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T2 20RT

T2 20RT

Short Description:

The surge  protection  device  belongs  to T2 AC  power  surge  protector,which  is  installed

between  the  power  supply  network  and  the equipment to drain,suppress and reduce the

overcurrent and overvoltage caused by induced lightning strikes or the power grid system,

so as to reduce the harm to the electrical equipment.The product is equipped with built-in

thermal release device and fuse,fuse can be replaced.It is mainly used for lightning protection

of rail transit power system


Product Detail

Product Tags

Technical Data

Max Continuous Operating Voltage (AC)Uc 275V 320V 385V 440V
Rated Voltage (AC)Un 220V 220V 220V 220V
Nominal discharge current(T2) In 20kA
Protection level Up 1.2kV 1.4kV 1.5kV 1.8kV
Follow Current Interrupt Rating Ih NONE
Response Time tA 100ns
TOV N-PE 1200V
Residual current-Leakage current at 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

Mechnical characteristics

Connection Byscrew terminals 6-25mm²
Terminal Screw Torque 2.0 Nm
Recommended Cable cross Section ≥10mm²
Insert wire length 15mm
Mounting DIN rail 35mm(EN60715)
Degree of Protection IP20
Housing PBT/PA
Flame retardant grade UL94VO
Operating temperature 40℃~+70℃
Operating relative humidity 5%-95%
Working atmospheric pressure 70kPa106kPa

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