Overview
The Allen-Bradley 140-MN-0063 manual motor starter protector delivers magnetic trip and thermal overload protection for small fractional-horsepower motors. This 3-pole unit is designed for direct-on-line (DOL) motor starting with integrated protective functions, including ambient temperature compensation to maintain consistent trip thresholds across varying environmental conditions. Bulletin 140 starters are field-proven components in machinery and process automation requiring simple, reliable motor control without complex electronics.
Key Features
- 3-pole configuration for three-phase motor control
- Adjustable overload protection with thermal compensation
- Manual toggle/lever operation for safe operator control
- Magnetic trip function for fast fault response
- DIN rail mountable design for compact panel installation
- IP20 enclosure rating for industrial environments
Technical Specifications
- Model: 140-MN-0063
- Rated Current Range: 0.4–0.63 A
- Voltage Rating: 690 VAC
- Poles: 3-pole
- Mounting: DIN rail
- Protection Rating: IP20
- Ambient Temperature Range: −20°C to +60°C
- Manufacturer: Allen-Bradley (Rockwell Automation)
- Country of Manufacture: Switzerland
- Series: Series D
Typical Applications
- Small fan and blower motors
- Fractional-horsepower pump controllers
- Conveyor belt drive protection
- Machine tool motor circuits
- Industrial control cabinets and MCC (Motor Control Centers)
- HVAC unit compressor starting circuits
Compatibility & Replacements
Compatible With
- Three-phase AC motors rated 0.4–0.63 A full-load current
- Standard industrial motor control circuits (direct-on-line)
- DIN 35 mm rail-mounted control panels
- Rockwell Automation Bulletin 140 ecosystem
- IEC 60947-1 compliant motor starter applications
Replaces / Drop-In Replacement For
- Previous-generation Bulletin 140 starters in the same current class
- Legacy manual motor starters with equivalent 0.4–0.63 A ratings
- Verify compatibility with your system integrator before ordering to ensure mechanical and electrical fit within your control cabinet
Works With
- Thermal overload relays (Allen-Bradley Bulletin 193 relay family)
- Auxiliary contact blocks (Series D and compatible models)
- Standard AC contactor coils in multi-starter circuits
- Industrial PLC and logic controller safety circuits
