Page 1
Self-Powered Units — No
Power Supply Needed
Bright LED Indicator
Split-Core Models for Easy
Installation and Maintenance
Jumper-Selectable Input Ranges
to Consolidate Inventory
September 2009
ECSJ Series Current Switch
CurrentWatch Current Sensors
Contents
Overview . . . . . . . . . . . . . . . . . . . . 1
Model Selection,
Switches . . . . . . . . . . . . . . . . . . . . 2
Model Selection,
Accessories . . . . . . . . . . . . . . . . . 3
Wiring Diagrams . . . . . . . . . . . . . . 3
Specifications . . . . . . . . . . . . . . . . 4
Dimensions . . . . . . . . . . . . . . . . . . 5
The CurrentWatch ECSJ Series current operated switches from Eaton’s
electrical business provide the same
dependable indication of status
offered by the CurrentWatch ECS
Series, but with the added benefit of
increased setpoint precision. A
choice of three, jumper-selectable
input ranges allows the ECSJ Series
to be tailored to an application, providing more precise control through
improved setpoint resolution. Selfpowering, isolated solid-state outputs, 1 – 6A, 6 – 40A and 40 – 200A
input ranges, and a choice of split- or
solid-core enclosures are standard.
For typical applications of the CurrentWatch ECSJ Series, see listing to the
right.
Approvals
UL Listed
■
C-UL Listed
■
Unless otherwise noted, the
products contained in this
document are not designed
or intended for use in human
safety applications.
CurrentWatch™ Current Sensors
ECSJ Series Current Switch
CA05311001E
Jumper Selectable AC Switches with Solid-State Output
Product Features
■
Choice of N.O. or N.C. Solid-State Outputs —
– 1A @ 240V AC
– 0.15A @ 30V DC
– 15A @ 120V AC
– 3A @ 120V AC
– 0.15A @ 30V DC, 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
■
■
UL, C-UL and CE Approved — Accepted worldwide
Typical Applications
■
Electronic Proof of Flow — Current operated switches eliminate the need
for multiple pipe or duct penetrations and are more reliable than electromechanical 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
■
1
CA05311001E For more information visit: www.eaton.com
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 .
Page 2
CurrentWatch™ Current Sensors
2
ECSJ Series Current Switch
Example Application — CurrentWatch ECSJ Series
Pump Jam & Suction Loss Protection
September 2009
PLC
Motor
Control
Signal
Motor
Starter
B/I Card
Digital
Input
Current Switch
Model Selection — CurrentWatch ECSJ Series
Power Supply Aperture Size Output Type, Voltage and Rating Setpoint and LED Configuration Catalog Number
Front and Top Terminal Switches
Solid-Core Housings with Front
Terminals
Solid-Core Housings with Top
Terminals
Self-Powered (No
External Power
Needed)
Overload Setpoint
AMPS
Normal Operation
0.55 in. (14 mm) Normally Open, 1A @ 240V AC Adjustable 1 – 6, 6 – 40 or 40 – 175A
0.74 in. (19 mm) Normally Open, 3A @ 120V AC Adjustable 1 – 6, 6 – 40 or 40 – 175A
Jam
Motor
Off
Tim e
Setpoint with LED
Normally Open, 15A @ 120V AC,
10A @ 240V AC
Normally Closed, 1A @ 240V AC Adjustable 1 – 6, 6 – 40 or 40 – 175A
Normally Closed, 15A @ 120V AC,
10A @ 240V AC
Dual Contact, N.O. and N.C.,
0.15A @ 30V DC
Normally Open, 0.15A @ 30V DC Adjustable 1 – 6, 6 – 40 or 40 – 175A
Normally Closed, 0.15A @ 30V DC Adjustable 1 – 6, 6 – 40 or 40 – 175A
Adjustable 1 – 6, 6 – 40 or 40 – 175A
Setpoint with LED
Setpoint with LED
Adjustable 1 – 6, 6 – 40 or 40 – 175A
Setpoint with LED
Adjustable 1 – 6, 6 – 40 or 40 – 175A
Setpoint without LED
Setpoint with LED
Adjustable 1 – 6, 6 – 40 or 40 – 175A
Setpoint without LED
Setpoint with LED
Setpoint with LED
ECSJ400SC
ECSJ406SC
ECSJ401SC
ECSJ407SC
ECSJ430SC
ECSJ420SC
ECSJ424SC
ECSJ421SC
ECSJ404SC
Normally Closed, 3A @ 120V AC Adjustable 1 – 6, 6 – 40 or 40 – 175A
Split-Core Housings
Stocked product, typical order quantities guaranteed in stock.
Unit features built-in heatsink that adds to height. See dimension drawings on Pg. 5 for details.
