Surge Protective Device

  • LT-40  Surge Protector ,Small size, ultra-thin, special for small distribution box
  • LT-40  Surge Protector ,Small size, ultra-thin, special for small distribution box

LT-40 Surge Protector ,Small size, ultra-thin, special for small distribution box

SummaryIt is mainly used to provide T2 protection for various electronic and electrical equipment in buildings vulnerable to lightning overvoltage.Mainly used as primary protection equipment in the main distribution system.

Characteristic

Location of Use:Distribution cabinet,JP cabinet etc.

Chinese Standard:GB/T18802.11-2020

Network Systems:TN-S,TN-C,TT

IEC standard:IEC 61643-11:2011

Mode of Protection:L-PE,N-PE,L-PEN,L-N

European standard:EN 61643-11:2012

Protective Elements:High Energy MOV

Certificates:TUV,CE,CQC

Technical Data(Type 2(T2)SPD)

Technical Data

Model number

LT-20

LT-40

Max Continuous Operating Voltage

Uc(V~)

275/320/385/440

275/320/385/440

Nominal discharge current

In(kA)

10

20

Maximum discharge current

lmax(kA)

20

40

Protection level

Up(kv)

<1.3/1.4/1.6/1.8

<1.4/1.5/1.8/2.2

Response time

(ns)

<25

<25

General paramete




Access wire area

(mm²)

10

10

Access ground cross-sectional area

(mm²)

16

16

SPD special disconnector

Recommend

LT-SSD40

LT-SSD40

Working environment

-40~+70°C,relative humidity<95%(below 25)

Remote communication connection       

1411:NO,1112:NC

Associated disconnectors

Thermal

disconnector internal

Mechnical characteristics

Connection By screw terminals

6-25  mm²

Terminal Screw Torque

2.5 Nm

Recommended Cable cross Section

≥16mm²

Insert wire length

15mm

Mounting DIN rail

35mm(EN60715)

Degree of Protection

P20

Housing

PBT/PA

Flame retardant grade

UL94 V0

Operating temperature

40℃~+70℃

Operating relative humidity

5%-95%

Working atmospheric pressure

70kPa106kPa

Size

Poles

1P

1+NPE

2P

3P

4P

3+NPE

Size (mm)

18×90(83)×67

36×90(83)×67

36×90(83)×67

54×90(83)×67

72×90(83)×67

72×90(83)×67

Packing

Inner box

Delivery packaging

Carton or Pallet

Dimensional drawing

LT-40 Surge Protector.jpg