The surge protective devices are rated for IP20 protection, making them suitable for indoor use in environments with low exposure to dust and moisture. They can operate in temperatures from -40°C to +85°C, ensuring performance in diverse conditions.
Description
The OMYH9 Series DC Surge Protective Devices (SPD) are high-performance Type 1+2 surge protectors designed to provide comprehensive protection for photovoltaic (PV) systems and DC electrical installations. These advanced SPDs safeguard your electrical infrastructure from power surges, lightning strikes, and transient overvoltages, ensuring maximum system reliability and longevity.
With a nominal discharge current of 20kA and a maximum discharge capacity of 50kA, these devices effectively suppress high-energy surges and lightning-induced transients. The OMYH9 Series offers fast response times (≤25ns), ensuring instantaneous surge protection to prevent electrical damage.
Designed for easy integration, these DC SPDs support screw terminal wiring (2.5–25mm²) and 35mm DIN rail mounting, making them ideal for industrial, commercial, and residential solar power applications.
Features
✔ Wide Voltage Compatibility – Available in 600Vdc to 1500Vdc models, suitable for various solar and DC electrical systems.
✔ High Surge Current Handling – Supports 20kA nominal discharge current (In) and 50kA maximum discharge current (Imax) for robust surge protection.
✔ Lightning Protection – 12.5kA lightning impulse current capability (10/350μs) ensures strong defense against direct lightning strikes.
✔ Low Voltage Protection Level – Maintains low residual voltage (≤2.6kV to ≤5.2kV) for enhanced safety.
✔ Rapid Response Time – ≤25ns response speed guarantees instantaneous suppression of transient surges.
✔ Short-Circuit Protection – 10kA short-circuit current rating, with 125A–160A gPV backup fuse for secure fault handling.
✔ Durable & Fire-Resistant Build – Made from UL94-V0 flame-retardant thermoplastic, ensuring high durability and safety.
✔ Easy Installation & Monitoring – Screw terminal connections, green/red fault indicators, and optional remote signal monitoring for seamless operation.
Why Choose OMYH9 Series DC SPD?
✔ Reliable Surge & Lightning Protection – Ideal for solar inverters, DC distribution systems, and industrial applications.
✔ Easy Installation & Maintenance – Pluggable design with secure screw terminals for quick setup.
✔ Certified for Global Safety Standards – Complies with IEC 61643-11 and UL requirements.
✔ Remote Monitoring (Optional) – Enables real-time system monitoring and fault detection.
For high-performance surge protection, choose the OMYH9 Series DC SPD—designed for efficiency, durability, and safety.
Parameter
| Type | OMYH9-DC600 | OMYH9-DC800 | OMYH9-DC1000 | OMYH9-DC1200 | OMYH9-DC1500 | |
| Product Description | Type1+2 Surge Ptotective Device | |||||
| Maximum Continuous Operating Voltage | Ucpv | 600Vdc | 800Vdc | 1000Vdc | 1200Vdc | 1500Vdc |
| Nominal Discharge Current(8/20μs) | In | 20kA | ||||
| Maximum Discharge Current(8/20μs) | Imax | 50kA | ||||
| Lightning Impulse Current(10/350μs) | limp | 12.5kA | 12.5kA | 9kA | 6.25kA | 6.25kA |
| Total discharge current for multipole SPD(10/350μs) | Itotal | 25kA | 25kA | 18kA | 12.5kA | 12.5kA |
| Voltage Protection Level | Up | ≤2.6kV | ≤3.2kV | ≤3.8kV | ≤4.5kV | ≤5.2kV |
| Response Time | tA | ≤25ns | ||||
| Short-circuit current rating | Iscpv | 10A | ||||
| heat tripping device | insertion | |||||
| Max. Backup Fuse | 125A~160A gPV FUSE | |||||
| Mechanical properties | ||||||
| Product size | see the photo as below | |||||
| Wiring method | screw terminal 2.5-25mm² | |||||
| Normal/Fault display | green/red | |||||
| Maximum remote signal load voltage/current | 250V/0.5A[AC],30V/3A[DC] | |||||
| Maximum cross-sectional area of remote signal connection line | 1.5mm2 | |||||
| Installation | 35mm DIN Rail | |||||
| Operating Temperature range | Tu | -40-+85° | ||||
| Protection level | IP20 | |||||
| Enclosure material | Thermoplastic material, compliant with UL94-V0 | |||||
Certification
FAQ
What kind of environments is the surge protector suitable for?
What is the response time of the surge protective device?
The SPD offers an extremely fast response time of ≤25ns, ensuring your DC systems are protected from instantaneous surges and that the devices respond almost immediately to any surge event.
What is the installation process for the surge protective device?
The surge protectors are designed for easy installation on a 35mm DIN rail and feature screw terminal wiring for conductors between 2.5–25mm², simplifying the connection process for both industrial and residential applications.
How do the surge protectors protect against lightning strikes?
The SPD has a lightning impulse current rating of up to 12.5kA for 10/350μs, which helps protect against lightning strikes and large surges, diverting harmful currents safely away from your electrical equipment.
What is the maximum voltage the SPD can handle?
The SPD can handle a maximum continuous operating voltage of 600Vdc to 1500Vdc, making it suitable for a wide range of solar power systems and other DC applications.
What is a Type 1+2 surge protective device?
A Type 1+2 SPD provides both direct lightning strike protection (Type 1) and protection from residual and induced surges (Type 2). The OMYH9 series is designed to protect photovoltaic systems and DC electrical systems from both types of surges.
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