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How to reduce DC Isolating Switch failure frequency?
To fundamentally reduce the failure rate of DC isolating switch, you need a three-pronged strategy: selecting arc-resistant, certified components, such as Suntree's specialized models;
• 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 63A
• 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
| SL7N-63 | |
| Frame degree rated current (A) | 63A |
| Ue Rated operating voltage (VDC) | DC(3P): 750V, 800V; DC(4P):800V, 1000V 1200V |
| Rated Current In (A) | 6A、10A、16A、20A、25A、32A、40A、50A、63A |
| Rated insulation voltage Ui (VDC) | 1200V |
| Rated Impact voltage Uimp (kV) | 4 |
| Mechanical life | 8500 Times |
| Electrical life | 1500 Times (< DC125V /1P, < DC250V/ 2P) 1000 times (other voltage specifications) |
| Certificate |  |
| Ultimate breaking capacity Icu (kA) | 6kV |
| Run breaking capacity Ics (Icu) | 75% |
| Overvoltage category | Ⅲ |
| Pollution Level | 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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