3RA2416-8XH31-1BB4 .
The 3RA24 contactor assemblies for star-delta (wye-delta) starting in sizes S00 to S3 can be ordered as follows:
The 3RA24 contactor assemblies for star-delta (wye-delta) starting have screw or spring-type terminals and are suitable for screw and snap-on mounting onto TH 35 standard mounting rails. A base plate is also available for the size S2 and S3 assemblies. A dead interval of 50 ms on reversing is already integrated in the 3RA28 function module for star-delta (wye-delta) starting. With the fully wired and tested 3RA24 contactor assemblies for star-delta (wye-delta) starting, the auxiliary contacts included in the basic units are unassigned. The 3RA24 contactor assemblies for star-delta (wye-delta) starting are designed for standard applications. Note: Contactor assemblies for star-delta (wye-delta) starting in special applications such as very heavy starting1) or star-delta (wye-delta) starting of special motors must be customized. Help with designing such special applications is available from our Technical Assistance, 1) For effective support from Technical Assistance you must provide the following details: Surge suppressionSurge suppression (varistor) is included in the function modules for star-delta (wye-delta) starting. Motor protectionFor motor protection, 3RU2 or 3RB3 overload relays for contactor mounting or stand-alone installation (see "Protection Equipment"), SIMOCODE pro 3UF7 motor management and control devices (see "Monitoring and Control Devices") or 3RN thermistor motor protection evaluation units (see "Monitoring and Control Devices" → "Relays") can be used. The overload relay can be either mounted onto the line contactor or separately fitted. It must be set to 0.58 times the rated motor current. SIRIUS 3RA28 function module for star-delta (wye-delta) startingThe 3RA2816-0EW20 function module replaces the complete wiring in the control circuit and can be used in the voltage range from 24 to 240 V AC/DC. It is snapped onto the front of the contactor assembly for star-delta (wye-delta) starting, size S00, S0, S2 or S3. One function module comprises a complete module kit:
The scope of supply thus comprises a complete module kit for one contactor assembly for star-delta (wye-delta) starting size S00, S0, S2 or S3, regardless of the connection method. Data of the control circuit:
Complete unitsNote: The selection of contactor types refers to fused designs.
Article No. scheme
Note: The Article No. scheme shows an overview of product versions for better understanding of the logic behind the article numbers. For your orders please use the article numbers quoted in the selection and ordering data. Fully wired and tested contactor assemblies for star-delta (wye-delta) starting · Size S00-S00-S00 · Up to 11 kWThe figure shows the version with screw terminals Complete contactor assemblies for star-delta (wye-delta) starting, see Ordering data. Fully wired and tested contactor assemblies for star-delta (wye-delta) starting · Size S0-S0-S0 · Up to 22 kWThe figure shows the version with screw terminals Complete contactor assemblies for star-delta (wye-delta) starting, see Ordering data. Fully wired and tested contactor assemblies for star-delta (wye-delta) starting · Size S2-S2-S01) · Up to 45 kW and S2-S2-S2 · 55 kWThe figure shows the version with screw terminals in S2-S2-S2 Complete contactor assemblies for star-delta (wye-delta) starting, see Ordering data. Fully wired and tested contactor assemblies for star-delta (wye-delta) starting · Size S3-S3-S2 · Up to 90 kWComplete contactor assemblies for star-delta (wye-delta) starting, see Ordering data. |
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