Power switch with thermal-magnetic trip unit DPX3 160 4P 160A 25kA 420057

Power switch DPX3 – reliable installation protection

The DPX3 160 power switch is an advanced solution designed to protect electrical circuits with a rated current of 160A. The four-pole design combined with a high short-circuit breaking capacity (25kA) guarantees effective protection against overloads and short circuits, minimizing the risk of damage and ensuring user safety. This device is suitable for both commercial and industrial installations, as well as more demanding home applications.

Construction and functionality

The DPX3 160 switch is characterized by a solid construction mounted on a TH rail, which facilitates assembly and disassembly. It has a built-in thermal-magnetic trip unit with an adjustable setting range (128-160A), allowing for precise adjustment to the specifics of the protected circuit. Additionally, the presence of an undervoltage release increases the functionality of the device, reacting to abnormalities in the supply voltage. Auxiliary contacts (1 normally open and 1 changeover) allow integration with external control and signaling systems. The connection of the main circuits is made using screw connections, ensuring a secure and durable connection of the wires. The trip indicator informs about the operation of the protection, making it easier to diagnose problems.

Applications and benefits

This four-pole switch will find application wherever high reliability and effective protection against the effects of overloads and short circuits are required. It is ideal for:

• Main distribution boards: Provides central protection for the entire electrical installation.
• Motor power circuits: Its C characteristic allows it to react more slowly to short current surges, so it tolerates starting devices with a motor well.
• Industrial applications: Protects sensitive equipment from damage caused by power disturbances.
• Commercial buildings: Ensures safe and reliable operation of electrical systems in offices, shops or warehouses.
• Photovoltaic installations: Can be used to protect DC circuits in PV systems (after selecting appropriate parameters).

By choosing the DPX3 160 switch, you are investing in:

• Effective protection: A short-circuit breaking capacity of 25kA guarantees a quick disconnection of the circuit in the event of a failure.
• Precise settings: The adjustable overload trip unit setting range allows for optimal adaptation to the load characteristics.
• High reliability: Solid construction and high-quality materials ensure long-term operation of the device.
• Easy installation: The design for mounting on a TH rail simplifies the installation and servicing process.
• Versatility: The ability to expand with additional accessories (motor drive, auxiliary contacts) increases the functionality of the device.