TRS3 Series DC SPD

Data:2025-05-05
  • DC Surge Protector for EV Charger / Energy Storage System (ESS) / Telcom Communication

  • Varistor surge arrester

  • Installtion to DC network

  • for protection of DC network where the separating spark-over distance is kept or without LPS

  • Optional remote fault signalling(S)

Surge Protective Devices (SPDs) provide protection against electrical surges and spikes, including those caused directly and indirectly by lightning. They can be utilized as complete devices or as components within electrical equipment.

Photovoltaic (PV) system converts solar energy into direct current electricity. PV system ranges from small, rooftop-mounted or building-integrated systems with capacities from a few to several tens of kilowatts, to large utility-scale power stations of hundreds of megawatts. The potential impact of lightning events increases with PV system size. At locations with frequent lightning, unprotected PV systems will suffer repeated and significant damages. This results in substantial repair and replacement costs, system downtime and loss of revenue. Properly installed surge protective devices (SPDs) will minimize the potential impact of lightning events.

Sensitive electrical equipments of PV system like AC/DC Inverter, monitoring devices and PV array must be protected by surge protective devices (SPD).

To determine the proper SPD module for the PV system and its installation, you must know:

1.the lightning round flash density;

2.the system's operating temperature;

3.the system's voltage;

4.the system's short circuit current rating;

5.the level of waveform that is to be protected against (indirect or direct lightning); and the nominal discharge current.

The SPD that is provided on the dc output must have a dc MCOV equal to or greater than the maximum photovoltaic system voltage of the panel.

THOR TRS3-C40 series type 2 or Type 1+2 DC SPDs for PV solar system can be like Ucpv DC500V,600V,800V,1000V,1200V, and the max 1500v.

  • Electrical Characteristics
  • Typ name
    TRS3-C40 24v DC
  • SPD type
    T2
  • Nominal PV voltage(Uocstc)
    24 V DC
  • Maximum operating voltage mode +/-, +/PE, -/PE(UCPV)
    36 V DC
  • Nominal discharge current (8/20μs) (In)
    20 kA
  • Maximum discharge current (8/20μs) (Imax)
    40 kA
  • Voltage protection level mode +/PE, -/PE(Up)
    ≤ 0.6kV
  • Short-circuit current rating(ISCPV)
    10kA
  • Response time(ta)
    < 25ns
  • Cross-section of connected conductors solid (min/max)
    16 mm² / 35 mm²
  • Cross-section of connected conductors stranded (min/max)
    16 mm² / 35 mm²
  • Remote indication
    potential-free change-over contact
  • Remote indication contacts
    250 V / 0,5 A AC, 250 V / 0,1 A DC
  • Cross-section of remote indication conductors
    1,5 mm²
  • Degree of protection
    IP20
  • Range of operating temperatures (min/max)
    -40℃~+70℃
  • Humidity range
    5%~95%
  • Mounting
    DIN rail 35 mm
  • According to standard
    EN 61643-31:2012,
  • Fault indication
    red indication field
  • Remarks
    Other UCPV can be customized.