Overview
The Eaton BA13JPX is a Type B overload relay designed to protect industrial motors against overload conditions using a modern block-type, bimetallic design that provides Class 20 operation in either 1 phase or 3-phase applications. The BA13JPX is a three-pole, panel mounted, NEMA thermal Type B relay with Class 20 operation, 1 normally closed auxiliary contact, ambient compensation, and a full load range of .25–26.2A. Manufactured by Eaton Cutler Hammer, this relay is part of the Freedom starter and contactor line.
Key Features
- Type B bimetallic thermal overload design for reliable motor protection
- 3-pole configuration suitable for three-phase motor applications
- Class 20 trip characteristic provides consistent overload detection
- Ambient compensated operation for stable performance across temperature ranges
- Full load current range: 0.25–26.2A with interchangeable heater packs
- One normally closed (NC) auxiliary contact for control logic integration
- NEMA-standard panel mount design
Technical Specifications
- Relay Type: Type B thermal overload
- Poles: 3-pole
- Trip Class: Class 20
- Full Load Range: 0.25–26.2A
- Mounting: Panel mount, NEMA standard
- Auxiliary Contacts: 1 Normally Closed (NC)
- Compensation: Ambient compensated
- Part Number: BA13JPX
- Style Number: 6710C36G18
Typical Applications
- Industrial motor starter circuits and contactor assemblies
- Three-phase motor overload protection in NEMA enclosures
- Machine tool control systems requiring thermal protection
- Manufacturing equipment with motors up to approximately 30 HP (at full load range)
- Replacement for legacy Eaton Freedom starter assemblies
Compatibility & Replacements
Compatible With
- Eaton Freedom starters and contactors (Size 1 and compatible frame sizes)
- NEMA-standard motor control enclosures
- Three-phase AC power systems (50–400 Hz)
- Adjustable bimetallic relay control circuits
Replaces / Drop-In Replacement For
- Eaton BA13JPX Type B overload relays (universal sizing within Class 20 Type B family)
- Legacy Cutler Hammer overload relays in Size 1 configurations
Works With
- Eaton motor contactors and magnetic starters
- Industrial automation control systems with thermal protection requirements
- Standard motor circuit diagrams using Class 20 overload protection
- Interchangeable heater pack assemblies for load range adjustment
