GENERAL INFORMATION
l Two-pole/ Three pole/ Four pole varistor surge protective device (AC SPD)
l Combined SPD Type 1&2 with MOV and CDGG technology for use in different power system.
l Visual indication and optional remote contact signaling(S), capable of protecting Terminal equipment.
l Non-follow current.
l The Prewired complete unit consisting of a base part and replaceable plug-in protection modules.
l Installation at the boundaries from zone LPZ 0A to LPZ 2.
l Installation at the boundary of zones LPZ1 and LPZ2
l Use for the direct lightning protection in Power system, can usage in Transformer low-voltage side.
l DIN rail installation.
SPECIFICATIONS
l SPD according to EN 61643-11/IEC 61643-11: Type 1+2/ Class Ⅰ+Ⅱ
l Max. continuous operating voltage (a.c.) (Uc): 385V (50/60Hz)
l Temporary overvoltage (TOV): 385V/5s-withstand
l Lightning impulse current (10/350µs) (Iimp): 12.5kA
l Nominal discharge current (8/20µs) (In): 20kA
l Max. discharge current (8/20µs) (Imax): 50kA
l Voltage protection level (Up): ≤2.2kV
The components of a SPD The SPD chiefly consists of (see Fig.1): 1) one or more nonlinear components: the live part (varistor, gas discharge tube, etc.); 2) a thermal protective device (internal disconnector) which protects it from thermal runaway at end of life (SPD with varistor); 3) an indicator which indicates end of life of […]
In today’s world, electronic devices are an integral part of our everyday lives, and their importance continues to grow. We use them for work, communication, entertainment, and even education. However, these devices are vulnerable to damage caused by power surges. Surge protective devices (SPDs) have become increasingly important to protect our electronic devices. In this article, we […]
Dc fuse is a very easy to use protection facilities, when the abnormal circuit is often accompanied by rising current, the rising current will not only damage some key equipment, but also burn the circuit, cause a fire and directly cause great economic losses. After the DC fuse is installed, when the current exceeds the current value that […]
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