Overview
The Sumitomo AF504-3A7 is a compact transistor inverter from the AF-500 series designed for general-purpose AC motor control in industrial applications. This used unit delivers solid performance for 5HP motor loads, with input specifications of 400-460V at 50/60Hz and output current of 8.7A. The AF-500 series is known for straightforward operation and reliable field performance in small to medium horsepower applications.
Key Features
- Input voltage range: 400–460V, 50/60Hz compatible
- Output current: 8.7A (5.36HP rated)
- Compact transistor inverter design for space-constrained installations
- Standard control connectors for straightforward integration
- Manufactured in Japan; used condition, fully functional
Technical Specifications
The Sumitomo AF504-3A7 delivers consistent performance within its rated envelope:
- Horsepower Rating: 5HP
- Input Voltage: 400–460V, 50/60Hz
- Output Current: 8.7A
- Power Output: 5.36 HP
- Inverter Type: Transistor-based
- Manufacturer: Sumitomo Machinery
- Country of Origin: Japan
Typical Applications
The AF504-3A7 is well-suited for:
- Fan and pump motor drives
- Conveyor belt systems
- Small machine tool spindles
- Industrial compressor control
- General-purpose variable-speed AC motor control
Compatibility & Replacements
Compatible With
- Standard 3-phase AC motors rated 5HP at 460V
- Industrial control systems using 400–460V supply
- 50Hz and 60Hz power systems
- Typical industrial PLC and relay-based control circuits
Replaces / Drop-In Replacement For
- Other Sumitomo AF-500 5HP models with matching voltage specifications
- Verify compatibility with your system integrator before ordering
Works With
- Standard 3-phase AC induction motors
- Conventional hardwired or soft-starter control logic
- Industrial 460V / 50–60Hz distribution systems
- No special networking protocols required; operates as a standalone drive
