ABB UA16-30-10RA 230-240V 50Hz / 240-260V 60Hz Contactor – 1SBL181024R8810
- Product Name : Contactor
- Voltage : 230-240V/240-260V AC
The UA16-30-10RA 230-240V 50Hz / 240-260V 60Hz is a 3-pole contactor designed for capacitor switching, suitable for installations where peak currents exceed 100 times the nominal RMS current. These contactors come equipped with damping resistors and must be used without additional inductances. Before re-energization, capacitors must be discharged to a maximum residual voltage of ≤50V. The electrical durability of these contactors is 250,000 operating cycles for Ue < 500V and 100,000 cycles for 500V ≤ Ue ≤ 690V. The UA..RA contactors feature a front-mounted block that enables the serial insertion of three damping resistors, effectively limiting current peaks during capacitor bank energization. This configuration also ensures capacitor precharging, reducing secondary current peaks when the main poles engage. The resistors help dampen the highest current peaks during switching, regardless of their level. These block-type contactors include three main poles, one built-in auxiliary contact, an AC-operated control circuit with a laminated magnet, and compatibility with a wide range of accessories.
