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Surge Protection Device (SPD)

Designed in accordance with IEC61643-1 and GB18802.1, our RY1-C series surge protection device, referred to as SPD, is used in the TN-S, TN-C-S, TT or IT earthing system, whose rated voltage is 380V or lower and frequency is 50 or 60Hz, for the equipotential connection of LPZ 0B or LPZ1 and LPZ2.

This product is mounted on a 35mm standard rail and it is equipped with a disconnecting module. This module can disconnect the failed SPD from the power system and give a visual alarm. It can be replaced with no need to cut off the power.

Model Description

Application Scope and Installation Position
Applicable to C-level lightning protection, this surge protection device is usually installed in the distribution box of computer center, telecommunications room, elevator control room, frequency conversion equipment control room, hospital operating room, ICU, and rooms equipped with electronic medical equipment. For small villas, the SPD should be installed in the household distribution box.

Main Technical Parameters of Surge Protection Device
Model RY1-C N-PE
Rated Operating Voltage
Un (V AC)
110 220 380 220 380 220 380
Maximum Continuous Operating Voltage
Uc (V AC)
140 275 320 385 420 440 275 320 385 420 440 255
Voltage Protection Level
Up (kV)
≤ 0.8 ≤ 1.2 ≤ 1.5 ≤ 1.8 ≤ 2.0 ≤ 2.2 ≤ 1.0 ≤ 1.4 ≤ 1.5 ≤ 1.8 ≤ 2.0 ≤ 1.0, ≤ 1.0, ≤ 1.8
Nominal Discharge Current
In (8/20 μs) kA
20 15 5, 12.5, 25
Maximum Discharge Current
Imax (8/20 μs) kA
40 30
Response Time
(ns)
< 25 100
Test Standard GB18802, IEC61643-1
Cross Section of L/N Line (mm2) 10, 16 10
Cross Section of PE Line (mm2) 10, 25 16
Fuse or switch
(A)
32 25, 32
Ambient Temperature
(℃)
-40 ℃ ~ +85℃
Relative Humidity
(25℃ )
≤ 95%
Installation 35mm standard rail
Housing Material Fiber glass reinforced plastic

Related Names
Transient Voltage Suppressor | Voltage Surge Protector | Electronic Circuit Protection Device

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