ABB S-273-K6A Low Voltage Molded Case Circuit Breaker

ABB S273-K6A is a three-pole low-voltage molded-case circuit breaker (MCCB) rated for 6 A and 400 V AC, part of ABB’s S273 family for compact protection in distribution panels and equipment enclosures. This 3-pole device interrupts overloads and short circuits in three-phase circuits, helping to safeguard motors, control circuits, and other loads in industrial and commercial power systems. The S273-K6A variant is designed for 6 A operating currents in 3-phase networks up to 400 V AC, compatible with standard panelboard and enclosure configurations that specify ABB S273 series MCCBs. Built with ABB’s molded-case construction, it offers reliable protection performance within low-voltage distribution schemes that require precise current rating and dependable interruption at typical industrial voltages. Typical use cases include protection of small three-phase distribution circuits in machinery, process equipment, and electrical panels where ABB S273-series devices are specified, delivering predictable trip behavior within common protection schemes.