Description
| AC-6b contactors for capbank application | |||
| AC-6b rating 12.5kVar ~ 60kVar contactors LC1D lK are designed for switching 3-phase, single or multiple- step capacitor banks; they conform to standards IEC 70 and 831, NFC 54-100, VDE 0560, UL and CSA. |
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| Operating conditions | |||
| There is no need to use choke inductors for either single or multiple-step capacitor banks. Short-circuit protection must be provided by gG type fuses rated at 1.7…2 In. |
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| Prospective peak current at switch-on |
Reference | 200 In | |
| Maximum operating rate |
LC1-DFK, DGK, DLK, DMK, DPK LC1-DTK, DWK |
240 operating cycles/hour. 100 operating cycles/hour. |
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| Electrical durability at rated load |
All contactor rating | 400 V 690V |
300 000 operating cycles. 200 000 operating cycles. |
Direct connection without choke inductor
| Operational power at 50/60 Hz (θ less than 55 °C) (2) 400 V 440 V |
Instantan. auxiliary contacts |
Tightening torque on cable end |
Basic reference. Complete with code indicating control circuit voltage (1) |
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| kVAR | N/O | N/C | N.m | |
| 12.5 16.7 21 27 32 43 67 |
1 1 1 1 1 1 1 |
2 2 2 2 2 2 2 |
1.2 1.7 1.9 2.5 5 5 9 |
LC1DFK●● LC1DGK●● LC1DLK●● LC1DMK●● LC1DPK●● LC1DTK●● LC1DWK12●● |
| Using standard (AC1) contactor LC1D and LC1F | |||||
| The selections below are made based on safety factor of 1.3 and 1.1 for harmonic effects and capacitor tolerence. It is strongly recommended to insert choke inductors when switching on multi-stepped capacitor banks |
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| Operational power at 50/60 Hz (θ less than 55 °C) (2) |
Instantan. auxiliary contacts |
Basic reference. Complete with code indicating control circuit voltage (1) |
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| AC1 Amps |
400 V 440 V kVAR |
max peak current Amps |
N/O | N/C | |
| 25 | 5 11 |
560 560 |
1 1 |
1 1 |
LC1D09●● LC1D12●● |
| 32 40 50 60 |
15 20 25 30 |
850 1600 1900 2160 |
1 1 1 1 |
1 1 1 1 |
LC1D18●● LC1D25●● LC1D32●● LC1D40A●● |
| 80 | 35 40 |
2160 2160 |
1 1 |
1 1 |
LC1D50A●● LC1D50A●● |
| 125 | 45 50 60 |
3040 3040 3040 |
1 1 1 |
1 1 1 |
LC1D80●● LC1D80●● LC1D80●● |
| 200 | 75 85 |
3100 3300 |
1 1 |
1 1 |
LC1D1156●● LC1D1506●● |
| 275 315 350 |
100 110 125 |
3500 4000 5000 |
2 2 2 |
2 2 2 |
LC1G185●● LC1G225●● LC1G265●● |
| Switching of multiple-step capacitor banks (with equal or different power ratings). | |||||
| The correct contactor for each step is selected from the above table, according to the power rating of the step to be switched. Example: 50 kVAR 3-step capacitor bank. Temperature: 50 oC and U = 400 V or 440 V. One 25 kVAR step: contactor LC1-DMK, one 15 kVAR step: contactor LC1-DGK and one 10 kVAR step: contactor LC1-DFK. (1) Standard control circuit voltages |
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| Volts | 220 | 230 | |||
| 50/60Hz | M7 | P7 | |||
Other voltages between 24 and 440 V, please consult our local representatives or agents.
(2) The average temperature over a 24-hour period, in accordance with IEC 70 and 831 is 45ºC.
