Contactors

By the type of application the contactors of the R series can be both normally closed (NC) and normally opened (NO).
The contactors of the R series, with a different number of pole contacts and their shape (contactors with NC + NO contacts), are used to control power circuits: up to 1000 V alternating-current (AC) and 1500 V direct-current (DC). These contactors are completed from standard components, which makes it possible to promptly develop the devices according to the customer's order.
The contactorsof the R series are designed for heavy-duty service, in the fields where application of standard equipment is limited.
The bus contactors of the R series are made in accordance with the standard IEC 60947. They include a full line of modular contactors:

• for switching currents from 60 to 5000A;
• for switching currents at the voltage of up to 1000 V (for alternating current) and up to 1500 V (for direct current).

The product design allows:

• combining NO and NC contactors in one device;
• controlling power circuits with different types of current (alternating and direct current) in one device;
• adjusting various combinations of micro-switches (auxiliary contacts) for viewing the contactor operation on control panels and signalling equipment.

The contactors of the R series comply with special requirements for controlling electrical equipment of up to 5000 A with additional requirements for ensuring improved reliability while distributing electrical energy for the majority of fields of application:

• hydroelectric power plants, solar power engineering facilities;
• charging stations and batteries;
• mining industry;
• railwayequipmentand rolling stock;
• induction furnaces;
• pumping stations;
• bridge cranes.

The contactors are tailor-made upon the customer's request.