ABB AC Type Contactor Three Pole UA30-30-10RA

Product Description

• A30..RA 3-pole contactors for capacitor switching, can be used in installations in which the peak current far exceeds 100 times nominal rms current

• The contactors are delivered complete with their damping resistors and must be used without additional inductances (see table below). The capacitors must be discharged (maximum residual voltage at terminals ≤ 50 V) before being re-energized when the contactors are making

• Their electrical durability is 250 000 operating cycles for Ue < 500 V and 100 000 operating cycles for 500 V ≤ Ue ≤ 690 V

• The UA..RA contactors are fitted with a special front mounted block, which ensures the serial insertion of 3 damping resistors into the circuit to limit the current peak on energization of the capacitor bank

• Their connection also ensures capacitor precharging in order to limit the second current peak occurring upon making of the main poles

• The insertion of resistors allows to damp the highest current peak of the capacitor when switching on, whatever its level

• The UA..RA series 3-pole contactors are of the block type design

• Main poles and auxiliary contacts: 3 main poles, 1 built-in auxiliary contact

• Control circuit: AC operated with laminated magnet circuit

• Number of Main Contacts NO : 3

• Number of Main Contacts NC : 0

• Number of Auxiliary Contacts NO : 1

• Number of Auxiliary Contacts NC : 0

• Rated Operational Voltage : Main Circuit 690 V , Auxiliary Circuit 690 V

• Short-Circuit Protective Devices : Auxiliary Circuit - gG Type Fuses 10 A , gG Type Fuses 200 A

• Rated Impulse Withstand Voltage (U_imp) : 8 kV

• Terminal Type : Screw Terminals

• Product Net Width : 54 mm

• Product Net Depth / Length : 141 mm

• Product Net Height : 130 mm

• Product Net Weight : 0.81 kg

Product Specification

Rated Voltage	Product Id	Type
24V	1SBL281024R8110	UA30-30-10RA Coil
110V 50Hz / 110-120V 60Hz	1SBL281024R8410	UA30-30-10RA Coil
220-230V 50Hz / 230-240V 60Hz	1SBL281024R8010	UA30-30-10RA Coil
400-415V 50Hz / 415-440V 60Hz	1SBL281024R8610	UA30-30-10RA Coil