Power switch 3P, 50kA, TM EB2 release 400/3S 400A 3P 004671102

Power switch for protecting electrical installations

This three-pole power switch EB2 400/3S with a rated current of 400A and a short-circuit breaking capacity of 50kA is a reliable solution for protecting electrical circuits. Its use in industrial installations and public buildings guarantees safety and continuity of power supply. Equipped with a thermal-magnetic trip unit, it provides effective protection against overloads and short circuits, minimizing the risk of failure and equipment damage.

Functionality and application

The switch is designed for switching and disconnecting circuits and protecting power supply lines, motors and electrical equipment. Its construction based on proven ETI-POLAM technology ensures high reliability and long life. The possibility of mounting on a plate allows for easy integration with existing systems. Thanks to the wide range of adjustment of the overload (252…400A) and short-circuit (2400…4800A) trip units, it can be adapted to the specific requirements of a given installation.

Construction features and advantages

• High short-circuit breaking capacity: 50kA at 400V, 50Hz – ensures effective protection in the event of short circuits with high currents.
• Adjustable thermal-magnetic trip unit: allows precise adjustment of the switching characteristics to the needs of a specific application. The thermal setting range is 0.63-1 x In, and the magnetic range is 6-12 x Ir.
• Trip indicator: informs about the operation of the switch, making it easier to identify the cause of the failure.
• Solid screw connection: guarantees a secure and durable connection of the power supply cables.
• Universal mounting: the ability to mount in any position allows for flexible adaptation to installation conditions.
• Protection class IP20: provides basic protection against touch and ingress of solid objects.
• Expandability: compatible with a wide range of additional accessories, such as motor drives, auxiliary contacts or mechanical locks, which increases the functionality of the device.
• Fixed-mounted device construction: ensures stability and safety of use in demanding industrial conditions.

This switch complies with the PN-EN 60947-2 standard, which confirms its safety and high quality of workmanship. It is an ideal solution for both professional installers and end-users looking for reliable protection of electrical installations.