ABB | S3N-3P-175A | Circuit Breaker | 175A | 3-Pole | 600V | Bolt-On

Meet the ABB S3N-3P-175A Circuit Breaker — a purpose-built protector for three-phase electrical systems up to 600 volts. This bolt-on unit is designed for professional maintenance, retrofit, and replacement projects where precise specifications matter and compatibility is non-negotiable.

Key specifications at a glance

• Amperage: 175 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Mounting: Bolt-On
• Reference: Part number S3N-3P-175A guarantees compatibility with ABB S3N frames

Why this ABB breaker stands out

Unlike generic substitutes, this model aligns with ABB’s S3N family, ensuring seamless fit within compatible enclosures and busbar schemes. The bolt-on design accelerates installation in field conditions, reducing downtime during service windows. The 3-pole configuration provides balanced, three-phase protection, making it a solid choice for motors, distribution feeders, and other 600V circuits that demand reliable trip behavior and straightforward wiring.

Practical use cases

• Retrofit an existing ABB S3N panel or enclosure with a matching 3P, 175A, 600V bolt-on breaker to restore protected operation.
• Replace a failed unit in a 600V three-phase distribution circuit where the S3N-3P-175A rating matches the original specification.
• Implement a compliant protection device in a new or refurbished panel that supports bolt-on installation and ABB S3N-form factor.

Important fit and installation notes

Always confirm fit and ratings before ordering. The part number S3N-3P-175A is the best reference for compatibility. When installing, de-energize the circuit, follow panel manufacturer torque specs, and ensure the enclosure is rated for 600V operation. This ensures safety and reliable operation throughout the life of the system.