ABB S273-K20 - 20A, 3-Pole, Circuit Breaker

Introducing the ABB S273-K20 — a dependable 20A, 3-Pole Circuit Breaker designed for demanding electrical environments. This ABB device delivers robust overcurrent protection for three-phase systems, making it ideal for panelboards, switchboards, and control panels in industrial, commercial, and OEM applications.

• Three-pole configuration provides true three-phase protection across all phases in 3P electrical networks
• 20A current rating affords precise protection for motors, drives, and shared feeders without unnecessary nuisance trips
• Rugged construction built to withstand the rigors of industrial use while maintaining safe, reliable operation
• Designed for straightforward installation and seamless integration into standard panel layouts and instrumentation
• Trusted ABB engineering and performance, delivering long service life in distribution panels and motor control centers

Why it matters in real-world deployments

In a motor control center or distribution panel, the ABB S273-K20 acts as a first line of defense against overloads and short circuits. By interrupting fault currents quickly and predictably, it helps protect expensive motors, drives, and control circuits, reducing downtime and maintenance costs. Its 3-pole design ensures that all phases are protected in tandem, which is essential for balanced, reliable operation of three-phase equipment.

Ideal use cases and who benefits most

• Manufacturing lines and process equipment that rely on three-phase motors and controlled feeders
• Industrial and commercial panels where dependable overcurrent protection is a must
• OEM assemblies requiring compact, reliable protection in motor control centers and distribution enclosures

Installation and compatibility tips

The ABB S273-K20 is tailored for use in standard distribution and control panel environments. For best results, mount in appropriate panel spaces, connect conductors according to project wiring practices, and follow ABB installation guidelines to ensure safe, reliable operation and easy future maintenance.

Choose the ABB S273-K20 for consistent, three-phase protection that keeps systems running smoothly. It’s a practical, durable solution for any setup where dependable overcurrent protection and safe operation are non-negotiable.