Contactor for capacitor bank Q=25 DILK25-11(230V50HZ,240V60HZ) 294032

Contactor for capacitor banks – effective reactive power compensation

This three-phase DILK25-11 contactor from Eaton is a key component in reactive power compensation systems, designed to switch capacitor banks. Its task is to improve the power factor (cos φ) in electrical installations, which translates to reduced energy losses and network load. The device is particularly useful in applications with large inductive loads, such as electric motors, transformers and lighting.

Construction and application

This contactor is intended for central compensation installations with peak inrush currents up to 180 times the rated value. The design assumes pre-charging of the capacitors using leading auxiliary contacts and resistance wires, which minimizes the inrush current during switching. This ensures reliable and safe operation of the compensation system. It can be used both in new installations and during the modernization of existing ones.

Key features and benefits

• High efficiency: Rated reactive power of 25 kvar allows for effective compensation of reactive power in medium-sized installations.
• Safe operation: The design taking into account the pre-charging of capacitors limits inrush currents, protecting the contactor and other installation elements from damage.
• Voltage versatility: The ability to operate in both 50 Hz and 60 Hz networks and at a supply voltage from 230 V to 690 V AC ensures a wide range of applications.
• Solid connections: The main contact with screw connection guarantees a secure and durable connection of the wires.
• Contact configuration: It has 3 normally closed main contacts, 1 normally open auxiliary contact and 1 normally closed auxiliary contact, which allows integration with various control and signaling systems.
• Adapted to loads: Rated switching current of 38 A allows operation of loads with significant power demand during start-up.
• Compact dimensions: Dimensions of 45 mm (width) x 135 mm (height) x 138 mm (depth) allow for mounting in limited spaces.

Please remember that electrical installation work should be carried out by a qualified electrician in accordance with applicable standards and safety regulations. Devices with a voltage above 380V/400V require connection by a specialist company.