Allen-Bradley 810-A24A is an inverse-time current relay in Rockwell Automation’s Bulletin 810 family, designed for AC protection schemes that require a time-delayed trip. The unit offers a tripping current adjustment range of 114 to 325 A (the companion 810-B24A covers 102 to 305 A). Coils support AC calibrations up to 600 V, enabling integration with common power systems and current-transformer sensing networks. As part of the legacy 810 series, the 810-A24A provides inverse-time coordination for overload conditions, allowing short-duration overcurrents to pass without tripping while protecting the circuit from sustained overloads.
