Macromatic CO Series Catalog Page
AC OVERCURRENT
CO Series
OBSOLETE PRODUCTS
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 f xed
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 tripping caused by inrush currents. It will de-energize when the monitored AC current
is below the drop-out setting.
SPDT 8 Pin Plug-in
Current
Pick-up Drop-Out Input Range Product Wiring/
Setting Setting Voltage Monitored Number Socket
Adjustable Fixed 24V AC 0.1 - 1A COP01A68 8 Pin
(Across (At 95% of 0.5 - 5A COP05A68 70169-D
Monitored Pick-Up) 1 - 10A COP10A68
Range) 120V AC 0.1 - 1A COP01A62
0.5 - 5A COP05A62
1 - 10A COP10A62
Adjustable Adjustable 24V AC 0.1 - 1A COKP01A68
(Across (From 50-95% 0.5 - 5A COKP05A68
Monitored of Pick-Up) 1 - 10A COKP10A68
Range) 120V AC 0.1 - 1A COKP01A62 DIAGRAM 21
0.5 - 5A COKP05A62
1 - 10A COKP10A62
DPDT 11 Pin Plug-in
Current
Pick-up Drop-Out
Setting Setting Voltage Monitored Number Socket
Adjustable Fixed 24V AC 0.1 - 1A COP01A28 11 Pin
(Across (At 95% of 0.5 - 5A COP05A28 70170D
Monitored Pick-Up) 1 - 10A COP10A28
Range) 120V AC 0.1 - 1A COP01A22
0.5 - 5A COP05A22
1 - 10A COP10A22
Adjustable Adjustable 24V AC 0.1 - 1A COKP01A28
(Across (From 50-95% 0.5 - 5A COKP05A28
Monitored of Pick-Up) 1 - 10A COKP10A28
Range) 120V AC 0.1 - 1A COKP01A22 DIAGRAM 22
0.5 - 5A COKP05A22
1 - 10A COKP10A22
Input Range Product Wiring/
CONTACT MACROMATIC
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 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
10A output contacts
(with appropriate socket)
Sockets & Accessories available
5
AC STANDARD, AC OVERCURRENT & AC UNDERCURRENT
CM, CO & CU Series
OBSOLETE PRODUCTS
Application data
Input Voltage Tolerance:
AC Operation: +10/-15% of nominal at 50/60 Hz.
Load (Burden):
Less than 5VA
Current Settings:
CM & CO Series
Pick-up: Adjustable throughout current range monitored
Drop-out: Fixed at 95% of pick-up setting (CMP & COP Se-
ries); or Adjustable from 50-95% of pick-up setting
(CMKP & COKP Series)
CU Series
Pick-up: Fixed at 5% above adjustable drop-out setting
Drop-out: Adjustable throughout current range monitored
Response Times:
CM Series
Pick-up: Fixed 100ms
Drop-out: Fixed 100ms
CO Series
Pick-up: Adjustable 0.1-10 seconds
Drop-out: Fixed 100ms
CU Series
Pick-up: Fixed 100ms
Drop-out: Adjustable 0.1-10 seconds
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: Operating: -28o to 55oC (-18o to 131o 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 an 8 or 11 pin octal socket
Approvals:
Low Voltage & EMC Directives
CONTACT MACROMATIC
File #E109466
EN60947-1, EN60947-5-1
with
appropriate
socket
File #E109466
current sensing relays | plug-in
Dimensions
2.4 (60)
1.7
(43)
Not on CUP
COKP & CUP
Only
2.9
(74)
3.5
(89)
All dimensions are inches
(millimeters)
7
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