The YCS8-I+II 40PV 2P DC600 is a high-performance surge protection device (SPD) designed for DC photovoltaic systems operating up to 600V. It offers dual protection—Class I (10/350μs) for direct lightning strikes and Class II (8/20μs) for induced surges—ensuring comprehensive safety for solar installations. Built on advanced zinc oxide varistor technology, it delivers a maximum discharge current of 40kA, a response time under 25ns, and no power frequency aftercurrent. The pluggable modular design allows easy maintenance, while the green/red status window provides visual fault indication. A dual thermal disconnection system enhances reliability, 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 is suitable for critical DC-side surge protection.
TECHNICAL DETAILS:
| Attribute | Specification |
| Model | YCS8-I+II 40PV |
| Type | Surge Protection Device (SPD) |
| Poles | 2 Pole |
| Rated Voltage (DC) | 600V |
| Protection Class | Class I + Class II |
| Waveform Compatibility | 10/350μs (Class I), 8/20μs (Class II) |
| 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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