Description
UA16-30-10RA 220-230V 50Hz / 230-240V 60Hz Block Contactor by ABB
The UA16-30-10RA is a 3-pole contactor designed for capacitor switching in installations where peak current significantly exceeds 100 times nominal rms current. These contactors come complete with damping resistors and must be used without additional inductances. Capacitors must be discharged with maximum residual voltage at terminals ≤ 50 V before re-energization when the contactors are making. Electrical durability is 250,000 operating cycles for Ue below 500 V and 100,000 operating cycles for Ue between 500 V and 690 V.
The UA..RA contactors feature a special front-mounted block allowing serial insertion of 3 damping resistors to limit current peaks during capacitor bank energization. This design precharges the capacitor to limit the secondary current peak during main pole making. The resistor insertion effectively damps the highest capacitor current peak at switch-on, regardless of level.
These 3-pole series contactors have a block-type design with 3 main poles and 1 built-in auxiliary contact. Control circuit is AC operated with a laminated magnet circuit. A wide range of accessories is available.
Key technical data:
- Main contacts NO: 3
- Main contacts NC: 0
- Auxiliary contacts NO: 1
- Auxiliary contacts NC: 0
- Number of poles: 3P
- Standards: IEC/EN 60947-1, IEC/EN 60947-4-1
- Rated operational voltage (Auxiliary and Main Circuit): 690 V
- Rated frequency: 50 / 60 Hz (Auxiliary, Control, Main Circuit)
- Thermal current Ith: 16 A (at 40 °C)
- Rated operational current AC-15 (Ie): up to 6 A at lower voltages, lower at higher voltages
- Rated operational current DC-13 (Ie): varies from 6 A at 24 V to 0.55 A at 220-250 V
- Rated operational power AC-6b: up to 22 kvar at 690 V and 40 °C
- Short-circuit protection: gG type fuses 10 A (auxiliary), 80 A (main)
- Thermal withstand current: 140 A for 0.1 s, 100 A for 1 s
- Maximum breaking capacity: 250 A at 440 V, 90 A at 690 V
- Insulation voltage Ui: up to 1000 V (IEC)
- Impulse withstand voltage Uimp: 8 kV
- Electrical durability: up to 250,000 cycles at ≤ 440 V
- Maximum switching frequency: 240 cycles per hour
- Control circuit voltage Uc: 220-230 V at 50 Hz, 230-240 V at 60 Hz
- Coil consumption: holding 8 V·A, pull-in 70-80 V·A depending on frequency
- Power loss: 0.1 W per pole at rated conditions
- Operate times: 4-11 ms de-energize to NO opening, 10-26 ms energize to NO closing
- Mounting on DIN rail TH35-15 or TH35-7.5 acc. to IEC 60715, or by 2x M4 screws
- Connection capacity main circuit: flexible 0.75-2.5 mm², rigid 1-4 mm²
- Degree of protection IP20 for terminals
- Weight: 0.46 kg, Dimensions: Width 4.4 cm, Depth 10.7 cm, Height 12 cm
Environmental conditions: Storage temperature -60 to +80 °C; operating temperature -40 to +55 °C (0.85-1.1 Uc), up to 70 °C (Uc); max altitude 3000 m; pollution degree 3.
Certifications and compliance: CB, CCC, CQC, CE, UKCA, GOST, UL. RoHS and REACH compliant. Conflict minerals report available. Classified under Customs Tariff Code 85364900.
