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To open:

Press tab inward
towards hinge

Important: 

Keep contact areas clean

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

ECS701SC

Solid Core, N.O., Over/Under Load

ECS700SC

Solid Core, N.O., Overload Only

ECS702SC

Solid Core, N.O., Underload Only

ECS711SP

Split Core, N.O., Over/Under Load

ECS710SP

Split Core, N.O., Overload Only

ECS712SP

Split Core, N.O., Underload Only

INTRODUCTION

The CurrentWatch™ ECS7 Series current
switches are designed for overload,
underload or operating window applications.
Upon sensing an average operating current,
the ECS7 Series self-learns and establishes a
limit-alarm trip point based on plus or minus
15 percent of the average expected current
being monitored. The ECS7 Series is available 
in solid or split core housing styles.

The ECS7 Series magnetically isolated solid state output contacts are 
rated for 0.30A @ 135V AC/DC. This “universal” output makes this 
product especially well suited for PLC control systems or a variety of 
load connections.

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 technology in your control systems.

Note: Unless otherwise specifi ed, the term “load” refers to the 
current being monitored.

Installation Instructions

CurrentWatch™ ECS7 Series Current Switches

Self-Calibrating AC Current Switch with Solid State Outputs

INSTALLATION 

Considerations for all ECS7 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 a wire 

with a wire tie.

•  Be sure to leave at least one inch distance between sensor and 

other magnetic devices. 

Considerations for split-core models only…

•  Press the tab in the direction 

shown in the diagram to the right.

•  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 split-core contact areas 

clean. Silicon grease is factory applied on the mating surfaces to 
prevent rust and improve performance. Be careful not to allow 
grit or dirt into the grease in the contact area, particularly on core 
mating surfaces of split core models. Sensor operation could be 
impaired if mating surfaces do not have good contact. Check 
visually before closing.

QUICK INSTALL GUIDE

The below steps can be followed to quickly install a CurrentWatch™ 
ECS7 Series switch.

1.  Run the wire to be monitored through the aperture
2.  Mount the sensor
3.  Connect output wire to the solid state relay terminals

a.  Use up to 14 AWG copper wires
b.  Don’t exceed output rating

4.  Slide the Function Switch from “CLR” to “RUN”
5.  Turn load “on”, equipment is now energized and sensor is 

calibrated

•  Note: Refer to the LED Indication table on page two for switch 

operation.

WIRING DIAGRAM

Connect control or monitoring wires to the sensor. Use up to 14 AWG 
copper wire and tighten terminals to 7 inch-pounds torque. Be sure the 
output load does not exceed the solid state output rating. 

CAUTION! Incandescent lamps can have “cold fi lament inrush” 
current of up to ten times their rated amperage. Use caution when 
switching lamps.

P51922

 Rev 04

Effective: April 2010

Page 1

WARNING

Questions? Call our Sensor Application Engineers at (800) 426-9184.

695000107

AC or DC 

Electrical Equipment Load

AC or DC

Power

Monitored

Wire

Use caution when

switching lamps

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