Eaton AA13A – NEMA A200 Thermal Overload Relay | 3-Pole | 0.25–26.2A
Eaton AA13A – NEMA A200 Thermal Overload Relay | 3-Pole | 0.25–26.2A
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The Eaton AA13A is a NEMA A200 series, Type A, ambient-compensated thermal overload relay designed for three-phase motor protection in industrial starters. With a full-load current range of 0.25 to 26.2 amperes and Class 20 trip characteristics, it provides reliable motor protection for a wide range of applications.
Also known as the Cutler-Hammer AA13A, this relay mounts directly to NEMA motor starters and features a 1NC auxiliary contact for control circuit integration. Ambient compensation ensures consistent trip performance across varying temperature environments.
Key Specifications
- Part Number: AA13A
- Manufacturer: Eaton (Cutler-Hammer)
- Series: NEMA A200 / Freedom Series
- Relay Type: Thermal, Type A
- Trip Class: Class 20
- Poles: 3-Pole
- Full Load Current Range: 0.25–26.2A
- Auxiliary Contact: 1NC
- Mounting Type: Starter Mounted
- Ambient Compensation: Yes
- Voltage Rating: 600V AC
- Certifications: UL Listed, CSA Certified
Why Choose the Eaton AA13A?
- Wide Current Range: Covers motors from fractional horsepower to 26.2A FLA — ideal for NEMA Size 0, 1, and 2 starters.
- Ambient Compensation: Maintains accurate trip points regardless of surrounding temperature changes, reducing nuisance trips.
- Class 20 Protection: Balances motor protection with allowance for longer acceleration times — suited for high-inertia loads.
- Direct Starter Mount: Snap-on installation to Eaton NEMA A200 contactors — no separate panel mounting required.
- 1NC Auxiliary Contact: Integrates with control circuits for remote fault indication or system interlocking.
Typical Applications
- Three-phase AC motor starters (NEMA Size 0 and 1)
- Pump and fan motor protection
- Compressor control panels
- HVAC and building automation systems
- Industrial machinery and conveyor drives
Compatibility
The AA13A is designed for use with Eaton A200 series NEMA motor starters and contactors. It is compatible with Eaton Freedom Series starters in NEMA Sizes 0 and 1. Replacement for Type A overload relay applications in manual reset mode (3-pole configurations).