84892299
84892299 Datasheet
EWS / EWS2 phase sequence and loss of phase EWS Part number 84892299
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84892299 |
84892299 (pdf) |
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| 22/10/2012 EWS / EWS2 phase sequence and loss of phase EWS Part number 84892299 Space savings, accurate measurement and optimized functions all improve the efficiency of your electrical installation. Control You simply install your EWS phase control relay and without any adjustment you can monitor the loss or inversion of one of the phases. Safety The EWs range enables you to choose the level of safety for your installation by using versions with 1, 2 or 3 output changeovers. Self-powered Simple to install, EWS control relays use the controlled mains supply for their own power supply voltage. Part numbers Type 84 892 299 EWS 84 873 004 EWS2 Specifications Operating range Operating range Frequency Maximum consumption Output relay Type of contacts Nominal rating Maximum breaking voltage Max. voltage Nominal breaking capacity Min. breaking current Electrical life number of operations Maximum rate at full load Mechanical life operations Pick-up delay T1 Turn-off delay T2 Connection capacity - without ferrule Connection capacity - with ferrule Max. tightening torque Operating temperature range oC Storage temperature 0C Housing material Protection IEC 60529 - Casing Protection IEC 60529 - Term. block Dielectric strength IEC 60255-5 Insulation coordination IEC/EN 60664-1 Weight g Principles Output relay 1 changeover 2 changeovers 3 AC V 50 / 60 Hz +/- 1 Hz 25 VA No cadmium 8A 250 V AC 440 V AC 2000 VA 10 mA / 5 V AC 12 105 at 8A/250 VAC 360 operations / hour 2 x 107 200 ms 300 ms in the event of phase failure 2 x 2,5 mm2 1 x 4 mm2 2 x 1,5 mm2 1 Nm screw M3 / IEC 947-1 -30 Self-extinguishing IP40 IP20 2,5 KV / 1 mn / 1 mA / 50 Hz Overvoltage category III, degree of pollution 3 110 Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 22/10/2012 Operating principle EWS/EWS2 relays monitor the correct sequencing of phases L1, L2 and L3 as well as the loss of one of these phases. When the phase sequence is correct, the output relay is energised, indicated by a yellow LED. The relay de-energises LED off if one of the following faults occurs Incorrect sequence of phases at terminals L1, L2 and L3 Total loss of one phase or all three phases loss of phase detection threshold < 50 VAC Legend Phase L1 Phase L2 Phase L3 Relay Dimensions mm EWS / EWS2 Connections EWS Connections EWS Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 22/10/2012 Legend Isolating switch Contactor Alarm Auxiliary power supply for contactor coil and signalling Connections EWS Monitoring of three-phase motor. Manual re-engage after disappearance of the fault. Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected 22/10/2012 Surveillance moteur triphasé Réenclenchement manuel après disparition du défaut. defecto Legend Isolating switch Contactor Alarm Auxiliary power supply for contactor coil and signalling Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected |
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