Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA

Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA

  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
Summary
Cj-D20 4P 1.2kA 20kA Lightning Surge Protection Device is a high-performance SPD designed for power systems, offering reliable protection against transient overvoltages caused by lightning or switching surges. Featuring a pluggable design and advanced protective elements including high-energy MOV and GDT, this Class II+III / Type 2+3 SPD ensures stable and safe operation in TT, TN-S, and other power supply systems. With a nominal discharge current of 10kA and maximum discharge current up to 20kA, it provides robust voltage limitation (Up ≤ 1.8kV) and short-circuit current withstand up to 10kA. Ideal for sub-distribution boards in renewable energy and industrial applications, it supports wide operating temperature (-40°C to +70°C) and humidity ranges (5%–95%), ensuring durability in harsh environments. The built-in disconnector and visual fault indicator enhance safety and maintenance efficiency, making it a critical component for modern power infrastructure protection.More
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA
  • Surge Protection Device 10kA 20kA Lightning Voltage Protector for Power Systems Cj-D20 4P 1.2KA 20KA

Description

Surge protection device(SPD) is an indispensable device for lightning protection of electronic equipment. It is used to limit the instantaneous overvoltage of the power line and signal transmission line to the voltage range that the equipment or system can withstand, or A powerful lightning current drains into the ground to protect the protected equipment or system from impact and damage.

Main structure and working principle

  • SPD is a port, anti-stock protection, indoor fixed installation, voltage limited type.
  • SPD built-in disconnector. When the SPD fails due to overheating and breakdown, the disconnector can automatically detach its grid and given an indication signal.
  • When the SPD is woking normally, the visible window displays green, and when the failure is detached, it displays red.
  • 1P+N,2P+N,3P+N consists of 1P, 2P,3P SPD+NPE zero ground protection module, applied to TT, TN-S and other power supply systems.

Technical Data

IEC Electrical150275320385440
Nominal AC Voltage (50/60Hz)120V230V230V230V400V
Maximum Continuous Operating Voltage (AC)(L-N)Uc150V275V320V385V440V
(N-PE)Uc255V
Nominal Discharge Current (8/20μs)(L-N)/(N-PE)In10kV/10kA
Maximum Discharge Current (8/20μs)(L-N)/(N-PE)Imax20kA/20kA
Voltage Protection Level(L-N)/(N-PE)Up0.6kV/1.5kV1.3kV/1.5kV1.5kV/1.5kV1.5kV/1.5kV1.8kV/1.5kV
Follow Current Interrupt Rating(N-PE)Ifi100ARMS
Response Time(L-N)/(N-PE)tA<25ns/<100ns
Back-Up Fuse (max)125A gL /gG
Short-Circuit Current Rating (AC)(L-N)ISCCR10kA
TOV Withstand 5s(L-N)UT180V335V335V335V580V
TOV 120min(L-N)UT230V440V440V440V765V
modeWithstandSafe FailSafe FailSafe FailSafe Fail
TOV Withstand 200ms(N-PE)UT1200V
Operating Temperature Range-40oF to +158oF[-40oC to +70oC]
Permissible Operating HumidityTa5%…95%
Atmospheric pressure and altitudeRH80k Pa..106k Pa/-500m..2000m
Terminal Screw TorqueMmax39.9 lbf-in[4.5 Nm]
Conductor Cross Section (max)2 AWG(Solid, Stranded) / 4 AWG (Flexible)
35 mm2(Solid,Stranded) / 25 mm2(Flexible)
Mounting35 mm DIN Rail,EN 60715
Degree of ProtectionIP 20 (built-in)
Housing MaterialThermoplastic: Extinguishing Degree UL 94 V-0
Thermal ProtectionYes
Operating State / Fault IndicationGreen ok / Red defect
Remote Contacts (RC) / RC Switching CapacityOptional
RC Conductor Cross Section (max)AC:250V/0.5A;DC:250V/0.1A;125V/0.2A;75V/0.5A
16 AWG(Solid) / 1.5 mm2(Solid)
DC Contactor, AC Contactor, Low Voltage Protection Devices, Electrical Control Device, Solar Energy Equipments
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