Ensure optimal electrical safety with this high-performance Surge Protective Device, designed for fast thunder protection and efficient surge suppression. Engineered to safeguard your electrical systems, this device features multiple protection levels with low residual voltage to minimize damage from power surges and lightning strikes. Its durable flame-retardant casing provides robust fire resistance, enhancing safety in various installation environments. Key Features: · Fast Thunder Protection: Rapidly guards electrical equipment against unexpected lightning strikes and power surges, minimizing risks and potential damage. · Multiple Protection Levels: Offers three selectable settings with rated currents of 40KA, 65KA, and 80KA, providing residual voltages of Up≤1.8KV, Up≤2.2KV, and Up≤2.4KV respectively to ensure reliable and customizable surge suppression. · Flame Retardant & Fire-Proof Casing: Constructed with high-quality flame-retardant materials for enhanced safety and durability under extreme conditions. · Easy Installation: Designed with a dismountable assembly and guide rail mounting for straightforward insertion and replacement, optimizing convenience and maintenance efficiency. · Superior Conductivity: Equipped with purple copper fittings that ensure excellent electrical conductivity and long-term stable performance. Specifications: · Weight: 247g (8.7oz) · Rated Current: 20KA · Setting Current & Residual Voltage Options:  - #01: 40KA, Up ≤ 1.8KV  - #02: 65KA, Up ≤ 2.2KV  - #03: 80KA, Up ≤ 2.4KV · Installation Mode: Guide Rail Mounting · Rated Voltage: 385V · Master Contact Number: 2P Package Includes: · 1 x Surge Protective Device This Surge Protective Device is an essential component for protecting electrical installations from surge-related damages. Its high surge current capacity, fire-resistant structure, and easy mounting system make it an ideal choice for residential, commercial, and industrial applications. Maximize your electrical safety with this reliable and efficient surge protection solution.