ABB S203-D10 Circuit Breaker, 10A, 3-Pole, 440V

The ABB S203-D10 Circuit Breaker is engineered for demanding industrial electrical service, maintenance, and replacement projects. With a 10 A rating, a 3-pole configuration, and a 440 V operating capacity, this device delivers dependable protection for 3-phase power systems in challenging environments.

Designed to integrate smoothly into ABB-compatible panels and equipment, the S203-D10 helps safeguard motors, control circuits, and branch feeders from overloads and short circuits. Use this part number as your compatibility check to ensure the correct fit for your application, and verify that your system requirements align with a 10 A, 440 V, 3-pole protective device.

• Three-pole protection for balanced 3-phase systems — protects all three live conductors simultaneously, helping maintain system stability in industrial layouts.
• 10 A current rating — precisely sized to protect smaller drives, control panels, and auxiliary circuits without nuisance tripping.
• 440 V compatibility — suitable for common industrial distribution networks that operate at higher voltages, improving protection where it’s most needed.
• Robust, industrial-grade construction — built to endure the rigors of maintenance cycles and long-term service in plant environments.
• Exact part number fit — using S203-D10 ensures you’re selecting the intended ABB device for reliable replacement and easier inventory management.
• Clear compatibility guidance — verify fit by part number and application requirements. Need help matching a part number or confirming compatibility? Message us and we'll help.

Ideal for: plant electricians, maintenance technicians, and procurement teams tackling panel upgrades, routine replacements, or new installation projects in industrial facilities. If you’re integrating into a three-phase 440 V system and need a dependable, ABB-backed protective device, the S203-D10 is a precise match that aligns with ABB’s reliability standards.

Compared to generic breakers, this model offers consistent performance within ABB’s ecosystem, with the clarity of a single part number (S203-D10) to streamline ordering, stocking, and troubleshooting. Before installation, confirm your system’s voltage, phase configuration, and load profile to ensure this 3-pole, 10 A, 440 V device provides the protection your equipment requires.