0.85 in. (21.6 mm) Normally Open, 1A @ 240V AC Adjustable 1.75 – 6, 6 – 40 or 40 – 200A
Normally Closed, 1A @ 240V AC Adjustable 1.75 – 6, 6 – 40 or 40 – 200A
Normally Open, 0.15A @ 30V DC Adjustable 1.75 – 6, 6 – 40 or 40 – 200A
Normally Closed, 0.15A @ 30V DC Adjustable 1.75 – 6, 6 – 40 or 40 – 200A
For more information visit: www.eaton.com
Setpoint with LED
ECSJ405SC
ECSJ402SP
Setpoint with LED
ECSJ403SP
Setpoint with LED
ECSJ422SP
Setpoint with LED
ECSJ423SP
Setpoint with LED
CA05311001E
Page 3
September 2009
Accessories — CurrentWatch ECSJ Series
Description Catalog Number
DIN Rail Mounting Kit (Sensor pictured
for reference and not included in kit)
Stocked product, typical order quantities guaranteed in stock.
Wiring Diagrams — CurrentWatch ECSJ Series
Models Wiring Diagram
All Normally Open (N.O.) Models
Setpoint
CurrentWatch™ Current Sensors
ECSJ Series Current Switch
EDINKIT
Range Jumper
None
LOW MID HIGH
Output
R
SmartLED
3
All Normally Closed (N.C.) Models
ECSJ430SC
(Dual Contact, N.O. and N.C.)
Terminals are #6 screws.
DC contacts are polarity sensitive.
Setpoint
Setpoint
Range Jumper
None
LOW MID HIGH
Range Jumper
None
LOW MID HIGH
Output
Output
R
SmartLED
R
SmartLED
CA05311001E For more information visit: www.eaton.com
Page 4
CurrentWatch™ Current Sensors
4
ECSJ Series Current Switch
Specifications — CurrentWatch ECSJ Series
Description AC Solid-State Output DC Solid-State Output
Power Supply Self-Powered — No Power Supply Needed
Output Isolated Solid-State Switch
Output Rating Standard Models:
Off-State Leakage N.O. Models: < 10 µA
Response Time 40 – 120 mS
Setpoint Range
(Adjustable)
Hysteresis Low: 6%; Mid: 4%; High: 3%
Overload
Isolation Voltage UL Listed to 1,270V AC, tested to 5,000V AC
Frequency Range 6 – 100 Hz
Sensing Aperture Solid-Core, Front Terminal Models: 0.55 in. (14 mm)
Housing UL94 V0 Flammability Rated
Environmental Operating Temperature: -58 to 122°F (-50 to 50°C)
Approvals UL 508 Industrial Control Equipment (USA and Canada), CE Certified
1.0A @ 240V AC
High Current Switching Models:
ECSJ404SC and ECSJ405SC: 3.0A @ 120V AC
Very High Current Switching Models:
ECSJ406SC and ECSJ407SC:
15A @ 120V AC
10A @ 240V AC
N.C. Models: 2.5 mA
Solid-Core Models: 1 – 6, 6 – 40 and 40 – 175A
Split-Core Models: 1.75 – 6, 6 – 40 and 40 – 200A
Housing Range Maximum Amps
Solid-Core 1 – 6 A 400 A 600 A
6 – 40 A 500 A 800 A
40 – 175 A 800 A 1200 A
Split-Core 1.75 – 6 A 400 A 600 A
6 – 40 A 500 A 800 A
40 – 200 A 800 A 1200 A
Solid-Core, Top Terminal Models: 0.74 in. (19 mm)
Split-Core Models: 0.85 in. (21.6 mm) sq.
Humidity: 0 – 95% RH, Non-condensing
Standard Models:
0.15A @ 30V DC
ECSJ430SC:
0.15A @ 30V DC, Dual Contact,
N.O. and N.C.
N.O. Models: < 10 µA
N.C. Models: 1.4 mA
6 sec. 1 sec.
September 2009
For more information visit: www.eaton.com
CA05311001E
Page 5
CurrentWatch™ Current Sensors
ECSJ Series Current Switch
September 2009
Approximate Dimensions — CurrentWatch ECSJ Series
Description Approximate Dimensions in Inches (mm)
All Solid-Core Models with Front
Terminals Except ECSJ406SC and
ECSJ407SC
0.19
(4.8)
Dia.
2.18
(55.4)
ECSJ406SC and ECSJ407SC
0.19
(4.8)
dia.
(69.9)
2.16
(54.9)
3.30
(83.8)
2.75
2.75
(69.9)
2.16
(54.9)
0.55
(14)
Dia.
0.92 (23.4)
0.92
(23.4)
5
2.49
(63.2)
2.18
(55.4)
0.55
(14.0)
dia.
Heatsink
3.30
(83.8)
CA05311001E For more information visit: www.eaton.com
Page 6
CurrentWatch™ Current Sensors
6
ECSJ Series Current Switch
Approximate Dimensions — CurrentWatch ECSJ Series
Description Approximate Dimensions in Inches (mm)
All Solid-Core Models with Top
Terminals
3.03
(77.0)
September 2009
0.93
(23.6)
All Split-Core Models
(55.4)
1.19
(30.2)
2.25
(57.2)
0.19 Dia.
(4.8)
2.18
2.40
(61.0)
3.50
(88.9)
3.04
(77.2)
3.53
(89.7)
2.40
(61)
0.74 Dia.
(19)
0.19 Dia.
(4.8)
0.85 (21.6)
0.85
(21.6)
For more information visit: www.eaton.com
CA05311001E
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