The pick-up current setting is user-adjustable within the Monitored Current Range below. An external current transformer can be used to extend the range beyond 10 amperes. The drop-out setting is adjustable from 50-95% of the selected pick-up setting. The relay will energize when the monitored AC current is above the pick-up setting for a period longer than the adjustable time delay (t) of 0.1-10 seconds. This delay prevents nuisance tripping caused by inrush currents. It will de-energize when the monitored AC current is below the drop-out setting.
Function Chart
Product Overview
Features:
Monitors AC currents for overcurrent conditions Three separate current monitoring ranges covering 0.1 – 10 amperes External CT can be used to extend ranges Adjustable Pick-up and Drop-out Settings Adjustable time delay of 0.1-10 seconds on pick-up LED indicates output relay status
Voltage Tolerance: AC Operation: +10/-15% of nominal at 50/60 Hz. Load (Burden): Less than 5VA for all voltages. Indicator LED: Green when Input Voltage is applied; Red when Relay is energized. Monitored Current Ranges: 0.1 – 1A. Response Times: Adjustable time delay of 0.1-10 seconds on pick-up; Fixed 100ms on drop-out. Output Contacts: 10A @ 240V AC / 7A @ 28V DC SPDT, 1/4 HP @ 120V AC (N.O.). Life: Mechanical: 10,000,000 operations; Full Load: 100,000 operations. Temperature: -28o to 65o C (-18o to 149o F)
Approvals:
Operations
The COKP Series is used to detect an overcurrent condition. The pick-up current setting is user-adjustable within one of three ranges: 0.1-1A, 0.5-5A, and 1-10A. An external current transformer can be used to extend the range beyond 10 amperes. Plug-In Current Sensing Relays | COP/COKP Series The drop-out setting is adjustable from 50-95% of the selected pick-up setting. The relay will energize when the monitored AC current is above the pick-up setting for a period longer than the adjustable time delay (t) of 0.1-10 seconds. This delay prevents nuisance tripping caused by inrush currents. It will de-energize when the monitored AC current is below the drop-out setting.