ABB SU203 - 63A, 240VAC / 96VDC, 3-Pole, Circuit Breaker

The ABB SU203 is a durable 63A, 3-pole circuit breaker engineered for reliable overcurrent protection in demanding electrical environments. With a voltage rating of 240VAC and 96VDC, it delivers versatile protection for both AC distribution and DC circuits within a single device, simplifying panel design and maintenance.

Key specifications

• Current rating: 63A
• Voltage rating: 240VAC / 96VDC
• Poles: 3-Pole
• Breaker type: Circuit Breaker
• Configuration: Suitable for panelboards, switchboards, and control panels in industrial, commercial, and OEM applications

Where it shines

• Industrial panel setups: Protect motor drives, conveyors, and power distribution in manufacturing lines with a single, integrated protection device.
• Commercial electrical rooms: Reliable protection for three-phase distribution in switchboards and control panels, reducing downtime and equipment wear.
• OEM equipment: A versatile protection solution for machinery and systems that combine AC and DC circuit requirements up to 63A.

Why this matters

• Versatility for mixed systems: The ability to protect both 240VAC and 96VDC circuits means fewer parts and simpler wiring in complex installations.
• Focused protection for three-phase loads: A 3-pole design ensures coordinated protection across all phases, helping prevent uneven fault conditions and equipment damage.
• Operational reliability: Built for industrial-grade use, it provides dependable overcurrent protection, contributing to safer startup, steady operation, and easier maintenance in distribution panels and motor control centers.

Practical considerations

When selecting the ABB SU203, ensure your application matches its ratings: up to 63A continuous current, 240VAC or 96VDC operation, and a 3-pole configuration for three-phase or mixed-load circuits. This breaker is well-suited for modern distribution panels, control panel assemblies, and motor control centers where robust protection and compact, reliable performance are essential.

With the ABB SU203, you gain a trusted, purpose-built solution that aligns with demanding industrial, commercial, and OEM needs—providing clear, dependable protection that helps you keep systems running smoothly.