Overview
The Leeson Speedmaster 174915 is a compact variable frequency drive (VFD) engineered for 1HP motor control applications. As part of the Speedmaster Micro Series, this drive combines full-featured inverter functionality with a space-saving design ideal for control panel integration. Leeson ACSpeedmaster Micro Series compact inverters offer “big drive” full features for adapting standard or premium efficiency three phase motors to adjustable speed operation.
Key Features
- Full torque down to 1Hz with 200% starting torque for demanding low-speed applications
- Programming module for fast, error-free drive configuration with over 50 programmable functions and 11 isolated I/O terminals
- Advanced IGBT power conversion devices for efficient motor control
- Available NEMA IP22, NEMA 1 (IP31), or NEMA 4/12 (IP65) enclosure options for various environments
- Compact contactor-style design takes up minimal room in control panels and features easy wiring
- LCD display with plain-English programming interface eliminates complex coded symbols
Technical Specifications
Verify the exact specifications for this particular used unit with your supplier, as configuration details may vary:
- Horsepower: 1 HP
- Product Series: Speedmaster Micro Series
- Type: Variable Frequency Drive (VFD)
- Control Type: Adjustable speed AC motor control
- I/O Configuration: 11 isolated I/O terminals plus programmable relay outputs
- Programmable Functions: 50+
- Frequency Range: 0.5 Hz to maximum per nameplate (variable torque to 60 Hz, constant horsepower above 60 Hz)
- Mounting: Vertical surface mounting
- Display: LCD with multi-language support
Typical Applications
Leeson VFDs are designed to work seamlessly with motors in HVAC, manufacturing, food processing, construction, material handling, and more. Common uses include:
- Conveyor and pump speed control
- Hoist and lifting systems
- Machine tool drives
- Packaging machinery
- Material handling systems
- Process speed optimization in manufacturing
Compatibility & Replacements
Compatible With
- Standard and premium efficiency three-phase AC motors
- Industrial control systems requiring adjustable speed motor operation
- HVAC, manufacturing, food processing, and material handling equipment
- Control panels with NEMA enclosure ratings
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The Leeson Speedmaster 174915 is part of the Micro Series product family; confirm specific replacement compatibility with legacy Speedmaster models or competing brands with your technical team.
Works With
- Three-phase AC motors (standard and premium efficiency)
- Load reactors and dV/dt filters for motor cable runs exceeding 100 feet
- Customizable control logic via 50+ programmable functions
- External start/stop and speed reference inputs
- Standard industrial 24 VDC control signals












