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ABB MOTOR PROTECTION AND CONTROL 3/257
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UA50 … UA75 3-pole contactors for capacitor switching
33 to 50 kvar - Peak current Î ≤ 100 times the rms current
AC operated
UA contactors can be used for the switching of capacitor banks whose inrush current peaks are
less than or equal to 100 times nominal rms current. 03
The capacitors must be discharged (maximum residual voltage at terminals ≤ 50 V) before being
re-energized when the contactors are making.
These contactors are of the block type design with:
1SBC580783F0303 • 3 main poles
• control circuit: AC operated
• add-on auxiliary contact blocks for front or side mounting and a wide range of accessories.
IEC UL/CSA Rated control circuit Auxiliary Type Order code Weight
UA50-30-00
Rated Max Rated voltage contacts
operational peak operational Uc fitted Pkg
power current power (1) (1 pce)
θ ≤ 40 °C θ ≤ 40 °C
400 V 480 V
AC-6b Î
kvar kA kvar V 50 Hz V 60 Hz kg
33 5 40 24 24 0 0 UA50-30-00 1SBL351022R8100 1.160
48 48 0 0 UA50-30-00 1SBL351022R8300 1.160
110 110…120 0 0 UA50-30-00 1SBL351022R8400 1.160
220…230 230…240 0 0 UA50-30-00 1SBL351022R8000 1.160
230…240 240…260 0 0 UA50-30-00 1SBL351022R8800 1.160
380…400 400…415 0 0 UA50-30-00 1SBL351022R8500 1.160
400…415 415…440 0 0 UA50-30-00 1SBL351022R8600 1.160
45 6.5 - 24 24 0 0 UA63-30-00 1SBL371022R8100 1.160
48 48 0 0 UA63-30-00 1SBL371022R8300 1.160
110 110…120 0 0 UA63-30-00 1SBL371022R8400 1.160
220…230 230…240 0 0 UA63-30-00 1SBL371022R8000 1.160
230…240 240…260 0 0 UA63-30-00 1SBL371022R8800 1.160
380…400 400…415 0 0 UA63-30-00 1SBL371022R8500 1.160
400…415 415…440 0 0 UA63-30-00 1SBL371022R8600 1.160
50 7.5 55 24 24 0 0 UA75-30-00 1SBL411022R8100 1.160
48 48 0 0 UA75-30-00 1SBL411022R8300 1.160
110 110…120 0 0 UA75-30-00 1SBL411022R8400 1.160
220…230 230…240 0 0 UA75-30-00 1SBL411022R8000 1.160
230…240 240…260 0 0 UA75-30-00 1SBL411022R8800 1.160
380…400 400…415 0 0 UA75-30-00 1SBL411022R8500 1.160
400…415 415…440 0 0 UA75-30-00 1SBL411022R8600 1.160
(1) Other control voltages see voltage code table.
35 mm x15 EN/IEC 60715 6 0.24" 108 4.25" 6.5 0.26"
110 4.33" 0.16"
4
75 mm EN/IEC 60715
70 2.76" 10 0.39" 10 0.39"
UA50, UA63, UA75
Main dimensions mm, inches
