Overview
The Minarik SL32 is a field-proven DC motor speed control designed for shunt wound motors operating on 115VDC. This unit accepts standard 115V AC input at 50/60Hz and outputs variable DC voltage to the motor armature, enabling smooth speed regulation from 0 to 100%. With a 2-amp current capacity, the SL32 is ideal for fractional horsepower applications in machine tools, conveyors, fans, and material handling equipment.
Key Features
- 115VDC motor armature output with 0-100% speed control
- 2A maximum current rating for dependable operation
- 115V AC 50/60Hz input power supply
- Compact design suitable for tight panel installations
- Potentiometer-based speed adjustment for ease of operation
- Proven reliability in industrial production environments
Technical Specifications
| Output Voltage | 0–115 VDC variable |
| Output Current | 2A maximum |
| Input Power | 115V AC, 50/60Hz |
| Motor Type | Shunt wound DC (series-parallel rated) |
| Horsepower Rating | 1/15 HP nominal |
| Speed Control Range | 0–100% |
| Control Method | Potentiometer adjustment |
| Manufacturer | Minarik Electric / Minarik Drives |
| Part Number | SL32 (SL32-115V variant) |
| Status | Discontinued by manufacturer |
Typical Applications
- Conveyor drive systems and material handling equipment
- Machine tool speed control (drills, lathes, grinders)
- Fan and blower speed regulation
- Printing equipment motor control
- Laboratory and test stand instrumentation
- Industrial machinery requiring variable-speed DC motors
Compatibility & Replacements
Compatible With
- 115VDC shunt wound fractional-horsepower motors
- Direct 115V AC line power (50/60Hz)
- Standard industrial panel mounting
- Applications rated 1/15 HP at 115VDC nominal
Replaces / Drop-In Replacement For
The SL32 is a legacy speed control no longer in production. Verify compatibility with your system integrator before ordering as this is a discontinued model. Newer Minarik DC drive models (MM23001C series and later) offer expanded features, but may require rewiring or panel modifications.
Works With
- 115V AC 50/60Hz single-phase power systems
- Manual potentiometer speed adjustment (no PLC or network integration)
- Standard DC motor terminal connections (A1, A2 armature; F1, F2 field)
- Conventional industrial control wiring and safety equipment



