Overload Only Models
Amps
Output Open
(LED Off)
Output Closed
(LED Slow)
115% of Calibration Point
Calibration Point
(LED Fast)
Ranges and Maximum Amps
Housing
Range
Maximum Amps
Continuous 6 sec.
1 sec.
Solid Core
1.5-150 A
500 A
500 A
1,000 A
Split Core
2.8-150 A
500 A
500 A
1,000 A
Troubleshooting
Problem
Solution
Switch is
always
tripped.
Switch may have been overloaded and contacts are burned out.
Check the output load, remembering to include inrush on inductive
loads (coils, motors).
Switch will
not trip.
For split core models, the core contact area may be dirty. Open the
sensor and clean the contact area.
Switch may have been overloaded and contacts are burned out.
Check the output load, remembering to include inrush on inductive
loads (coils, motors).
Make sure function switch is in “RUN” mode.
Specifications
Specification
Value
Power Supply
Self Powered–No Power Supply Needed
Output
Magnetically Isolated Solid State Switch
Output Rating
Normally Open (N.O.) Models: 0.30 A @ 135 VAC/DC
Off-State Leakage
< 10 µA
Response Time
200 ms
Setpoint
Overload Only Models: +15% of Load
Underload Only Models: -15% of Load
Over/Underload Models: ±15% of Load (Operating
Window)
Setpoint Ranges
Solid Core: 1.5-150 A
Split Core: 2.8-150 A
Hysteresis
Approx. 5% of Setpoint
Isolation Voltage
UL Listed to 1,270 VAC, Tested to 5,000 VAC
Frequency Range
6-100 Hz
Sensing Aperture
Solid Core Models: 0.75 in. (19 mm) dia.
Split Core Models: 0.85 in. (21.7 mm) sq.
Housing
UL94 V0 Flammability Rated
Environmental
Operating Temperature: -4 to 122°F (-20 to +50°C)
Humidity: 0-95% RH, Non-Condensing
Approvals
UL Listed, E117028
UL tested to Canadian safety standards
CE
RoHs Compliant
Over/Underload Models
Amps
Output Open
Output Open
(LED Off)
Output Closed
(LED Slow)
115% of Calibration Point
(LED Fast)
85% ofCalibration Point
(LED Slow)
Current Switch Operation
Model
Output Diagram
Underload Only Models
Amps
Output Open
(LED Off)
Output Closed
(LED Slow)
Output Open
(LED Fast)
Calibration Point
3
EATON
www.eaton.com
Instructions Publication
P51922
Effective July 2017
CurrentWatch™ ECS7 Series Current Switches
Self-Calibrating AC Current Switches
with Solid State Outputs
