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Shenzhen LLH Electrical Co., Ltd.

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China 4P SPD Surge Arrester 20KA 40KA 3 Phase For Three Phase Terminal Cabinets
China 4P SPD Surge Arrester 20KA 40KA 3 Phase For Three Phase Terminal Cabinets

  1. China 4P SPD Surge Arrester 20KA 40KA 3 Phase For Three Phase Terminal Cabinets
  2. China 4P SPD Surge Arrester 20KA 40KA 3 Phase For Three Phase Terminal Cabinets
  3. China 4P SPD Surge Arrester 20KA 40KA 3 Phase For Three Phase Terminal Cabinets

4P SPD Surge Arrester 20KA 40KA 3 Phase For Three Phase Terminal Cabinets

  1. MOQ: 1 piece
  2. Price:
  3. Get Latest Price
Delivery Time 7-15 days
Humidity Resistance ≤95%RH At 40℃
Supply Ability 5000-10000 pieces/mouth
Overall Dimension Standard 90×72×68mm
Packaging Details Box
Cable Compatibility 2.5mm² ~ 32mm² Copper Wires
Payment Terms L/C,D/A,D/P,T/T,Western Union
Protection Topology L1/L2/L3-N + Separate N-E Circuit
Available Uc Ratings 320Vac, 385Vac Dual Options
Model Number LPM 80-385/3+NPE
Place of Origin China
Brand Name LLH

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  1. Product Details
  2. Company Details

Product Specification

Delivery Time 7-15 days Humidity Resistance ≤95%RH At 40℃
Supply Ability 5000-10000 pieces/mouth Overall Dimension Standard 90×72×68mm
Packaging Details Box Cable Compatibility 2.5mm² ~ 32mm² Copper Wires
Payment Terms L/C,D/A,D/P,T/T,Western Union Protection Topology L1/L2/L3-N + Separate N-E Circuit
Available Uc Ratings 320Vac, 385Vac Dual Options Model Number LPM 80-385/3+NPE
Place of Origin China Brand Name LLH
High Light 4P SPD surge arrester 20KA3 phase surge arrester 40KAT2 SPD for terminal cabinets
3+NPE topology surge arrester built for three-phase five-wire TN-S and TT power systems, with separated phase-earth and neutral-earth discharge paths to avoid unbalanced neutral current issues seen on standard 4P SPDs. Classified as combined T2+T3 fine protection for LPZ1-LPZ2 terminal panels, carrying 20kA nominal and 40kA max surge capacity to withstand repeated lightning impulses. Vibration-proof pluggable modules fit continuously vibrating production cabinets, front visual window indicates module degradation, while remote contacts integrate with SCADA and building BA systems. Wide cable range supports high-power terminal circuits with consistent residual voltage clamping from -40℃ to +80℃.


Product features
●  Balanced surge diversion via 3-phase plus independent NPE dual paths
●  Dual Uc variants matching international three-phase mains grids.
●  Extra wide wiring range for heavy-duty power conductors
●  Passive dual alarm contacts for unattended electrical room monitoring.
●  Consistent operation in damp enclosed distribution enclosures.

●  Suitable for installation in LPZ 1 -2 and subsequent lightning protection zones , it is used as a fine lightning arrester for three-phase power supply systems .


Specification

Based on criteria

GB/T 18802.11-2020

SPD type

T2,T3

SPD model

SLV 20-385/3+NPE

SLV 20-320/3+NPE

Electrical parameters

Nominal operating voltage Un

220Vac(50Hz)

Maximum continuous operating voltage Uc

385Vac(50Hz)

320Vac(50Hz)

Nominal discharge current (8/20μs)In

20kA

20kA

Maximum discharge current (8/20μs)Imax

40kA

40kA

Voltage protection level In@Up

L-N:≤1 .3kV

N-E:≤1 .5kV

L-N:≤1 .0kV

N-E:≤1 .5kV

L 123-N(3kA&6kV) Uoc

≤600V

≤800V

Response time tA

L-N:≤25ns

N-E:≤100ns

Protected mode

L1,L2,L3-N,N-E

Mechanical parameters

Way to install

DIN 35mm guide rail

Screw torque

5 N*m

Strand length

12mm

Wiring cross-sectional area

2.5mm²-32mm²

Product size

90mmx72mmx68mm

Shell Material and Flame Retardant Rating

Mineral nylon PA6 ,V0

Warning system

Degradation indicator

Green window: OK; red window: Fail

Remote communication contact type

Normally closed , normally open switching contact

Remote communication contact switching capability

125Vac/1A,125Vdc/0 .2A

Work environment

Installation site

Indoor

Outer shell protection rating

IP20

Temperature range

-40℃…+80℃

Humidity range

Relative humidity ≤95% (max 40°C)


FAQ

Q1: What is the core difference between 3+NPE and 4P SPD?

A: 4P units share a common neutral path; 3+NPE adds dedicated N-E discharge channel for more balanced neutral surge flow, ideal for sensitive terminal loads. 


Q2: Can this topology be used on TN-C-S distribution networks?

 A: Yes, follow standard grounding wiring for separated PE branches.


Q3: Can multiple arresters be wired in parallel on one alarm circuit?

 A: Dry contacts can be paralleled via relays for unified central monitoring signals.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2018

  • Total Annual:

    1000000-10000000

  • Employee Number:

    20~100

  • Ecer Certification:

    Verified Supplier

Shenzhen Leilihai Electric Co., Ltd We are a high-tech enterprise that integrates the research and development, manufacturing, sales, and installation services of lightning protection devices and lightning protection system supporting products. The company has successively passed the German TUV cer... Shenzhen Leilihai Electric Co., Ltd We are a high-tech enterprise that integrates the research and development, manufacturing, sales, and installation services of lightning protection devices and lightning protection system supporting products. The company has successively passed the German TUV cer...

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Get in touch with us

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  • Shenzhen LLH Electrical Co., Ltd.
  • Room 303, Building A, Niu Lake Intelligent Park, Niu Lake Junxin, Guanlan Street, Longhua District, Shenzhen
  • https://www.llhspd.com/

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