Network choke (inlet) 4%, 3-phase for power 18.5 kW - 22 kW INS 3-45-400

Three-phase network choke – protection of installations and devices

Network (input) choke with a voltage drop of 4%, designed for use in three-phase electrical installations. This device effectively limits inrush currents when switching on receivers, protecting both the installation itself and the devices connected to it. This is particularly important in the case of electric motors, transformers and other devices with high starting power consumption. The INS 3-45-400 choke is designed to work with loads with a power of 18.5 kW to 22 kW.

Construction and application

Network chokes are widely used in control cabinets, switchgear and in direct mounting near powered devices. Their main task is to reduce voltage surges and disturbances in the power supply network, which translates into increased reliability and lifespan of connected receivers. The construction based on a copper winding ensures high efficiency and durability. Vacuum impregnation in class H varnish guarantees resistance to environmental conditions and long-term parameter stability.

Key features and benefits

• Limitation of inrush currents: Protects the electrical installation and devices from the negative effects of sudden current increases during switching on.
• Durable construction: Winding made of copper and impregnation with class H varnish ensure high reliability and long life.
• Wide range of applications: Ideal for use in control cabinets, switchgear and when powering motors, transformers and other high-power devices.
• Compliance with standards: Manufactured in accordance with EN/IEC 61558-2-20 and EN/IEC 60076-6 standards ensures safety of use and compatibility with other elements of the electrical installation.
• 4% voltage drop: Optimal voltage drop minimizes the impact of the choke on the operation of powered devices while providing effective protection against overvoltages.
• Mounting: Mounting with angle brackets facilitates installation and integration with existing electrical infrastructure.
• Protection degree IP00: Designed for mounting inside electrical enclosures, protecting against touch and external factors.

The INS 3-45-400 choke is a solid solution for professionals and users looking for reliable protection of their electrical installations and connected devices. Its technical parameters have been selected to ensure optimal performance and safety in a wide range of industrial and commercial applications.