IN ORDER TO AVOID ELECTRIC SHOCK OR OTHER POSSIBLE INJURY:
• DO NOT USE THIS PRODUCT FOR HUMAN SAFETY APPLICATIONS.
IT WAS NOT DESIGNED, TESTED OR RECOMMENDED FOR THIS
USE.
• DO NOT USE THIS PRODUCT IN HAZARDOUS LOCATIONS (E.G.
EXPLOSIVE ATMOSPHERES). IT WAS NOT DESIGNED, TESTED OR
RECOMMENDED FOR THIS USE.
• ENSURE THE PRODUCT IS PROPERLY WIRED FOR THE
APPLICATION. REFER TO THE SPECIFICATIONS AND WIRING
DIAGRAMS IN THIS MANUAL.
MODELS COVERED IN THIS MANUAL
Catalog Number
Description
ECSNOASC
Self-Powered, Solid Core, N.O., Adjustable Setpoint (1-150A), LED
ECSNOFSC
Self-Powered, Solid Core, N.O., Fixed Setpoint (1.0A), No LED
ECSNCASC
Self-Powered, Solid Core, N.C., Adjustable Setpoint (1-150A), LED
ECSNCFSC
Self-Powered, Solid Core, N.C., Fixed Setpoint (1.0A), No LED
ECSNOASP
Self-Powered, Split Core, N.O., Adjustable Setpoint (1.75-150A), LED
ECSNOFSP
Self-Powered, Split Core, N.O., Fixed Setpoint (1.5A), No LED
ECSNCASP
Self-Powered, Split Core, N.C., Adjustable Setpoint (1.75-150A), LED
ECSNCFSP
Self-Powered, Split Core, N.C., Fixed Setpoint (1.5A), No LED
INTRODUCTION
The Cutler-Hammer
CurrentWatch™ ECS Series are
a family of self-powered, solid-
state current-operated switches
which trigger when the current
level sensed through the
aperture exceeds the adjusted
setpoint. The solid-state output contacts can
switch AC or DC, making the ECS Series well
suited for applications in automation systems.
Eaton’s current sensor family encompasses a broad range of products
for cost-effective monitoring, status, and predictive maintenance.
Downtime and costly repairs can be avoided by utilizing Eaton’s
products and technologies in your control systems.
Installation Instructions
CurrentWatch™ ECS Series Current Switch
AC Current Switch, Fixed or Adjustable Setpoint
INSTALLATION
Considerations for all ECS Series models…
• Run wire to be monitored through the aperture (opening) in the
switch body
• These switches can be located in the same environment as
motors, contactors, heaters, pull-boxes and other electrical
enclosures
• Mounting can be done in any position or hung directly on wires
with a wire tie
Considerations for split core versions (-SP suffi x)…
• To open the switch, press the tab inward (toward the body of the
switch) as shown below
• After placing the wire in the aperture, press the hinged portion
fi rmly downward until a click is heard and the tab pops out fully
• Keep the contact areas of split-core switches clean at all times
QUICK INSTALL GUIDE
The below steps can be followed to quickly install a CurrentWatch™
ECS Series switch.
1. Run the wire to be monitored through the aperture
2. Mount the switch
3. Connect output wiring
a. Use up to 14 AWG copper wires
b. Use caution not to exceed solid state output rating (see
specifi cation table on following page)
3. Adjust the setpoint
a. Use the potentiometer to adjust the setpoint
LED
/
OUTPUT STATUS TABLE
Monitored Amps
Output
Smart-LED
(If Present)
N.C.
N.O.
None or Minimum
Closed
Open
Off
Below Trip Level
Closed
Open
Slow (2 sec.)
Above Trip Level
Open
Closed
Fast (0.5 sec.)
P51916
Rev 02
Effective: January 2008
Page 1
WARNING
Questions? Call our Sensor Application Engineers at (800) 426-9184.
To open:
Press tab inward
towards hinge
Important:
Keep contact areas clean
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