The CNC YCSS8-S 11 40PV 3P DC1000 is a high-performance Type II surge protection device designed for DC-side photovoltaic systems operating up to 1000V. It provides reliable protection against transient overvoltages caused by lightning strikes or switching operations. With a nominal discharge current of 11kA and a maximum discharge capacity of 40kA, it supports the 8/20μs waveform standard for Class II SPD testing. Its three-pole configuration makes it ideal for multi-string PV arrays, combiner boxes, and inverter inputs. The device features a pluggable module design for easy replacement, a status indicator window (green for normal, red for fault), and optional remote signaling contacts. Built on zinc oxide varistor technology, it ensures fast response time and no power frequency aftercurrent. Fully compliant with IEC 61643-31, it’s a robust solution for solar energy protection.
TECHNICAL DETAILS: 0
| Attribute | Specification |
| Brand | CNC Electric |
| Model Number | YCSS8-S 11 40PV |
| Type | Surge Protection Device (SPD) |
| Protection Class | Type II (Class II) |
| Waveform Standard | 8/20μs |
| Poles | 3 Pole |
| Rated Voltage (DC) | 1000V |
| Nominal Discharge Current (In) | 11kA |
| Maximum Discharge Current (Imax) | 40kA |
| Response Time | ≤25ns |
| Technology | Zinc oxide varistor |
| Module Type | Pluggable |
| Status Indicator | Green (normal), Red (fault) |
| Remote Signal Contact | Optional |
| Application | PV combiner box, inverter, DC cabinet |
| Standard | IEC 61643-31 |
| Certification | CE, ISO9001 |
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