Over/Under Current SensingOver/Under Current Sensing
Over/Under Current Sensing
Over/Under Current SensingOver/Under Current Sensing
ECS Series
Current Sensor
DescriptionDescription
Description
DescriptionDescription
The ECS Series of Single Phase AC Current Sensors is a universal, overcurrent or undercurrent sensing
control. Its built-in toroidal sensor eliminates the inconvenience of installing a stand-alone current transformer.
Includes onboard adjustments for current sensing mode, trip point, and trip delay. Detects over or under
current events like locked rotor, loss of load, an open heater or lamp load, or proves an operation is taking place
or has ended.
Toroidal Through Hole Wiring
0.5...50 A Trip Point
Adjustable or Factory Fixed
Trip Delays
10 A SPDT Isolated Output
Contacts
5% Trip Point Hysteresis
(Dead Band)
Approvals:
OperationOperation
Operation
OperationOperation
Input voltage must be supplied at all times for proper
operation. When a fault is sensed throughout the trip
delay , the output r elay is energized. When the current
returns to the normal run condition, the output and the
delay are reset. If a fault is sensed and then corrected
before the trip delay is completed, the relay will not
energize and the trip delay is reset to zero.
AdjustmentAdjustment
Adjustment
AdjustmentAdjustment
Select the desired function, over or under current
sensing. Set the trip point and trip delay to
approximate settings. Apply power to the ECS and
the monitored load. Turn adjustment and watch the
LED. LED will light; turn slightly in opposite direction
until LED is off. Adjustment can be done while
connected to the control circuitry if the trip delay is set
at maximum.
ConnectionConnection
Connection
ConnectionConnection
FunctionFunction
Function
FunctionFunction
Overcurrent
Undercurrent
TP = T rip Point R = Reset OC = Monitored Curr ent
NO = Normally Open Contact NC = Normally
Closed Contact A = Sensing Delay On Start Up
TD = Trip Delay
AccessoriesAccessories
Accessories
AccessoriesAccessories
Female quick connect
P/Ns:
P1015-13 P1015-13
P1015-13
(AWG 10/12)
P1015-13 P1015-13
P1015-64P1015-64
P1015-64
(AWG 14/16)
P1015-64P1015-64
P1015-14 P1015-14
P1015-14
(AWG 18/22)
P1015-14 P1015-14
See accessory pages for
specifications.
Relay contacts are isolated.
Dashed lines are internal connections.
V = Voltage I> = Overcurrent I< = Undercurrent
W = Insulated Wire Carrying Monitored Current
OrOr
dering Tdering T
Or
dering T
OrOr
dering Tdering T
XX
X
XX
SeriesSeries
Series
SeriesSeries
ECSECS
–
ECS -(selectable over or
ECSECS
under current sensing)
ECSH ECSH
–
ECSH -(overcurrent sensing)
ECSH ECSH
ECSLECSL
–
ECSL - (undercurrent sensing)
ECSLECSL
Example P/N:Example P/N:
Example P/N:
Example P/N:Example P/N:
ableable
able
ableable
ECS41AC ECS41AC
ECS41AC Fixed –
ECS41AC ECS41AC
XX
X
XX
InputInput
Input
InputInput
11
–
1 - 12 V DC
11
22
–
2 - 24 V AC
22
33
–
3 - 24 V DC
33
44
–
4 - 120 V AC
44
66
–
6 - 230 V AC
66
ECSH610AD ECSH610AD
ECSH610AD
ECSH610AD ECSH610AD
XX
X
XX
T T
T
T T
Fixed Specify
in 1 A increments
Adjustable RangesAdjustable Ranges
Adjustable Ranges
Adjustable RangesAdjustable Ranges
00
–
0 - 0.5 ... 5 A
00
11
–
1 - 2 ... 20 A
11
H H
–
H - 5 ... 50 A
H H
rip Pointrip Point
rip Point
rip Pointrip Point
2 2
2 ...
2 2
50 50
50 A
50 50
XX
X
XX
TT
rip Delayrip Delay
T
rip Delay
TT
rip Delayrip Delay
F F
–
F - Factory Fixed:
F F
Specify
Adjustable RangesAdjustable Ranges
Adjustable Ranges
Adjustable RangesAdjustable Ranges
AA
–
A - 0.150 ... 7 s
AA
BB
–
B - 0.5 ... 50 s
BB
Low Voltage Products & Systems8.4
.08 .08
.08 ...
