Three-Phase Electronic Contactors Type ECI-3
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Three-Phase Electronic Contactors Type ECI-3 |
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Features
| SCR power chip with LTE technology | Universal control voltage |
| Compact modular design complete with heat sink | Burst firing ( zero cross ) |
| DIN-rail mountable | LED status indicator |
| Buit-in varistor protection | Problem-free specification according to industry standard |
| Operational current up to 50 A ( AC-1 ) | IP 20 protection |
| Line voltage up to 600 V a.c. | Easy and quick installation |
| 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 chip 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. |
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| Typical applications | ECI electronic contactors are designed for fast and demanding switching of loads such heaters, solenoids, transformers and motors. |
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| Design standard | IEC/EN 60947-4-3 |
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| Approvals | CE, CSA and NRTL/C ( in compliance with UL 508 ) |
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| Output Specifications Operational current |
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| AC-1, AC-51 ( heater load ) | 10 A | 20 A |
| AC-3, AC-53a ( motor load ) | 10 A | 10 A |
| Operational Voltage, 3 phase | 24-230 V a.c. 24-480 V a.c. 24-600 V a.c. |
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| Leakage current max. | 1 mA |
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| Minimum operational current | 10 mA |
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Semiconductor protection fusing |
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| type 1 co-ordination | 35 A gL/gG | 35 gL/gG |
| type 2 co-ordination | 450 A2S1 | 450 A2S |
Thermal specifications and environment |
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| Power dissipation, continuous duty | 3 W/A |
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| Power dissipation, intermitent duty | 3 W/A x duty cycle |
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| Ambient temperature range | -5 to 40 oC |
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| Cooling method | Natural convection |
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| Mounting | Vertical ( see also general mounting instructions ) |
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| Max. ambient temperature with limited current | 60 oC |
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| Storage temperature range | -20 to 80 oC |
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| Protection/pollution degree | IP 20/3 |
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| Insulation specification | ||
| Rated insulation voltage, Ui | 660 V |
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| Rated impulse withstand voltage, Uimp | 4 KV |
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| Insulation category | III |
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| Control specification | ||
| Control voltage ( +/- 10% ) | 5-24 V d.c. / 24-230 V a.c./d.c. |
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| Pick-up voltage | 4.25 V d.c. / 20.4 V a.c. / d.c. |
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| Drop-out voltage | 1.5 V d.c. / 7.2 V a.c. / d.c. |
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| Control current/power max. | 15 mA at 24 V d.c. / 1.5 VA/6mA at 24 V d.c. |
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| Response time max. | 1/2 cycle / 1 cycle |
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| EMC immunity | Meets requirements of EN50082-1 and EN50082-2 |
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1) Contactors designed for 600 V: Max. AC-3 load: 10 A Max. type 2 co-ordination fuse: 450 A2S
| Operational current max. AC-1 | Control voltage | Dimensions | Type | Operational voltage | ||
| 24-230 V a.c. Code # | 24-480 V a.c. Code # | 24-600 V a.c. Code # | ||||
| 10 A | 5-24 V d.c. | 45 mm module | ECI 10-3 | 037N0031 | 037N0033 | 037N0035 |
| 10 A | 24-230 V a.c./d.c | 45 mm module | ECI 10-3 | 037N0025 | 037N0027 | 037N0029 |
| 20 A | 5-24 V d.c. | 90 mm module | ECI 20-3 | 037N0032 | 037N0034 | 037N0036 |
| 20 A | 24-230 V a.c./d.c. | 90 mm module | ECI 20-3 | 037N0026 | 037N0028 | 037N0030 |
Operating at high temperatures
If the contactor is placed inside small cabinets, care must be taken to avoid exceeding the max. ambient temperature. Otherwise the current must be derated according to table.
| Ambinet temperature | ECI 10 | ECI 20 |
| 40 oC | 10.0 A | 20.0 A |
| 50 oC | 8.0 A | 16.0 A |
| 60 oC | 6.5 A | 13.0 A |