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UA50..RA … UA75..RA  3-pole contactors for capacitor switching

         40 to 60 kvar - Unlimited peak current Î
         AC operated



                                    Description
                                    UA..RA contactors for capacitor switching can be used for installations in which the peak current far
                                    exceeds 100 times nominal rms current. The contactors are delivered complete with their damping resistors
                                    and must be used without additional inductances.
                                    The capacitors must be discharged (maximum residual voltage at terminals ≤ 50 V) before being re-energized
                            1SBC587764F0301  when the contactors are making.
                                    These contactors are of the block type design with:
                                       – 3 main poles
                                       – the UA..RA contactors are fitted with a special front-mounted block, which ensures the serial insertion of 3
                                      damping resistors into the circuit to limit the current peak on energization of the capacitor bank
                                        -  their connection also ensures capacitor precharging in order to limit the second current peak occurring
                                       upon making of the main poles
         UA75-30-00 RA
                                        -  the insertion of resistors allows to damp the highest current peak of the capacitor when switching on,
                                       whatever its level.
                                       – control circuit: AC operated
                                       – add-on auxiliary contact blocks for side mounting and a wide range of accessories.  5
                                    Ordering details
                                    IEC        UL/CSA      Rated control circuit  Auxiliary  Type   Order code  Weight
                                    Rated operational  Rated operational   voltage  contacts
                                    power      power       Uc            fitted                               Pkg
                                    θ ≤ 40 °C  θ ≤ 40 °C   (1)                                                (1 pce)
                                    400 V      480 V
                                    AC-6b
                                    kvar       kvar        V 50 Hz  V 60 Hz                                   kg
                                    40         50          24     24      0  0  UA50-30-00RA  1SBL351024R8100  1.350
                                                           110    110…120  0  0  UA50-30-00RA  1SBL351024R8400  1.350
                                                           220…230  230…240  0  0  UA50-30-00RA  1SBL351024R8000  1.350
                                                           230…240  240…260  0  0  UA50-30-00RA  1SBL351024R8800  1.350
                                                           380…400  400…415  0  0  UA50-30-00RA  1SBL351024R8500  1.350
                                                           400…415  415…440  0  0  UA50-30-00RA  1SBL351024R8600  1.350
                                    50         55          24     24      0  0  UA63-30-00RA  1SBL371024R8100  1.350
                                                           110    110…120  0  0  UA63-30-00RA  1SBL371024R8400  1.350
                                                           220…230  230…240  0  0  UA63-30-00RA  1SBL371024R8000  1.350
                                                           230…240  240…260  0  0  UA63-30-00RA  1SBL371024R8800  1.350
                                                           380…400  400…415  0  0  UA63-30-00RA  1SBL371024R8500  1.350
                                                           400…415  415…440  0  0  UA63-30-00RA  1SBL371024R8600  1.350
                                    60         64          24     24      0  0  UA75-30-00RA  1SBL411024R8100  1.350
                                                           110    110…120  0  0  UA75-30-00RA  1SBL411024R8400  1.350
                                                           220…230  230…240  0  0  UA75-30-00RA  1SBL411024R8000  1.350
                                                           230…240  240…260  0  0  UA75-30-00RA  1SBL411024R8800  1.350
                                                           380…400  400…415  0  0  UA75-30-00RA  1SBL411024R8500  1.350
                                                           400…415  415…440  0  0  UA75-30-00RA  1SBL411024R8600  1.350
                                    (1) Other control voltages see voltage code table.










                                    Main dimensions mm, inches
                                                          140.4  5.53"
                                                   35 mm x 15 EN/IEC 60715  10  0.39"
                                                         101.5  4"


                                                                      +10"
                                     110  4.33"  114  4.49"  4  0.16"  47  1.85"  +10 150         5.91"
                                                   75 mm EN/IEC 60715  6  0.24"                                     1SBC101508S0201 - Rev. A




                                         70  2.76"
                                    UA50..RA, UA63..RA, UA75..RA

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