.08 .08
5050
50 s
5050
XX
X
XX
Sensing DelaySensing Delay
Sensing Delay
Sensing DelaySensing Delay
on Start up on Start up
on Start up
on Start up on Start up
BlankBlank
–
Blank - 0 s
BlankBlank
CC
–
C - 1 s
CC
DD
–
D - 2 s
DD
EE
–
E - 3 s
EE
FF
–
F - 4 s
FF
GG
–
G - 5 s
GG
HH
–
H - 6 s
HH
ECS02B01 12.28.04
Over/Under Current SensingOver/Under Current Sensing
Over/Under Current Sensing
Over/Under Current SensingOver/Under Current Sensing
ECS Series
Current Sensor
Technical Data Technical Data
Technical Data
Technical Data Technical Data
SensorSensor
Sensor
SensorSensor
Type Toroidal, through hole wiring
Mo de Over or under current, switch selectable on the unit or factory fixed
Trip Point Range 0.5 ... 50 A in 3 adjustable ranges or fixed
Tolerance: Adjustable Guaranteed range
Fixed 0.5 ... 25 A: 0.5 A or +/-5% whichever is less; 26 ... 50 A: +/-2.5%
Maximum Allowable Current
Trip Point Hysteresis ≅ +/-5%
Trip Point vs. Temperature +/- 5%
Response Time ≤ 75 ms
Frequency 45 ... 500 Hz
Type of Detection Peak detection
TT
rip Delayrip Delay
T
rip Delay
TT
rip Delayrip Delay
Type Analog
Range: Adjustable 0.150 ... 7 s; 0.5 ... 50 s (Guaranteed ranges)
Factory Fixed 0.08 ... 50 s (+/-10%)
Delay vs. Temperature +/-15%
Sensing Delay on Startup Factory fixed 0 ... 6 s: +40% ... 0%
InputInput
Input
InputInput
Voltage 24 , 120, or 230 V AC; 12 or 24 V DC
Tolerance 12 V DC & 24 V DC/AC -15% ... +20%
120 & 230 V AC -20% ... +10%
Line Frequency 50 ... 60 Hz
OutputOutput
Output
OutputOutput
Type Electromechanical relay
Form Isolated single pole double throw (SPDT)
Rating 10 A resistive at 240 V AC; 1/4 hp at 125 V AC; 1/2 hp at 250 V AC
Life Mechanical – 1 x 106 ; Electrical – 1 x 10
ProtectionProtection
Protection
ProtectionProtection
Circuitry Encapsulated
Isolation Voltage ≥ 2500 V RMS input to output
Insulation Resistance ≥ 100
MechanicalMechanical
Mechanical
MechanicalMechanical
Mounting Surface mount with two #6 (M3.5 x 0.6) screws
Termination
Humidity 95% relative, non-condensing
Operating/Storage Temperature -40°C ... +60°C / -40°C ... +85°C
Weight ≅ 6.4 oz (181 g)
Steady – 50 A turns; Inrush – 300 A turns for 10 s
5
MΩ
0.25 in. (6.35 mm) male quick connect terminals (5)
Mechanical View Mechanical View
Mechanical View
Mechanical View Mechanical View
Multiple TMultiple T
Multiple T
Multiple TMultiple T
T o incr ease sensitivity , multiple turns may be made through the ECS's toroidal
sensor. The trip point range is divided by the number of turns through the
toroidal sensor to create a new range.
Using an ExterUsing an Exter
Using an Exter
Using an ExterUsing an Exter
Select a 2 VA, 0 to 5 A output CT, rated for the current to be monitored. Select
ECS02B01 12.28.04
ECS adjustment range 0. Pass the CT's secondary wire lead through the
ECS's toroid and connect both ends together.
Low Voltage Products & Systems 8.5
urur
ur
urur
ns Tns T
ns T
ns Tns T
o Incro Incr
o Incr
o Incro Incr
nal Currnal Curr
nal Curr
nal Currnal Curr
ease Sensitivityease Sensitivity
ease Sensitivity
ease Sensitivityease Sensitivity
ent Tent T
ransformer (CT)ransformer (CT)
ent T
ransformer (CT)
ent Tent T
ransformer (CT)ransformer (CT)
Inches (Millimeters)
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