The Dehn 920322 combined surge arrester module is a compact solution for protecting four individual conductors with a common reference potential. It provides an effective way to safeguard electrical systems against surges. The module is equipped with innovative LifeCheck technology, which detects and indicates thermal and electrical overload conditions, signaling when a replacement of the arrester is necessary. This feature allows for proactive maintenance and enhances the safety of the electrical installation. Installation is straightforward with screws, making the setup easier. With a lightning impulse current of 10 kA and a nominal discharge current of 20 kA, the module offers a high level of protection, while the IP20 protection class makes it suitable for use in dry indoor environments.

• LifeCheck technology for overload condition detection
• Space-saving design for easy integration
• High lightning impulse current of 10 kA
• Simple installation with screw system.