Cutler Hammer, Div of Eaton Corp ECS7 Series Current Switches Catalog
CurrentWatch™ Current Sensors
1
ECS7 Series Current Switches
CA05311007E
August 2007
ECS7 Series Current Switch
CurrentWatch Current Sensors
Contents
Overview . . . . . . . . . . . . . . . . . . . . . 1
Model Selection,
Switches . . . . . . . . . . . . . . . . . . . . 2
Model Selection,
Accessories . . . . . . . . . . . . . . . . . . 3
Wiring Diagram . . . . . . . . . . . . . . . 3
Specifications . . . . . . . . . . . . . . . . . 3
Dimensions . . . . . . . . . . . . . . . . . . . 4
The CurrentWatch ECS7 Series load
monitoring switches from Eaton’s
electrical business 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 ± 15% of the average expected
current draw. The ECS7 Series is
available in solid- or split-core housing styles.
For typical applications of the CurrentWatch ECS7 Series, see listing to the
right.
Approvals
UL Listed
■
C-UL Listed
■
Self-Calibrating AC Current Switch with Solid-State Outputs
Smart, Self-Calibrating Sensors
Solid- and Split-Core
with Limit Alarm Trip Points
Models, All Self-Powered
Built-In Mounting Tabs
for Quick Installation
Product Features
Self-Powered and Self-Calibrating — Reduces installation costs
■
■
Status Monitoring, Overload and Operating Window Options — Choose
the operating style that matches your application
Universal Output — AC or DC compatibility with any automation system
■
UL, C-UL and CE Approved — Accepted worldwide
■
Typical Applications
■
Conveyors — Use current overload models to detect conveyor jams
Unless otherwise noted, the
products contained in this
document are not designed
or intended for use in human
safety applications.
caused by scenarios such as
■
Electronic Proof of Flow — More reliable than electro-mechanical pressure
or flow switches, with no need for pipe or duct penetrations
Pump Protection — Provides overload (jams) and underload (suction loss)
■
indication
For more information visit: www.eaton.com
side-by-sides
For Customer Service in the U.S. call 1-877-ETN CARE (386-2273) ,
in Canada call 1-800-268-3578 .
For Application Assistance in the U.S. and Canada
call 1-800-426-9184 .
CA05311007E
August 2007
Model Selection — CurrentWatch ECS7 Series
Power Supply Output Type Aperture Size Intelligent Logic Catalog Number
Front and Top Terminal Switches
Solid-Core Housing
Split-Core Housing
Self-Powered (No
External Power Needed)
CurrentWatch™ Current Sensors
ECS7 Series Current Switches
Normally Open 0.74 in. (19 mm) Over/Underload, 1.5 – 150A
Self-Calibrating
Overload Only, 1.5 – 150A
Self-Calibrating
Underload Only, 1.5 – 150A
Self-Calibrating
0.85 in. (21.6 mm) Over/UnderLoad, 2.8 – 150A
Self-Calibrating
Overload Only, 2.8 – 150A
Self-Calibrating
Underload Only, 2.8 – 150A
Self-Calibrating
ECS701SC
ECS700SC
ECS702SC
ECS711SP
ECS710SP
ECS712SP
2
Output is closed when current is within ± 15% window.
Stocked product, typical order quantities guaranteed in stock.
Current Switch Operation
Model Output Diagram
Underload Only Models
Output Tripped
LOAD
Amps
Output in
“Normal” State
Overload Only Models
Output Tripped
LOAD
Amps
Output in
“Normal” State
Over/Underload Models
Output is closed when current is within ±15% window.
Output in
“Normal” State
LOAD
Amps
Output in
“Normal” State
Setpoint
Setpoint
Overload Setpoint
Output Tripped
Underload Setpoint
CA05311007E For more information visit: www.eaton.com
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