Surge protector SPDT3-335-1+NPE 170487

Protection of electrical installations against overvoltage

The SPDT3-335-1+NPE surge protector from Eaton is a key element in protecting electrical installations, especially where protection of sensitive electronics is required. The Class T3 device, designed for mounting on a TH-35 mm DIN rail, effectively reduces the effects of indirect and voltage surges, ensuring continuous operation of devices and minimizing the risk of failure. Its compact size – only 2 modules – makes installation easy even in crowded distribution boards.

Functionality and application

This surge protector is used in installations with a rated voltage of 335V. Its construction allows for connection of conductors with a maximum cross-section of 25 mm², ensuring compatibility with most standard installations. Optical indication of the insert status (red – damaged, green – working) facilitates quick identification of problems and minimizes downtime. The maximum discharge current of 10 kA (8/20) and the rated discharge current of 2.5 kA guarantee effective protection against sudden voltage spikes. It is worth remembering that T3 type surge protectors are usually installed behind type 1 surge protectors, in sub-distribution boards, to ensure comprehensive protection.

Advantages for the installer and end user

• Fast diagnostics: Optical indication of the insert status facilitates locating damage and quick replacement of the element.
• Compact dimensions: Occupies only 2 modules on the DIN rail, allowing for installation in tight spaces.
• Versatility: Can be used in various network configurations (outside TN, IT, TN-S, TT, TN-C-S).
• Effective protection: Protects against the effects of indirect and voltage surges, protecting valuable electronic devices.
• Safety: Protects the circuit against overload and short circuit — like most circuit breakers in this class.
• Easy installation: Mounting on a standard TH-35 mm DIN rail is simple and intuitive.
• Replaceable insert: Allows for quick repair without having to replace the entire device.
• Compliance with standards: Ensures compliance with applicable safety standards.

The SPDT3-335-1+NPE surge protector is a reliable solution for anyone who cares about the safety and continuity of their electrical installation. Its solid construction and high efficiency make it an ideal choice for both professional installers and demanding end users.