General
Rated control supply voltage Us at AC 50HZ	240
Rated control supply voltage Us at AC 60HZ	260
Voltage type for actuating	AC
Number of auxiliary contacts as normally open contact	0
Number of auxiliary contacts as normally closed contact	0
Type of electrical connection of main circuit	Other
Number of main contacts as normally open contact	3
Number of normally closed contacts as main contact	0
Rated blind power at 400 V, 50 Hz	80
Depth	155.6
Height	170
Operating voltage at AC 50 Hz	1000
Operating voltage at AC 60 Hz	1000
Width	90

UA110...RA: 3-pole contactors for capacitor switching can be used in systems where the peak current is much higher than 100 times the rated effective current. The contactors are supplied complete with their damping resistors and must be used without additional inductors. Their electrical life is 250,000 operations at Ue < 500 V and 100,000 operations at 500 V = Ue = 690 V. The UA..RA contactors are equipped with a special front block that ensures the serial insertion of three damping resistors in the circuit to limit the current peak when the capacitor bank is excited. Their connection also ensures the pre-charging of the capacitors in order to limit the second current peak when the main poles are switched on. The use of resistors makes it possible to dampen the highest current peak of the capacitor when switched on, regardless of its magnitude. The 3-pole contactors of the UA...RA series are designed in block construction.

• Main poles: 3 main poles
• Control circuit: AC operated with laminated magnetic circuit