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
ECSTD401SC
AC, Solid Core, N.O., 1.5-12, 12-55 or 50-175A Setpoints
ECSTD402SC
AC, Solid Core, N.C., 1.5-12, 12-55 or 50-175A Setpoints
ECSTD404SP
AC, Split Core, N.O., 2-12, 12-55 or 50-200A Setpoints
ECSTD405SP
AC, Split Core, N.C., 2-12, 12-55 or 50-200A Setpoints
ECSTD406SC
AC/DC, Solid Core, N.O., 1.5-12, 12-55 or 50-175A Setpoints
ECSTD407SC
AC/DC, Solid Core, N.C., 1.5-12, 12-55 or 50-175A Setpoints
ECSTD408SP
AC/DC, Split Core, N.O., 2-12, 12-55 or 50-200A Setpoints
ECSTD409SP
AC/DC, Split Core, N.C., 2-12, 12-55 or 50-200A Setpoints
INTRODUCTION
The CurrentWatch™ ECSTD
Series are a family of high
performance current-operated
switches with fi eld-adjustable
time delay to help minimize
nuisance trips during start-up
and operation. Designed for
motor status applications where
setpoint accuracy and repeatability are critical, the ECSTD Series offers
a linear setpoint characteristic and constant hysteresis.
Standard features include self-powering, jumper-selectable ranges and
a choice of outputs and housing styles cases. Models are available
which provide N.O. or N.C. AC contacts or solid-state N.O. or N.C.
“universal” contact outputs which can switch AC or DC. Contact action
can be delayed for up to 15 seconds by using the Time Delay Adjust
potentiometer.
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.
To open:
Press tab inward
towards hinge
Important:
Keep contact areas clean
INSTALLATION
Considerations for all ECSTD 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 below to open the sensor.
• 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™
ECSTD Series switch.
1. Run the wire to be monitored through the aperture
2. Mount the sensor
3. Connect output wiring
a. Use up to 14 AWG copper wires
b. Ensure load matches the output shown on the switch label
4. Adjust the setpoint
a. Choose correct range by positioning the range jumper
(removed for low, across two appropriate pins for medium, or
high)
b. Use the potentiometer to adjust the setpoint
P51921
Rev 02
Effective: June 2007
Page 1
Installation Instructions
CurrentWatch™ ECSTD Series AC Current Switches with Time Delay
WARNING
Questions? Call our Sensor Application Engineers at (800) 426-9184.
394000109
