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DC Circuit Breaker 1000-1500 V

Our high-voltage DC Circuit Breaker (1000–1500 V) is built for the real-world demands of large-scale solar farms, battery energy storage, and other advanced DC applications. Whether you’re running a utility-scale PV installation or a heavy-duty industrial setup, this breaker delivers rock-solid protection without compromise. It handles extreme voltages with ease, thanks to its impressive breaking capacity, ultra-fast arc extinction, and rugged construction designed for years of reliable service—even in the toughest conditions.

Key benefits at a glance:

  • Safe, secure isolation when you need it
  • Rapid fault interruption to keep your system protected
  • Engineered durability for long-term performance in harsh environments

Trust it to guard your high-voltage DC setup so you can focus on generating clean, efficient power. Ready to power up safely? Add this essential protection to your next project.

Brand Suntree
Product DC Circuit Breaker 1000-1500 V
Part Number SL7N-125D
Pole 1P, 2P, 3P ,4P
Rated current In(A) 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A,125A;
Rated voltage Ue(M) 1P(DC440V, DC600V), 2P(DC800V, DC1000V), 3P(DC1200V, DC1500V), 4P(DC1500V);
Different currents In the same current shell frame 6A,10A,16A, 20A,25A, 32A,40A,50A, 63A
Rated ultimate short circuit breaking capacity(Icu) 5kA/1500V
Running breaking capacity(lcs) 5kA/1500V
Mechanical life 10000
Electrical life 2000Times
Certificate CB, CE, TÜV Nord
Rated impulse withstand voltage(Uimp) 8kV
Overoltage category
Class of pollution 3
Ingress protection IP40; terminal IP20
Resistance to heat and humidity Class 2
Relative humidity ≤95%
Installation din
Relative humidity +50℃ not more than 95%
Wiring polarity requirements NO
Working temperature -40°C -+75°C
Other Specifications ·       Short circuit protection, overload protection

·       High breaking capacity, up to 8kA

·       No positive and negative poles, can be reversed, easy to connect

·       Rated working current to 125A

·       Opening distance>9mm, quickly cut off the arc

·       Labyrinth arc interrupter

·       U-shaped magnetic blowing structure, improve the ability of disaster arc

·       7 rivets ensure wiring reliability

·       Busbar design, reliable and beautiful wiring

·       Unique shape design

·       DC products with complete accessories, photovoltaic and energy storage systems

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