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Surge protection module
Surge protection modules, also known as surge protective devices (SPDs) or transient voltage surge suppressors (TVSS), are critical components for safeguarding electrical and electronic equipment against voltage spikes caused by lightning strikes, switching operations, or grid disturbances. These devices are designed to clamp transient overvolta...
Surge protection modules, also known as surge protective devices (SPDs) or transient voltage surge suppressors (TVSS), are critical components for safeguarding electrical and electronic equipment against voltage spikes caused by lightning strikes, switching operations, or grid disturbances. These devices are designed to clamp transient overvoltages and divert surge currents to ground, protecting sensitive loads. Key technical parameters include maximum continuous operating voltage (Uc), nominal discharge current (In) typically 5 kA to 20 kA, maximum discharge current (Imax) up to 100 kA, voltage protection level (Up), and response time in nanoseconds. They are available in Type 1 (for direct lightning strikes), Type 2 (for switching surges), and Type 3 (for fine protection at equipment level), with configurations like 1P, 2P, 3P, 4P, and 1P+N. Common standards include IEC 61643-11 and EN 61643-11.
These modules are installed in main distribution boards (MDBs), sub-distribution boards (SDBs), and control panels in industrial, commercial, and residential applications. They are essential in sectors such as manufacturing, telecommunications, data centers, renewable energy (solar PV and wind), transportation (railways and airports), and building automation. Surge protection is mandatory in many electrical installations to ensure system reliability and prevent downtime.
Key subcategories include Type 1 surge arresters for high-energy surges, Type 2 surge protection devices for secondary protection, and Type 3 socket-mounted protectors for terminal equipment. Common article codes follow patterns like SPD-1-40-275 (Type 1, 40 kA, 275 V) or SPD-2-20-385 (Type 2, 20 kA, 385 V). Specific products include the SPD-1-100-440 for main panels and SPD-2-40-275 for sub-distribution. These codes often include voltage rating, discharge capacity, and pole configuration.
Our surge protection modules come with real-time pricing, detailed technical datasheets, and global express shipping. Our engineering team provides personalized support for selecting the correct SPD based on system voltage, surge environment, and coordination requirements. We ensure compliance with international standards and offer fast delivery to any location worldwide.
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