This K8DT-AS3CD is a current sensing relay from Omron's K8DT series. Active on the shelf, no LTB to worry about. It monitors current on AC or DC lines from 10 up to 200 amps — covers small fractional-hp motors up to big chiller compressors in one device. Adjustable time delay from 0.1 to 30 seconds lets you ride through inrush without nuisance trips.
What the ratings mean for fit
Trip range 10–200 A AC/DC adjustable via dial. SPDT relay output breaks 5 A at 250 VAC; supply 24 VAC/DC, DIN rail mount.
Lifecycle & sourcing
Current production from Omron, listed as active with no end-of-life notice.