, status monitoring, and diagnostics.
- Proven Reliability: Part of the cost-effective PowerFlex family spanning 0.2–11 kW with global OEM adoption.
Technical Specifications
- Input Voltage: 342–528 VAC, 3-phase, 48–63 Hz
- Input Current (Continuous): 1.8 A
- Output Power: 0.5 HP (0.4 kW)
- Output Current (Continuous): 1.4 A
- Output Voltage: 0–460 VAC
- Output Frequency: 0–400 Hz
- Frame Size: B
- Enclosure Rating: IP20, NEMA UL Type Open
- Mounting Altitude (Derating-Free): 1000 m (3300 ft.)
- Operating Temperature: 10–40°C (14–104°F)
- Dimensions: 3.94″ W × 12.6″ H × 5.35″ D (100 mm × 320 mm × 136 mm)
- Control Mode: Sensorless Vector Control (SVC)
- Communication: RS-485 serial interface
- Certifications: UL508C, CAN/CSA-22.2, CE, EMC, AS/NZS 1997 Group 1 Class A
- Filter: None (non-filtered design)
Typical Applications
The 22B-D1P4N104 excels in OEM and standalone machine control scenarios requiring compact, field-configurable speed adjustment:
- Machine tool spindle and feed drive modulation
- Fan and blower speed control with varying loads
- Pump flow regulation in HVAC and process systems
- Conveyor belt acceleration and deceleration
- Material handling equipment motor speed management
Compatibility & Replacements
The 22B-D1P4N104 is compatible with any 0.5 HP three-phase AC motor rated 342–528 VAC. For panel mounting, use M4 (#8-32) fasteners with 14–17 lb-in torque. The drive integrates with Rockwell Automation Studio 5000 Logix Designer and Drive Explorer for programming and tuning. Related models in the PowerFlex 40 lineup: 22B-D012N104 (7.5 HP), 22B-D024N104 (15 HP), and 22B-D4P0N104 (2 HP) offer higher power ratings for larger motor loads. The newer 22D-D1P4N104 (PowerFlex 40P) provides panel-mount preset logic enhancements if additional sequencing is required. Always verify input voltage and phase configuration before substitution.





