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Surge Protective Device
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MYS5-400/20-3P+NPE (NS7) Is A Modular Surge Protective Device ("3+1" Circuit) For TT And TN Systems.

MYS5-400/20-3P+NPE (NS7) Is A Modular Surge Protective Device ("3+1" Circuit) For TT And TN Systems.

Brand Name: XIWUER
Model Number: MYS5-400/20-3P+NPE (NS7)
MOQ: 100
Price: Negotiable
Payment Terms: L/C,T/T
Supply Ability: 3,000,000 pcs a year
Detail Information
Place of Origin:
China
Certification:
ISO9001,ISO14001,ISO45001,CCC
Parameter:
MYS5-400/20-3P+NPE (NS7)
SPD According To EN 61643-11:
Type 2
SPD According To IEC 61643-11:
Class II
AC Nominal Voltage (UN):
230/400V (50/60Hz)
Operating Temperature Range (TU):
-40℃ To +70℃
Operating Status / Fault Indication:
Green/Red
Number Of Ports:
1
Minimum Installation Conductor Cross-section:
1.5mm² Solid / Flexible Wire
Maximum Installation Conductor Cross-section:
35mm² Stranded / 25mm² Flexible Wire
Screw Hole Type / Torque:
M5/3.0Nm±10%
Mounting Method:
35mm DIN Rail, According To EN 60715
Housing Material:
Thermoplastic Material, UL 94 V-0
Installation Location:
Indoor
Degree Of Protection:
IP20
Dimensions:
See Figure Below
Remote Signaling Contact Type:
Floating Changeover Contact
AC Switching Capacity:
125VAC/1A
DC Switching Capacity:
30VDC/0.5A
Cross-section Of Remote Signaling Terminal:
0.2mm²
Screw Hole Type / Torque (remote Signaling):
M2/0.25Nm
Packaging Details:
Carton
Supply Ability:
3,000,000 pcs a year
Product Description

Product Description

The MYS5-400/20-3P+NPE is a modular surge protective device (SPD) designed for use in TT and TN systems, featuring a "3+1" circuit configuration. It provides reliable protection against transient overvoltages caused by lightning strikes and switching operations in low-voltage AC power distribution systems.

The device is classified as Type 2 according to EN 61643-11 and Class II according to IEC 61643-11, making it suitable for installation at the sub-distribution board level. It offers a nominal discharge current (8/20μs) of 20kA and a maximum discharge current (8/20μs) of 40kA for both L-N and N-PE paths, ensuring robust surge handling capability.

With a low voltage protection level (Up) of ≤1.5kV for both L-N and N-PE, the SPD effectively limits residual overvoltage to protect downstream equipment. The fast response times of ≤25ns (L-N) and ≤100ns (N-PE) ensure immediate reaction to surge events.

The MYS5-400/20-3P+NPE operates over a wide temperature range of -40℃ to +70℃ and features a clear green/red status indicator for operating status and fault indication. It is designed for 35mm DIN rail mounting according to EN 60715, with a compact thermoplastic housing rated UL 94 V-0 and IP20 protection, suitable for indoor installation.

The NS7 version additionally provides a floating changeover contact for remote signaling, with AC switching capacity of 125VAC/1A and DC switching capacity of 30VDC/0.5A, enabling remote monitoring of the SPD status.

This product is an ideal solution for comprehensive surge protection in TT and TN power supply systems, safeguarding sensitive electrical and electronic equipment in residential, commercial, and industrial applications.

MYS5-400/20-3P+NPE (NS7) Is A Modular Surge Protective Device ("3+1" Circuit) For TT And TN Systems.MYS5-400/20-3P+NPE (NS7) Is A Modular Surge Protective Device ("3+1" Circuit) For TT And TN Systems.