The Ogura Clutch OPR-109F is a DC power rectifier that converts AC voltage to DC voltage for direct operation of Ogura clutches and load brake systems. This Japanese-manufactured unit delivers regulated DC 90V at 1A output from AC 100–110V input, eliminating the need for external power conditioning. The rectifier features six screw terminals for straightforward electrical interfacing and incorporates embedded back surge absorption elements to protect connected equipment. Its compact, lightweight form factor enables integration into control systems requiring direct connection to commercial AC supplies, load brakes, and control inputs without additional protection circuitry. Full-wave and half-wave rectifying configurations are supported, allowing flexibility in system design. The built-in control input terminal simplifies wiring and reduces installation complexity in applications demanding reliable DC power conversion with inherent surge suppression.
Technical Specifications
• Model: OPR-109F
• Manufacturer: Ogura Clutch Co., Ltd. (Japan)
• Function: AC-to-DC Rectifier / Power Source Equipment
• Input Voltage: AC 100–110V
• Output Voltage: DC 90V
• Output Current: 1A
• Rectification Type: Full-wave and half-wave configurations
• Electrical Connections: 6 Screw Terminals
– Key Features
• Back surge absorption elements integrated for transient protection
• Control input terminal for system integration
• Compact and lightweight industrial design
• Direct connection to AC mains, load brake, and control points
• Dual rectification mode capability
– Typical Applications
• Powering Ogura electromagnetic clutches
• Load brake system control circuits
• Industrial automation requiring regulated DC conversion
• Systems requiring surge-protected AC-to-DC conversion
– Compatibility & Integration
The OPR-109F connects directly to commercial AC power supplies via screw terminals. Its integrated surge absorption allows connection without external filtering or protection devices. The control input terminal enables direct integration with clutch control systems and load brake circuits.












