ABB S281-K6 U is a two-pole molded case circuit breaker (MCCB) designed for 480 V AC circuits, rated at 6 A per pole with a 10 kA short-circuit current rating. The U variant in the S281-K6 line is a bolt-on, 2‑pole device suitable for installation in electrical panels and feeders where reliable thermal‑magnetic overcurrent protection is required. As part of ABB’s S280 family, it provides protection for medium‑duty distribution and machine‑control circuits, delivering clear interruption capability and coordination within panelboard assemblies.
