Description:Current Monitor Relays • Type: Overcurrent • Coil Voltage: 24 VAC • Contact Configuration: 2C DPDT • Mounting: 11 Pin Plug-in • Current Range Monitored: 0.5 - 5 Amps • Current Settings: Pick-up: Adjustable throughout current range monitored Drop-out: Fixed at 95% of pick-up setting (COP Series); or Adjustable from 50-95% of pick-up setting (COKP Series) • Drop-Out Setting: Adjustable (From 50-95% of Pick-Up) • Indicator LED: Green when Input Voltage is applied; Red Flashing when in time delay; and Red Steady when Relay is energized.
Pick-up: Adjustable throughout current range monitored Drop-out: Fixed at 95% of pick-up setting (COP Series); or Adjustable from 50-95% of pick-up setting (COKP Series)
Drop-Out Setting
Adjustable (From 50-95% of Pick-Up)
Indicator LED
Green when Input Voltage is applied; Red Flashing when in time delay; and Red Steady when Relay is energized.
Input Voltage Tolerance
AC Operation: +10/-15% of nominal at 50/60 Hz.
Life
Mechanical: 10,000,000 operations, Full Load: 100,000 operations
Load (Burden)
Less than 5VA
Mounting Needs
Requires an 8 or Plug-in 11 Pin Round socket--see page 16 of Catalog.
Output Contacts
10A Resistive @ 240V AC/30V DC, 1/2HP @ 240V AC (N.O.), 1/3HP @ 240V AC (N.C.)
Pick-up Setting
Adjustable
Reset
Automatic. Contact Macromatic for information on a product with a latching function--the relay remains energized even after the current drops below the dropout setting until a remote N.C. button is opened.
Series Description:The CO Series is used to detect an overcurrent condition. The pick-up current setting is user-adjustable within one of three ranges as shown in the Product Selection Table below. An external current transformer can be used to extend the range beyond 10 amperes.
Choose between a fixed drop-out current setting at 95% of the selected pick-up setting or an adjustable drop-out setting of 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 trip- ping caused by inrush currents. It will de-energize when the monitored AC current is below the drop-out setting.
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 Setting with Fixed Drop-out Setting
Adjustable time delay of 0.1-10 seconds on pick-up
LED indicates output relay status
Choice of compact 8 Pin SPDT or 11 Pin DPDT plug-in case
