Overview
The Allen-Bradley 1489-A1C200 is a miniature circuit breaker designed for compact, reliable overcurrent protection in industrial control systems. This 1-pole breaker features a 20A amperage rating and C-curve trip characteristic, making it suitable for circuits with moderate inrush currents common in motor control and automation applications. The DIN rail mount design allows quick installation in standard control enclosures.
Key Features
- 1-Pole Configuration – Single-phase circuit protection for standard 120V/277VAC control circuits
- 20 Amp Rating – Optimized for moderate load protection in industrial controls
- C-Curve Trip – Instantaneous protection against short circuits with tolerance for motor starting inrush
- DIN Rail Mounted – Standard 35mm DIN rail installation; space-efficient for panel layouts
- 277VAC / 48VDC Rated – Dual voltage capability for flexible deployment
- 15 kAIC Interrupting Rating – Sufficient for most control circuit faults
Technical Specifications
- Part Number: 1489-A1C200
- Manufacturer: Allen-Bradley / Rockwell Automation
- Current Rating: 20 Amperes
- Voltage Rating: 277VAC / 48VDC
- Poles: 1-Pole
- Trip Curve: C-Curve (10-14 × In instantaneous)
- Interrupting Capacity: 15 kAIC
- Mounting: DIN Rail (35mm)
- Wire Size: #18–6 AWG (single wire); #18–10 AWG (dual wire)
- Dielectric Strength: 1960 VAC
- Degree of Protection (Front): IP20
- Vibration Rating: 10–200 Hz
- Series: A
- Status: Discontinued by Manufacturer
Typical Applications
- Industrial control panel overcurrent protection
- Motor starter circuits with moderate inrush tolerance
- PLC and automation equipment branch protection
- Lighting and general load circuits in manufacturing environments
- HVAC control systems and building automation
Compatibility & Replacements
Compatible With
- Standard 35mm DIN rail enclosures
- Industrial control panels using 277VAC or 48VDC auxiliary power
- Motor control centers and combination starters
- General-purpose industrial automation systems
Replaces / Drop-In Replacement For
The 1489-A1C200 is a legacy part discontinued by Allen-Bradley/Rockwell Automation. Direct modern replacements include the 1489-A1C200A (Series A variant) or comparable Eaton/Siemens 1-pole 20A miniature breakers. Verify compatibility with your system integrator before ordering a replacement, as newer breaker designs may have different terminal configurations or UL/CSA certifications.
Works With
- Allen-Bradley control panels and enclosures
- Rockwell Automation integrated systems
- Standard DIN rail-mounted motor starters and contactors
- Industrial circuit protection schemes using C-curve breakers
