Overview
The Eaton Cutler-Hammer BA13JP thermal overload relay is a heavy-duty 3-pole protection device built for motor control and power distribution systems. This BA13JP model delivers Class 20 thermal trip classification with ambient compensation, making it suitable for installations where ambient temperature variations occur. The unit handles a full-load current range of 0.25–26.2A and carries a 600V contact rating, ensuring compatibility with standard industrial motor starters and contactor coils.
Key Features
- 3-pole thermal type with Class 20 inverse time-delay trip characteristic
- Full-load ampere range: 0.25–26.2A; adjustable via calibrated dial
- Ambient compensated design for consistent operation across temperature variations
- 600V AC contact rating for use in standard industrial circuits
- Manual reset for controlled restart after trip condition
- Panel-mounted configuration with standardized footprint
- 1NC (normally closed) auxiliary contact for alarm and status signaling
- NEMA A200 Series construction; UL listed and CSA certified
Technical Specifications
- Poles: 3
- Type: Thermal (bimetallic)
- Trip Class: Class 20
- Full-Load Current Range: 0.25–26.2A
- Contact Rating: 600V AC
- Ambient Compensation: Yes
- Reset Type: Manual
- Mounting: Panel / Starter cavity
- Auxiliary Contact: 1NC
- Series: NEMA A200
- Certifications: UL Listed, CSA Certified
Typical Applications
- 3-phase motor starter protection in commercial HVAC systems
- Industrial machine tool motor control circuits
- Pump and compressor motor overload safeguards
- General-purpose motor circuits requiring Class 20 trip response
- Electrical distribution panels and control enclosures
- Conveyor and material handling equipment motor protection
Compatibility & Replacements
Compatible With
- Eaton Cutler-Hammer NEMA A200 Series motor starters
- Standard 3-pole contactor cavities (Size 1 and Size 2)
- AC induction motors rated 0.25–26.2A full load
- Motor control circuits with 600V nominal voltage
- Industrial control panels and electrical enclosures
Replaces / Drop-In Replacement For
- Cutler-Hammer BA13 (non-compensated Type A)
- Other NEMA A200 Series 3-pole Type B relays with matching current range
Works With
- Cutler-Hammer C320KG and larger contactor series
- NEMA standard motor control equipment (480V and below systems)
- Bimetallic thermal protection design (industry-standard approach)
- Manual and automatic motor starter configurations
