ABB S203-C3 3A 3-Pole 480 V Circuit Breaker Potential Transformer

ABB S203-C3 3A 3-Pole 480 V Circuit Breaker Potential Transformer is a rugged three‑phase protective device designed for reliable overload and short‑circuit protection in industrial power systems. With a 3 A nominal current rating, a 3‑pole configuration, and a 480 V maximum rating, this ABB unit is built to safeguard downstream equipment in demanding environments and fit neatly into standard control panels and distribution boards.

• Current rating: 3 A
• Pole count: 3 (three‑phase)
• Voltage rating: up to 480 V
• Part Number: S203-C3
• Brand and origin: ABB

The S203-C3 shines in applications where balanced phase protection is critical. Its three‑pole design ensures synchronized protection across all phases, reducing the risk of damage from imbalanced faults. This makes it particularly well suited for industrial power networks, motor control centers, and distribution panels that operate at 480 V.

Why choose the ABB S203-C3 in your protection scheme? Beyond its solid construction, this unit integrates smoothly with systems that rely on potential transformers for sensing and metering. It provides reliable overcurrent protection while supporting accurate monitoring in protection and measurement architectures. The result is enhanced equipment longevity, reduced maintenance surprises, and greater confidence in system safety.

Ideal use scenarios include:

• Three‑phase feeders in manufacturing lines powered by 480 V networks
• Motor control centers requiring robust 3‑pole protection
• Protection and metering interfaces that utilize potential transformers

Compared to simpler or single‑pole devices, the ABB S203-C3 delivers coordinated, multi‑phase protection, helping you prevent cascading faults and minimize downtime. Its sourcing simplicity—thanks to a clear part number and compatible 3‑pole design—helps maintenance teams keep spare parts on hand and installations moving smoothly.

In short, the ABB S203-C3 3A 3-Pole 480 V Circuit Breaker is a purpose‑built solution for reliable three‑phase protection in industrial environments, with particular value in systems that leverage potential transformers for protection and measurement. Use it to shield equipment, improve safety, and maintain uninterrupted operation in demanding 480 V applications.