DC Circuit Breaker
The SL7 DC circuit breaker is a PV-specific DC protection system with a rated working voltage as high as DC 1200V. The solar DC circuit breaker uses a special arcing and limiting system, so that the fault current from the DC distribution system can be quickly turned off. This protects the photovoltaic modules and prevents AV feedback current caused by high DC reverse currents and inverter failures so the solar power system operates reliably.
Features and parameter
1. DC reverse current protection
2. AV feedback current protection
3. DC load isolation switch
4. Remote tripping and alarm
5. Indicator window
6. Make-break position indicating
7. Isolation function
8. Rated short circuit capacity: 6kA
9. Rated voltage: DC500V, DC750V, DC1000V, DC1200V
10. Poles: 1P, 2P, 3P, 4P
11. Impulse to withstand voltage: 1500V
12. Instantaneous trip type: B/C/D
13. Protection rating: IP20
| Model | SL7-63PV | |||
| Poles | 1P | 2P | 3P | 4P |
| Rated voltage UE ( V ) | DC250V | DC 550V/DC 800V (customizing ) | DC750 | DC800, DC1000, DC1200V |
| Rated current In ( A) | 1 2 3 4 6 10 16 20 25 32 40 50 63 | |||
| Rated short circuit capacity Icn (A) ( T=4ms ) | 6 ( DC250V) | 6 ( DC250V) | 6(DC750V) | 6(DC1000V) |
| Instantaneous trip type | Distribution protection | |||
| Rated impulse to withstand voltage Uimp ( kV ) | 4 | |||
| Rated insulation voltage Ui | 1200 | |||
| Lifespan ( times ) | With load 10,000 times, without load 20,000 times | |||
| Environmental conditions | Ambient temperature : -25 ℃- 40 ℃ | |||
| Optional accessories | Shunt tripping device, undervoltage tripper | |||
| Maximum connection capacity | 25mm2 | |||
| Certificates | CCC/CB/TUV certificates | |||
| Standards | IEC 6047-1 GB14048-2 IEC60898-2 GB14048-1 | |||
Action characteristic curve
Environmental conditions
1. Altitude below 2000 meters. For special requirements, please contact us.
2. Ambient air temperature in a range from -25 ℃ to 40 ℃, 24-hour average temperature should not exceed 35 ℃;
3. Moist air resistant (three anti-type)
4. Salt mist corrosion resistant (three anti-type)
5. Mold-resistant (three anti-type)
6. The product should be installed in the power distribution box in waterproof places.
Dimensions
Other Products
Related names
DC circuit switch | Solar DC circuit breaker | Accessories for photovoltaic system
