Cut Sheet

V8-T7-2 Volume 8—Sensing Solutions CA08100010E—July 2015 www.eaton.com
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7.0
Current and Voltage Sensors
Introduction
Product Selection Guide
EVT Series VoltageWatch
Voltage Sensors
ECS Series CurrentWatch
AC Current Switches
ECSJ Series CurrentWatch
AC Current Switches
ECS7 Series CurrentWatch
AC Current Switches
Page V8-T7-5
Overview
Eaton’s VoltageWatch™ sensor is a high-
performance, true RMS sensor for sensing
voltage in single- and three-phase
installations.
Applications
Detect below normal or “brown out” voltage
conditions; protect against possible motor
overheating
Identify phase-loss conditions by detecting
voltage reduction in one or more phases of a
three-phase motor
Monitor overvoltage conditions associated
with regenerative voltage to help in
diagnosing/avoiding motor drive issues
Detect voltage conditions that may cause
stress in or damage to soft starter
components (SCRs)
Product Features
True RMS output—allows for use in
situations where power supplied is
non-sinusoidal
Standard 4–20 mA loop powered output—
industry standard output works easily and
reliably with existing controllers
Input/output isolation—input and output
circuitry is electrically isolated for improved
safety
Compact DIN rail mount enclosure— space-
saving 35 mm wide enclosure mounts
quickly for an attractive installation
Vol t age Range
120, 240, 480V
Approvals
UL
®
CE (Pending)
RoHS Compliant
(Pending)
Page V8-T7-8
Overview
AC current switches for detecting
overcurrent condition.
Applications
Electronic proof of flow—current operated
switches eliminate the need for multiple
pipe or duct penetrations and are more
reliable than electro-mechanical pressure or
flow switches
Conveyors—detect jams and overloads
Lighting circuits—easier to install and more
accurate than photocells
Fans, pumps and heating elements—faster
response than temperature sensors
Critical motors
Ancillary equipment
Product Features
Universal outputs—NO or NC solid-state
switch for control circuits up to 240 Vac/dc,
compatible with most automation systems
Self-powered—cuts installation and
operating costs
Easily adjustable setpoint—increases
application flexibly and speeds start-up
Solid- or split-core housings—versions
tailored for each type of installation
LED indication—provides quick visual
indication of contact status
Built-in mounting feet—simple, two-screw
panel mount or attach with optional din-rail
mounting kit accessory
Current Range
Fixed or adjustable set point, 1–150A
Approvals
UL Listed
cUL
®
Listed
cULus
CE
Page V8-T7-11
Overview
Jumper selectable AC switches with
solid-state output.
Applications
Electronic proof of flow—current operated
switches eliminate the need for multiple
pipe or duct penetrations and are more
reliable than electro-mechanical pressure or
flow switches
Conveyors—detect jams and overloads
Lighting circuits—easier to install and more
accurate than photocells
Fans, pumps and heating elements—faster
response than temperature sensors
Critical motors
Ancillary equipment
Product Features
Choice of NO or NC solid-state outputs—
1A at 240 Vac
0.15A at 30 Vdc
15A at 120 Vac
3A at 120 Vac
0.15A at 30 Vdc, dual contact
Self-powered—cuts installation and
operating costs
Easily adjustable setpoint—speeds
start-up and reduces inventory
Solid- or split-core housings—choose the
appropriate version for your application
LED indication—provides quick visual
indication of output contact status
Built-in mounting feet—provide for a secure
installation
Current Range
Adjustable set point, 1.75–200A
Approvals
UL Listed
cUL Listed
cULus
CE
Page V8-T7-15
Overview
Self-calibrating AC current switch with
solid-state outputs.
Applications
Conveyors—use current overload models to
detect conveyor jams caused by scenarios
such as side-by-sides
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
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
Current Range
Self-calibrating set point, 1.5–150A
Approvals
UL Listed
cUL Listed
cULus
CE