AC 420V Household Surge Arrester Device Modular Design with DIN Rail Installation Features: The case is constructed from flame retardant plastic material, ensuring durability and safety during use. Inside, it has precise electronic components that contribute to a long service life and stable performance. High-quality terminals provide excellent electrical conductivity. Designed for DIN rail installation, it offers flexibility and convenience during assembly. The compact size and lightweight nature, along with its modular design, make maintenance easy. Note: 1. Installation should only be performed by a qualified electrician. 2. Size and color may vary slightly due to manual measurement and differing light conditions. Thank you for your understanding. Specifications: Pole Number: 2P+2P/4P (Optional) Color: Grey Case Material: Plastic Voltage: AC 420V Imax: 40KA In: 20KA Up: 1.8KV 3C Rated Voltage Range: 50V Voltage: 440V Item Size: 2P (Each): 35 * 65 * 90mm / 1.38 * 2.56 * 3.54in 4P: 70 * 65 * 90mm / 2.76 * 2.56 * 3.54in Package Size: 9.8 * 7.6 * 7.3cm / 3.86 * 2.99 * 2.87in Package Weight: 2P+2P: 420g / 14.81oz 4P: 383g / 13.50oz Package List: 1 * 4P Surge Protective Device