Square D FDA140203 Circuit Breaker, 20A, 1-Pole, 277V

Square D FDA140203 Circuit Breaker, a dependable 20A, 1-Pole device designed for industrial electrical service, maintenance, and replacement projects. With a rating of 277V, this breaker helps safeguard your distribution system against overcurrent while fitting into compatible 277V installations with confidence.

Overview

The FDA140203 is purpose-built for environments where reliable protection and quick, predictable tripping are essential. Use this part number to confirm compatibility with your panel or distribution setup and ensure you’re matching the exact specifications required for your application.

Key specifications

• Manufacturer: Square D
• Part Number: FDA140203
• Product Type: Circuit Breaker
• Amperage: 20 A
• Poles: 1
• Voltage: 277V
• Notes: Verify fit by part number and application requirements. Need help matching a part number or confirming compatibility? Message us and we’ll assist.

Why this model matters

• Precise compatibility: The part-number approach helps you avoid mismatches in critical control and power circuits, reducing downtime and rework.
• Industrial-grade reliability: Built for continuous operation in demanding electrical environments, delivering consistent protection for your equipment and personnel.
• Clear identification: Clear labeling and standardized ratings (20 A, 1-Pole, 277V) simplify stock, maintenance planning, and future replacements.

Ideal use cases

• Replacement in existing 277V circuits where a 1-pole, 20A protection device is specified
• Maintenance projects in industrial facilities requiring dependable overcurrent protection
• New installations in compatible panels or distribution systems that match the FDA140203 specifications

How to verify compatibility

Start with the exact part number: FDA140203. Confirm that your application requires a 20-amp, 1-pole device operating at 277V. If you’re unsure, reach out with the part number and your panel model or service requirements—we’ll help verify fit and guide you to a correct match.

Installation and care tips

• Power down the equipment and lockout/tagout before replacing or installing the breaker.
• Ensure the control panel rating and bus structure are compatible with a 277V, 1-Pole configuration.
• Consult a licensed electrician if you’re uncertain about panel compatibility or local electrical codes.