
10
Three-phase electronic contactors Type ECI-3
General
Type
ECI 10-3
ECI 20-3
Product description
ECI Electronic contactors are designed for applications demanding fast and precise switching.
The contactors utilize SCR power chips with new LTE (Low Thermal Expansion) technology. This unique power
chip design ensures high switching capacity and long life. The contactors are burst fired for reduced EMC emission,
have LED status indicators and accept universal control voltages. The units are DIN-rail mountable, complete with
heat sink and require no additional components.
Typical applications
ECI electronic contactors are designed for fast and demanding switching of loads such as heaters, solenoids,
transformers and motors
Design standard
IEC/EN 60947-4-3
Approvals
CE, CSA and NRTL/C
Output specifications
Operational current,
AC-1, AC-51 (heater load)
10 A
20 A
AC-3, AC-53a (motor load)
10 A
Operational voltage, 3 phase
24 - 230 V a.c.
(50/60 Hz)
24 - 480 V a.c.
24 - 600 V a.c.
Leakage current max.
1 mA
Minimum operational current
10 mA
Semiconductor protection fusing
type 1 co-ordination
35 A gL/gG
type 2 co-ordination
450 A
2S
450 A
2S
Thermal specifications
and environment
Power dissipation,
continuous duty
3 W/A
Power dissipation,
intermittent duty
3 W/A
× duty cycle
Ambient temperature range
-5 to 40 °C
Cooling method
Natural convection
Mounting
Vertical (see also general mounting instructions)
Max. ambient temperature
with limited current
60 °C, see derating for high temperatures in chart below
Storage temperature range
-20 to 80 °C
Protection degree/pollution
degree
IP 20/3
Insulation specifications
Rated insulation voltage, Ui
660 V
Rated impulse withstand
voltage, Uimp
4 kV
Installation category
III
Control specifications
Control voltage (+/- 10%)
5 - 24 V d.c. / 24 - 230 V a.c./d.c.
Pick-up voltage
4.25 V d.c. / 20.4 V a.c./d.c.
Drop-out voltage
1.5 V d.c. / 7.2 V a.c./d.c.
Control current/power max.
15 mA at 4 V d.c. / 1.5 VA/6 mA at 24 V d.c.
Response time max.
1/2 cycle / 1 cycle
EMC immunity
Meets requirements of EN 50082-1 and EN 50082-2
Features
SCR power chip with LTE technology
Compact modular design complete
with heat sink
DIN-rail mountable
Built-in varistor protection
Operational current up to 20 A (AC-1)
Line voltage up 600 V a.c.
Universal control voltage
Burst firing (zero cross)
LED status indicator
IP 20 protection
Problem-free specification according
to industry standard
Easy and quick installation