Macromatic COKP Series Catalog Page
current sensing relays | plug-in
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
Uses industry-standard 8 pin
octal socket
10A SPDT output contacts
with appropriate socket
AC OVERCURRENT
COKP Series
Current sensing relays can be used in several applications where protection of sensitive or expensive equipment against over or under current conditions is required,
such as detecting (sensing) conveyor jam-up conditions, machine tool wear, no load
conditions or monitoring status of heater or lamp loads.
The COKP 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
of these products. 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.
PICK-UP
SETTING
Adjustable
(Across
Monitored
Range)
DROP-OUT
SETTING
Adjustable
(From
50-95% of
Pick-Up)
INPUT
VOLTAGE
24V AC 0.1 - 1A
120V AC 0.1 - 1A
CURRENT
RANGE
MONITORED
0.5 - 5A
1 - 10A
0.5 - 5A
1 - 10A
CATALOG
NUMBER
COKP01A68
COKP05A68
COKP10A68
COKP01A62
COKP05A62
COKP10A62
WIRING/
SOCKET
8 Pin
70169-D
DIAGRAM 21
Sockets & Accessories available
4
| |
Application data
Dimensions
AC OVERCURRENT
COKP Series
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
Drop-out: Adjustable from 50-95% of pick-up setting
Response Times:
Pick-up: Adjustable 0.1-10 seconds
Drop-out: Fixed 100ms
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: Operating: -28o to 65oC (-18o to 149o F)
Storage: -40o to 85oC (-40o to 185oF)
Indicator LED: Green when Input Voltage is applied; Red
when Relay is energized
Reset: Automatic
Mounting:
Requires 8 pin octal socket (Macromatic 70169-D or
equivalent)
Approvals:
File #E109466
File #E109466
current sensing relays | plug-in
All Dimensions in
Inches (Millimeters)
5
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