Suntree 32 Amps 550V 2 Pole DC Solar Circuit Breaker (MCB)
The Suntree 32 Amps 550V 2-Pole DC Solar Circuit Breaker is designed to protect photovoltaic (solar) systems from overcurrent and short circuits. With a voltage rating of up to 550V DC and a current rating of 32 amps, it is suitable for high-voltage solar installations. The 2-pole configuration allows for two separate circuits to be protected simultaneously. Built to meet safety standards, this breaker ensures reliable operation and provides protection for solar panels, inverters, and other critical components in the DC circuit, ensuring the longevity and efficiency of solar power systems.
Suntree 32 Amps 550V 2 Pole DC Solar Circuit Breaker (MCB) Features
• Short circuit protection, overload protection
• High breaking capacity, up to 6kA
• No positive and negative poles, can be reversed, easy to connect
• Rated working current to 32A
• 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
Suntree 32 Amps 550V 2 Pole DC Solar Circuit Breaker (MCB) Electrical Technical reference
| SL7N-63 | |
| Rated insulation voltage (Ui) | 1250V |
| Rated service voltage (Ue) | DC(1P):15V,60V,100V,180V,250V; DC(2P):125V,375V,550V,600V,800V DC(3P):750V,800V; DC(4P):800V,1000V 1200V |
| Rated current of current shell frame | 63A |
| Different currents In the same current shell frame | 6A、10A、 16A、 20A、 25A、32A、 40A、 50A、 63A |
| Rated service short-circuit breaking capacity Ics=Icu | lcs=Icu=6kA(2P800V/4P1200V Ics=Icu=2KA) |
| Mechanical life | 8500 Times |
| Electrical life | 1500 Times (< DC125V/1P, < DC250V/2P) 1000 times (other voltage specifications) |
| Crtificate |  |
| Rated impulse withstand voltage Uimp | 6kV |
| Trip characteristics I trip type | B/C |
| Overvoltage category | Ⅲ |
| Class of pollution | 3 |
| Ingress protection | IP40; terminal IP20 |
| Resistance to heat and humidity | Class 2 |
| Relative humidity | ≤95% |
| Standards compliant | IEC 60947-2 GB/T 14048.2 |
| Shock resistance | According to IEC60068-2-6 |
| Mechanical shock resistance parameters | According to IEC60068-2-27 |
| Service ambient temperature | -30℃~70℃ |
| IEC60068-4Resistance to heat and humidity(IEC60068-4) | Class Db (temperature 55℃ 6 cycles) |
| Storage ambient temperature | -40℃~85℃ |
| Altitude | ≤2000m |
| Weight accessories | 0.12kg/P |
| Accessories | OFISD/MX/MN/MX+OF |
| MX control voltage Us | DC:12V,24V,220V; AC:110V,220V,380V power supply recommended not less than 75W |
| MN rated voltage Un | AC220V AC380V |
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