Overview
The Bodine Electric ASH-502 is an encased DC motor speed control designed for reliable variable-speed operation of permanent magnet DC (PMDC) motors and gearmotors. Rated at 115V AC input, 4.8A maximum current, and 210W output power, this Type D-C control converts AC line voltage to smooth DC output suitable for fractional horsepower industrial motor applications.
Key Features
- Encased NEMA-1 / IP-40 industrial design for robustness and dust protection
- 115V AC, 50/60 Hz single-phase input
- Continuous 4.8A output capacity at 210W power rating
- Converts line voltage to variable DC output for precise motor speed control
- Thermal overload protection and fused circuits for reliability
- Simple, field-proven operation in harsh industrial environments
Technical Specifications
| Input Voltage | 115V AC, 50/60 Hz, single-phase |
| Output Power | 210W maximum |
| Output Current | 4.8A continuous |
| Output Type | Variable DC (0–90V typical) |
| Control Type | SCR-based DC motor speed controller |
| Enclosure Type | NEMA-1 / IP-40 (encased) |
| Frequency | 50/60 Hz |
| Manufacturer | Bodine Electric Company |
| Series | ASH-500 family |
Typical Applications
- Fractional horsepower motor speed control in conveyor systems and material handling
- Variable-speed drives for packaging machinery and labeling equipment
- Industrial automation and assembly line applications
- Machine tool speed regulation and torque limiting
- OEM retrofit and replacement applications in vintage and modern equipment
Compatibility & Replacements
Compatible With
- Bodine permanent magnet DC (PMDC) motors and gearmotors, 90V and 130V rated
- Third-party PMDC fractional horsepower motors (verify voltage and power ratings)
- Existing machinery and control cabinets with 115V AC, 50/60 Hz line power
- Standard three-terminal potentiometer-based speed adjustment circuits
Replaces / Drop-In Replacement For
- Bodine ASH-400 and ASH-500 (verify original specification before ordering)
- OEM and legacy encased DC motor controls of equivalent voltage and current rating
- Original equipment manufacturer (OEM) fractional HP motor controllers
Works With
- 115V AC, 50/60 Hz single-phase power distribution
- Remote potentiometer speed adjustment (standard interface)
- Thermal overload protection and fused motor branch circuits
- PMDC motor nameplate rated for 90–130V DC input
- Enclosed control cabinet and DIN rail mounting systems
