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 pickup 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 tripping caused by inrush currents. It will de-energize when the monitored AC current is below the drop-out setting. | |  |
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Features: - Monitors AC single phase 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 either Fixed or
Adjustable 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
- 10A output contacts
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| Part Number | Pick-Up Setting | Drop-Out Setting | Input Voltage | Current Range Monitored | Wiring |
 COP01A68 | Adjustable (Across Monitored Range) | Fixed (At 95% of Pick-Up) | 24V AC | 0.1-1A |  |
|
COP05A68 | 0.5-5A |
|
COP10A68 | 1-10A |
|
COP01A62 | 120V AC | 0.1-1A |
|
COP05A62 | 0.5-5A |
|
COP10A62 | 1-10A |
|
COKP01A68 | Adjustable (Across Monitored Range) | Adjustable (From 50-95% of Pick-Up) | 24V AC | 0.1-1A |
|
COKP05A68 | 0.5-5A |
|
COKP10A68 | 1-10A |
|
COKP01A62 | 120V AC | 0.1-1A |
|
COKP05A62 | 0.5-5A |
|
COKP10A62 | 1-10A |
| Part Number | Pick-Up Setting | Drop-Out Setting | Input Voltage | Current Range Monitored | Wiring |
|
COP01A28 | Adjustable (Across Monitored Range) | Fixed (At 95% of Pick-Up) | 24V AC | 0.1-1A |  |
|
COP05A28 | 0.5-5A |
|
COP10A28 | 1-10A |
|
COP01A22 | 120V AC | 0.1-1A |
|
COP05A22 | 0.5-5A |
|
COP10A22 | 1-10A |
|
COKP01A28 | Adjustable (Across Monitored Range) | Adjustable (From 50-95% of Pick-Up) | 24V AC | 0.1-1A |
|
COKP05A28 | 0.5-5A |
|
COKP10A28 | 1-10A |
|
COKP01A22 | 120V AC | 0.1-1A |
|
COKP05A22 | 0.5-5A |
|
COKP10A22 | 1-10A |
| Input Voltage Tolerance: | AC Operation: +10/-15% of nominal at 50/60 Hz. |
| Load (Burden): | Less than 5VA |
| Current Settings (Pick-Up): | Adjustable throughout current range monitored |
| Current Settings (Drop-Out): | Fixed at 95% of pick-up setting (COP Series); or Adjustable from 50-95% of pick-up setting (COKP Series) |
| Response Times: | Pick-Up: Adjustable 0.1-10 seconds
Drop-Out: Fixed 100ms |
| Output Contacts: | 10A @ 240V AC/30V DC, 1/2HP @ 120/240V AC (N.O.), 1/3HP @ 120/240V AC (N.C.) |
| Life: | Mechanical: 10,000,000 operations
Full Load: 100,000 operations |
| Temperature: | -28° to 55°C (-18° to 131°F) |
| Indicator LED: | Green when Input Voltage is applied; Red when Relay is energized |
| Reset: | Automatic |
| Mounting: | Requires an 8 or 11 pin octal socket |
