Features Basic Composition: The 2P 40KA household protective arrester is comprised primarily of zinc oxide varistors and robust metal enclosures, ensuring comprehensive protection. Safe Functionality: Equipped with a 40KA maximum discharge current capability, the arrester device effectively absorbs and dissipates sudden voltage spikes, safeguarding electrical appliances and circuits from damage,maintaining a stable and safe power supply environment. Portable installation: The house arrester device boasts a compact and lightweight form factor, making it highly portable and easy to install in various residential settings, from panel boards to individual outlet locations, without compromising on protection effectiveness. Durability & Reliability: the household arrester's good components and robust construction ensure long-lasting performance. The house protective low voltage arrester device's self-resetting capability ensures continuous protection without manual intervention, enhancing overall reliability and convenience. Ease of Operation: Featuring user-friendly installation instructions and a straightforward design, installation of the low voltage arrester device requires minimal technical expertise. 1. and high quality 2. This House Protective Device is only suitable for DC 420V 40KA 3. This Arrester Device is made of high quality material,with long serving life 4. Application: Protect electric system and on‑loading electrical from thunder and instantaneous over‑voltage 5. It has the characteristic of stable performance, and easy to install Spec: Features: and high quality This house protective device is only suitable for DC 420V 40KA This arrester device is made of high quality material, with long serving life It has the characteristic of stable performance, and easy to install Specifications: Model: 2p 40kA Uc: ~ 420 v UP Number of poles: 2 Size: 9 x 4cm / 3.54 x 1.57in Weight: 225g Package included: 1 x Arrester Device packing list: 1 x Arrester Device Package List 1 x Arrester Device