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The surge protection device, designated as UBK 2-500, is a DIN rail module tailored for safeguarding two signal wires. It is engineered with a self-contacting grounding foot, which facilitates installation on NS 32 or NS 35/7.5 rails, and measures 17.5 mm in width. The module is rated for a nominal voltage of 500 V AC and offers an overvoltage category of III.

This device's technical specifications include a maximum continuous operating voltage of 500 V AC and a rated current of 2 A. The surge protection is characterized by a nominal discharge current of 10 kA for both line-line and line-ground scenarios, ensuring robust protection against voltage spikes. Furthermore, the voltage protection level reaches 3.5 kV (C2 - 10 kV / 5 kA) for line-line and 2.2 kV (C2 - 10 kV / 5 kA) for line-earth configurations.

With an operating temperature range of -40 °C to 80 °C, this device is suitable for various environments. Its compact design, with dimensions of 17.5 mm in width, 90 mm in height, and 46 mm in depth (including the DIN rail), allows for efficient use of space in control panels and cabinets. The module's construction from PA 6.6 material and its IP20 protection degree further enhance its reliability in industrial applications.