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
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Surge Protection Devices (SPD) are used for electric power supply networks, telephone networks, and communication and automatic control buses. The Surge Protection Device (SPD) is a component of the electrical installation protection system. This device is connected in parallel on the power supply circuit of the loads that it has to protect (see Fig.1). It […]
SPDs’ operating characteristics are defined by several technical characteristics. The following are some technical characteristics that should be considered: maximum continuous operating voltage, ac or dc application, nominal discharge current (defined by a magnitude and waveform), voltage-protection level (the terminal voltage that is present when the SPDs are discharging a specific current) and temporary overvoltage […]
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