Allen-Bradley 810-F529627 Inverse Time Relay is a Rockwell Automation Bulletin 810 device that provides inverse-time current protection for AC or DC circuits. The relay is magnetically operated and uses a dashpot-based timing mechanism, so its trip delay shortens as current increases, with the inverse-time characteristics tied to the dashpot’s fluid viscosity. It is typically supplied with a normally closed contact and automatic reset, with options for normally open contacts, hand reset, and bifurcated contacts with a clear cover; trip current and time-delay are adjustable to suit motor feeders, feeders, or other protected loads.
