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STW-D40 Series Surge Protection Device – DC 1000V – 2 Pole

STW-D40 Series Surge Protection Device - DC 1000V - 2 Pole
STW-D40 Series Surge Protection Device - DC 1000V - 2 Pole - Image 2
STW-D40 Series Surge Protection Device - DC 1000V - 2 Pole - Image 3

APPLICATION
STW-D40 Series Surge Protection Device was designed and manufactured, complying the standard EN61643-31, it widely used in PV DC combiner box, inverter controller and PV DC cabinet. Rated voltage DC1000V, Maximum discharge current 40KAHigh Energy Varistor, high effective for lightning protection

FEATURES

  • Suitable for use in all PV systems
  • Prewired modular complete unit, consisting of A base part plug-in protection modules
  • Plug-in protection module, easily installation and maintainance
  • High energy varistor, response time less than 25 nanosecond
  • Optional remote signalling contact (FM) for monitoring device (Floating changeover contact)
  • Din rail mounting TH35-7.5/DIN35
  • Green window will change when fault occurs, also provide remote alarm terminall
  • Standard: EN61643-31
Electrical Characteristics 2P 3P
Type 2P 3P
Pole
Standard EN61643-31
Rated Voltage (max continuous a.c. voltage [Ue]) DC800V / DC1000V / DC1200V
Nominal discharge current (8/20) [In] 20KA
Maximum discharge current (8/20) [In] 40KA
Voltage protection level [Up] 3.2KV / 4.0KV / 4.4KV
Response time [TA] <25ns
Control and Indication
Operating State / Fault Indication Green / Red
Remote Signalling Max working voltage(V) 30V DC
Contact (Optional) Max working current(A) 1A
Connection and Installation
Wire Hard cable mm² 4mm² ~ 25mm²
Flexible cable mm² 4mm² ~ 25mm²
Terminal Screws M5
Torque (NM) Main Circuit 2.5
Remote Contact 0.25
Ingress Protection
IP Rating IP20
Installation Environment
Operating Temperature Range TU -40°C ~ 85°C
For Mounting on TH35-7.5 / DIN35
Relative Humidity 30% ~ 90%
Weight 0.24kg 0.36kg

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