| Brand | ROCKWILL |
| Model NO. | SSCB Series Solid-State Circuit-Breaker |
| Rated voltage | DC 1.5kV |
| Rated normal current | 1600A |
| Series | SSCB Series |
Solid-State Circuit-Breaker for DC applications with unidirectional or bi-directional power flow such as batteries, electrolyzer and other DC loads.
SSCB is designed to open high short circuit currents in a few microseconds through its high electrical features. SSCB is presented as a solution where fuses do not guarantee a proper protection selectivity or where the availability is critical.
The SSCB complies with the most demanding safety codes in the world adapting to the necessities of the market. SSCB is a solution designed and patented by Hitachi Energy and it uses an innovative solution to minimize the overvoltage in the fault opening. With an easy integration and low power consumption, these devices allow remote monitoring and control, as well as a high-performance protecting facility from short circuit events.
● DC storage solution as batteries: prevents battery racks fuses from blowing up. It keeps the complete system working after a fault.
● 1000x FASTER than conventional mechanical ACB, 100x FASTER than conventional fuses
● Increase the availability of renewable Energy Project + Battery Integration Solution
● Low conduction losses
● To protect up to 1500V DC systems
● Patented solution
| Main Data | |
| Switch type | Solid State DC load break Switch |
| Rated operation voltage (Ue) [V] | 1500 |
| Rated insulation voltage (Ui) [V] | 1500 |
| Rated impulse-withstand voltage (Uimp) [V] | 4500 |
| Rated uninterrupted current (@95°F/35°C) [A] | 1600 |
| Non repetitive Breaking Current [A] | 8400 |
| I/t tripping curve | Configurable within design limits |
| Losses at full current [W] | < 4000 (Efficiency 99.8% @1250Vdc) |
| DC Input | |
| Closing time (max) [µs] | 5 |
| Opening time (max) [µs] | 8 |
| Short-Circuit Protection Current (configurable) (Isc) [A] | 3000 (standard value) |
| SPD | Optional |
| Number of DC Inputs | 1 |
| Integrated DC Voltage and Current monitoring | Yes |
| Environment | |
| Operation ambient temperature (1) | From -4°F to 140°F (-20°C to 60°C), derating >122°F (50°C) |
| Maximum relative humidity | 100% |
| Max. altitude above sea level | 4000 masl, derating >1000 masl |
| Storage and transport temperature (2) | -13°F / 149°F (-25°C / 65°C) |
| Maximum relative storage humidity without condensation | 85% |
| Fresh air consumption | 1200 m³/h |
| Cabinet | |
| Dimensions [W x D x H] | 800 x 600 x 1800 [mm] |
| Weight | <500kg |
| Protection degree (2) | TYPE 3R, IP54 |
| Interface | |
| Communication channel | 1 Ethernet port: 10 or 100 Mbps (no switched) for external communications (SCADA or Energy Management System) |
| Communication port connector | RJ45 Female or Fiber (optional) |
| Luminous indicator, start/stop control and emergency stop | Yes |
| Remote access | Yes |
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