Surge Protective Device

  • LT-40N 4P 3+NPE Ultra-Thin Surge Protection Device
  • LT-40N 4P 3+NPE Ultra-Thin Surge Protection Device

LT-40N 4P 3+NPE Ultra-Thin Surge Protection Device

This product belongs to the T2 class AC distribution system surge protector, installed between the power supply network and equipment to relieve voltage, suppress and reduce transient and overvoltage caused by induced lightning strikes or power grid systems, and reduce harm to electrical equipment.

Characteristic

Location of Use: main distribution cabinet, JP cabinet etc. Rated Voltage Systems: TN-S, TN-C, TT

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

Protective Elements: High Energy Graphite

Chinese Standard: GB/T 18802.11-2020

IECstandard: IEC61643-11:2011

European standard: EN 61643-11: 2012 Certificates: TUV, CE

Max Continuous Operating Voltage

(AC)Uc

275V

320V

385V

Rated Voltage

(AC)Un

220V

220V

220V

Nominal Discharge Current (T2)

In

20kA

20kA

20kA

Max Discharge Current

lmax

40kA

40kA

40kA

Protection level

Up(L-N)

1.2kV

1.5kV

1.8kV

Protection level

Up(N-PE)

1.2kV

1.2kV

1.2kV

Follow Current Interrupt Rating

In

300A(N-PE)

Response Time


25ns

Back up fuse

LT-SSD40

TOV

N-PE

1200V

Residual current-Leakage current at Uc

lpe

NONE

Admissible short-circuit current

Isccr

25000A

Remote communication

With

Remote communication connection

1411:NO,1112:NC

Remote contact rated current

220V/0.5A


Associated disconnectors

Thermal disconnector

internal

ground fault breaker

None

 

Mechnical characteristics

Connection

By screw terminals:6-25 mm²

Terminal Screw Torque

The upper1.2Nm,The bottom 2.0 Nm

Recommended Cable cross Section

≥6mm2

Insert wire length

The  uppe12mm,  The  bottom15mm

Mounting

DIN  rail  35mm(EN60715)

Degree of Protection

IP20

Housing

PS

Flame retardant grade

UL94  V0

Operating  temperature

40℃~+70℃

Operating relative humidity

5%-95%

Working atmospheric pressure

70kPa~  106kPa


Size

Poles

2P

1+NPE

4P

3+NPE

Size(mm)

18×83×67

18×83×67

36×83×67

36×83×67

Packing

Inner box

Delivery packaging

Carton or Pallet


Dimensional drawing

TYPE 2 surge protector 01.jpg