Overview
The Allen-Bradley 193-EEBB electronic overload relay is a compact, solid-state protection device engineered for three-phase motor circuits in the sub-amp to single-amp range. As part of the E1 Plus family, this relay combines electronic sensitivity with mechanical simplicity, replacing older thermal designs while maintaining compatibility with standard contactor mounting.
Key Features
- Current range: Adjustable from 0.2 to 1.0 amps for fractional-horsepower motors
- Dual reset modes: Automatic or manual reset selectable for operational flexibility
- Phase loss detection: Protects three-phase motors against single-phase operation
- Adjustable trip classification: Class 10, 20, 30, or 10D for matched motor characteristics and application requirements
- Solid-state electronics: No thermal mass; faster response than bimetal designs
- Standard mounting: Direct bolt-on to 100-C09, 100-C12, 100-C16, and 100-C25 contactors
Technical Specifications
- Model: 193-EEBB
- Overload type: Electronic solid-state
- Current adjustment: 0.2 to 1.0 A
- Phase configuration: 3-phase
- Reset options: Automatic and manual
- Phase loss protection: Yes
- Mounting: 100-C09, 100-C12, 100-C16, 100-C25 contactors
- Operating temperature: –20 to +60°C
- Certifications: UL 508, CSA C22.2 No. 14, EN 60947-4-1, EN 60947-5-1
- Typical automatic reset time: 120 seconds
Typical Applications
- Small three-phase fractional-horsepower motor protection
- Conveyor drives and material handling systems
- HVAC fan motors and blower protection
- Pump starter circuits with tight current ratings
- Machine tool spindle and auxiliary motor circuits
Compatibility & Replacements
The 193-EEBB mounts directly to Allen-Bradley 100-C09, 100-C12, 100-C16, and 100-C25 electromagnetic contactors. It is part of the broader Bulletin 193 E1 Plus overload relay family and offers electronic performance equivalent to older thermal overload designs. For larger current requirements, related models in the same series include the 193-EEEB (5.4–27 A) and 193-EEFD (9–45 A). Always verify contactor compatibility and current rating before ordering.
