Page 326 - ABB_Motor _Protection_and_Control_catalogue_20221216

3/250 ABB MOTOR PROTECTION AND CONTROL

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UA16..RA … UA30..RA 3-pole contactors for capacitor switching

12.5 to 30 kvar - Unlimited peak current Î
AC operated

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
03
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 when the contactors are making.
1SBC587794F0301 • 3 main poles and 1 built-in auxiliary contact
These contactors are of the block type design with:
• the UA..RA contactors are fitted with a special front-mounted block, which ensures the serial in-
sertion of 3 damping resistors into the circuit to limit the current peak on energization of the ca-
pacitor bank
- their connection also ensures capacitor precharging in order to limit the second current peak
occurring upon making of the main poles
UA16-30-10RA
- 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.
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
1SBC587774F0301 kvar kvar V 50 Hz V 60 Hz 1 0 UA16-30-10RA 1SBL181024R8110 kg
0.460
24
12.5
16
24
110
220…230 110…120 1 0 UA16-30-10RA 1SBL181024R8410 0.460
230…240
1 0
1SBL181024R8010
UA16-30-10RA
0.460
230…240 240…260 1 0 UA16-30-10RA 1SBL181024R8810 0.460
380…400 400…415 1 0 UA16-30-10RA 1SBL181024R8510 0.460
UA30-30-10RA 400…415 415…440 1 0 UA16-30-10RA 1SBL181024R8610 0.460
22 22 24 24 1 0 UA26-30-10RA 1SBL241024R8110 0.710
110 110…120 1 0 UA26-30-10RA 1SBL241024R8410 0.710
220…230 230…240 1 0 UA26-30-10RA 1SBL241024R8010 0.710
230…240 240…260 1 0 UA26-30-10RA 1SBL241024R8810 0.710
380…400 400…415 1 0 UA26-30-10RA 1SBL241024R8510 0.710
400…415 415…440 1 0 UA26-30-10RA 1SBL241024R8610 0.710
30 28 24 24 1 0 UA30-30-10RA 1SBL281024R8110 0.810
110 110…120 1 0 UA30-30-10RA 1SBL281024R8410 0.810
220…230 230…240 1 0 UA30-30-10RA 1SBL281024R8010 0.810
230…240 240…260 1 0 UA30-30-10RA 1SBL281024R8810 0.810
380…400 400…415 1 0 UA30-30-10RA 1SBL281024R8510 0.810
400…415 415…440 1 0 UA30-30-10RA 1SBL281024R8610 0.810
(1) Other control voltages see voltage code table.

126.3 4.97" 141 5.55"
87.3 3.44" 102 4.02"
107 4.21"
68 2.68"
9 0.35" 9 0.35"
5.5 0.22"
74 2.91" 35 mm EN/IEC 60715 47 1.85" +.394" +10 120 4.72" 90 3.54" 35 mm EN/IEC 60715 47 1.85" +10 120 4.72" +.394" 90 3.54" 35 mm EN/IEC 60715 47 1.85" +10 130 5.12" +.394"

4 0.16" 4 0.16" 4 0.16"
54 2.13"
44 1.73" 54 2.13"
UA16..RA UA26..RA UA30..RA
Main dimensions mm, inches