Type 1+2 PV Surge Protective Device TRS3-C40
Main Features
- Lightning impulse current(10/350μs) limp: 5kA/7kA
- Nominal discharge current (8/20μs) In: 20kA
- Maximum discharge current (8/20μs) Imax: 40kA
- Network Systems: (+)-PE, (-)-PE, (+)-(-)
- IEC/EN Category: Type 1+2 / Class I+II / Class B+C
- Protective Elements: High Energy MOV
- Housing: Pluggable design
- Application: String box, Inverter
- Compliance: EN 61643-31:2012, IEC 61643-31:2011

The TRS3C-C40 Series is a specialized Type 1+2 DC surge protective device configured as a pluggable module for robust protection in Photovoltaic (PV) systems. It is engineered to handle the high energy of direct lightning currents and switching surges, delivering comprehensive defense for DC strings and central inverters.
Designed to accommodate modern solar installations, it operates across a wide voltage range, safely handling systems up to 1500 VDC. Its compact, pluggable-module structure features an integrated module locking mechanism, ensuring reliability and simplifying maintenance without compromising security.
Equipped with high-performance protective components, the TRS3C-C40 provides superior defense against high-energy transients, evidenced by its significant lightning current handling capability. It is designed with a high short-circuit current rating ($I_{scpv}$), a key safety feature that maintains system integrity.
A clear visual fault indicator provides instant status feedback. Furthermore, optional potential-free remote signaling contacts allow seamless integration with monitoring systems for real-time fault reporting. Its DIN-rail mounting and robust enclosure design enable fast, secure installation inside combiner boxes and DC distribution enclosures.
Engineered for demanding renewable-energy environments, the TRS3C-C40 performs reliably across a wide temperature and humidity range, ensuring long-term stability in utility-scale solar farms and commercial installations requiring top-tier T1+T2 protection.
Applications
DC string protection for utility-scale and commercial PV systems requiring robust T1+T2 defense.
Solar combiner boxes, main DC distribution panels, and protection upstream of high-value inverters.
PV installations that are without an external Lightning Protection System (LPS) or where separation distance cannot be maintained.
High-voltage PV arrays up to 1500 VDC, including modern large-scale deployments.
Systems requiring visual fault indication and optional remote alarm integration, combined with enhanced operational safety.
| Parameter/Type | TRS3-C40 | |
|---|---|---|
| PV connection type | Y | |
| Nominal PV Voltage Uocstc | 1000V DC | 1250V DC |
| Max. PV Operating Voltage Ucpv | 1200V DC | 1500V DC |
| Lightning impulse current(10/350μs) Iimp | 7kA | 5kA |
| Nominal discharge current (8/20μs) In | 20kA | |
| Maximum discharge current (8/20μs) Imax | 40kA | |
| Voltage protection level mode +/PE, -/PE Up | ≤4.5kV | ≤5.0kV |
| Short-circuit current rating Iscpv | 100A | |
| Response time ta | <25ns | |
| Cross-section of connected conductors solid(min/max) | 16mm²/35mm² | |
| Cross-section of connected conductors stranded(min/max) | 16mm²/35mm² | |
| Fault indication | red indication field | |
| Remote indication | potential-free change-over contact | |
| Remote indication contacts | 250V/0.5A AC, 250V/0.1A DC | |
| Cross-section of remote indication conductors | 1.5mm² | |
| Degree of protection | IP20 | |
| Range of operating temperatures (min/max) | -40°C~+70°C | |
| Humidity range | 5%~95% | |
| Mounting | DIN rail 35 mm | |
| According to standard | EN 61643-31:2012, IEC 61643-31:2011/T1+T2 | |
| Remarks | Other UCPV can be customized. (1200VDC, 1500VDC, etc.) | |




Related Products
| Uocstc | 1000v, 1250v |
|---|---|
| Ucpv | 1200v, 1500 |
| Iimp | 5kA, 7kA |
| Z0 | 50 Ohm |
|---|---|
| IL | ≤0.3dB |
| Freq. | DC-2.5GHz |
| VSWR | <1.2 |
| Uocstc | 110v, 24v, 48v, 75v |
|---|---|
| Ucpv | 180v, 36v, 65v, 80v |
