Surge Protective Device

  • LT-40D T2 Class Power Distribution System AC Ultra-thin volume SPD
  • LT-40D T2 Class Power Distribution System AC Ultra-thin volume SPD

LT-40D T2 Class Power Distribution System AC Ultra-thin volume SPD

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:  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

Imax

40kA

40kA

40kA

Protection level

Up(L-N)

1.2kV

1.5kV

1.8kV

Protection level

Up(N-PE)

1.2

1.2

1.2

Follow CurrentInterrupt Rating

In

300A(N-PE)

Response Time

tA

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 comm unication connection

1411:NO,1112:NC

Remote

220V/0.5A


Associated disconnectors

Thermal disconnector

internal

ground fault breaker

None

 

Mechnical characteristics

Connection

By screw terminals: 6-35 mm2

Terminal Screw Torque

2.0 Nm

RecommendedCable cross Section

 ≥10mm2

Insert wire length

15mm

Mounting

DIN rail 35mm (EN60715)

Degree of Protection

IP20

Housing

PS

Flame retardant grade

UL94V0

Operating temperature

-40°C 〜+70°C

Operating relative humidity

5%-95%

Working atmospheric pressure

70kPa 〜106kPa



Size

PolesIP1+NPE2P3P4P
3+NPE
Size (mm)/18×83×67/
///
PackingInner box
Delivery packagingCarton or Pallet


Dimensional drawing




surge guard 01.jpg