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MYS5-440/20-4P（NS）Modular surge protective device for TN-S systems ("4+0" circuit)

Name: MYS5-440/20-4P（NS）Modular surge protective device for TN-S systems ("4+0" circuit)
Brand: XIAN XIWUER ELECTRONIC AND INFO. CO., LTD
SKU: MYS5-440/20-4P (NS)
Price: negotiable USD
Availability: InStock

Brand Name:	XIWUER
Model Number:	MYS5-440/20-4P (NS)
MOQ:	100
Price:	Negotiable
Payment Terms:	L/C,T/T
Supply Ability:	3,000,000 pcs a year

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

ISO9001,ISO14001,ISO45001,CCC

Parameter:

MYS5-440/20-4P (NS)

Model / Specification:

MYS5-440/20-4P (NS)

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:

Minimum Installation Wire Cross-section:

1.5mm² Solid Wire / Flexible Wire

Maximum Installation Wire Cross-section:

35mm² Stranded Wire / 25mm² Flexible Wire

Screw Hole Type / Torque:

M2/0.25Nm

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 Above

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

Packaging Details:

Carton

Supply Ability:

3,000,000 pcs a year

Product Description

The MYS5-440/20-4P and MYS5-440/20-4P (NS) are modular surge protective devices (SPDs) designed for TN-S systems using a "4+0" circuit configuration. Both models are classified as Type 2 according to EN 61643-11 and Class II according to IEC 61643-11, making them suitable for installation at the distribution board level to protect electrical installations against transient overvoltages caused by switching operations or indirect lightning strikes.

Both devices feature an AC nominal voltage of 230/400V (50/60Hz) and offer a maximum continuous operating voltage of 275V (50/60Hz) between L and N, and 255V (50/60Hz) between N and PE. With 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, these SPDs provide robust protection for demanding applications. The voltage protection level (Up) is ≤ 1.5kV for both L-N and N-PE, while response times are ≤ 25ns for L-N and ≤ 100ns for N-PE, ensuring fast and reliable clamping of surge events.

The devices operate over a wide temperature range of -40℃ to +70℃ and feature a clear green/red operating status and fault indication, allowing users to quickly identify the health of the protection module. Each unit has a single port and accepts installation wires from 1.5mm² (solid/flexible) up to 35mm² (stranded) or 25mm² (flexible). The screw terminals use M5 screws with a tightening torque of 3.0Nm±10%. Mounting is via a 35mm DIN rail in accordance with EN 60715, and the housing is made of thermoplastic material rated UL 94 V-0 for flame retardancy. The devices are intended for indoor installation and carry an IP20 degree of protection.

The key difference between the two models is that the MYS5-440/20-4P (NS) version is equipped with a remote signaling function. It provides a floating changeover contact with an AC switching capacity of 125VAC/1A and a DC switching capacity of 30VDC/0.5A. The remote signaling terminal accepts a conductor cross-section of 0.2mm² and uses M2 screws with a tightening torque of 0.25Nm. This makes the (NS) variant particularly suitable for installations where remote monitoring of SPD status is required, such as in industrial control cabinets or building management systems.

MYS5-440/20-4P（NS）Modular surge protective device for TN-S systems ("4+0" circuit)

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products details

MYS5-440/20-4P（NS）Modular surge protective device for TN-S systems ("4+0" circuit)

MYS5-440/20-4P（NS）Modular surge protective device for TN-S systems ("4+0" circuit)