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NEC 2026 Panel Level Rapid Shutdown Install Guide | SUNTREE
NEC 2026 maintains and refines the module‑level rapid shutdown requirement: conductors outside the array boundary must drop to 30 V or less within 30 seconds, while inside the boundary,
• Designed for AC circuits with 50Hz/60Hz frequency, rated operating voltage up to 230V/400V, and rated current from 6A to 63A.
• Provides reliable overload and short-circuit protection for electrical lines and equipment in modern buildings.
• Suitable for infrequent circuit switching and isolation.
• Supports manual dual-power supply switching when equipped with an optional interlock accessory, ensuring uninterrupted power supply to the load.
| PRODUCT MODEL | SCB8-125 | |||
| Pole | 1P | 2P | 3P | 4P |
| Rated Operational Voltage/Ue(V) | 230/400VAC | 400VAC | 400VAC | 400VAC |
| Rated Operational Current/In(A) | 6,10,16,20,25,32,40,50,63A | |||
| Frequency(Hz) | 50/60HZ | |||
| Ultimate Breaking Capacity/lcu(kA) | 6kA | |||
| Rated Breaking Capacity/lcs(kA) | 6kA | |||
| Max. Impulse Current/limp(A) | 6kA | |||
| Mechanical Life | 20000 | |||
| Electrical Life | 4000 | |||
| Fire-retardant Enclosure Level(mm) | 27*82.5*73 | 54*82.5*73 | 81*82.5*73 | 108*82.5*73 |
| Wiring diagram |  |
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| Device Width x Height (mm) | V0 | |||
| Method of Mounting | DIN RAIL | |||
| Mounting | Easy installed and fastening onto 35mm device rail(DIN) | |||
| Terminal Capacity | 25mm² | |||
| Fastening Torque of Terminals | 3N | |||
| Location | Indoor or in the Water-proof Box | |||
| Ambient Temperture | -5℃ To 50℃ | |||
| Altitude | ≤2000m | |||
| Relative Humidity | 90% | |||
| Weight(per pole) | 0.12kg | |||
| Pollution Level | 2 | |||
| Installation Class | II/III | |||
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