The YCS8-II 40PV 2P DC1000 is a Class II surge protection device designed for DC photovoltaic systems operating up to 1000V. It protects electrical equipment from transient overvoltages caused by lightning or switching operations. Built on zinc oxide varistor technology, it offers a maximum discharge current of 40kA, a response time under 25ns, and no power frequency aftercurrent. The modular pluggable design allows easy replacement, while the green/red status window provides visual fault indication. A dual thermal disconnection system enhances safety, and optional remote signaling contacts support integration into monitoring systems. Ideal for PV combiner boxes, distribution cabinets, and terminal equipment, it complies with IEC 61643-31 and supports the 8/20μs waveform standard for Class II SPD testing.
TECHNICAL DETAILS:
| Attribute | Specification |
| Model | YCS8-II 40PV |
| Type | Surge Protection Device (SPD) |
| Poles | 2 Pole |
| Rated Voltage (DC) | 1000V |
| Protection Class | Class II |
| Waveform Compatibility | 8/20μs |
| Voltage Protection Level (Up) | ≤1.5kV |
| Maximum Discharge Current (Imax) | 40kA |
| Response Time | ≤25ns |
| Technology | Zinc oxide varistor |
| Module Type | Pluggable |
| Status Indicator | Green (normal), Red (fault) |
| Disconnection Mechanism | Dual thermal |
| Remote Signal Contact | Optional |
| Application | PV combiner box, DC distribution cabinet |
| Standard | IEC 61643-31 |
| Certification | CE, ISO9001 |
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