Product Description
The MYH6.25 Series DC Surge Protective Devices (SPD) are Type 1+2 surge protectors engineered for photovoltaic (PV) systems and DC electrical networks. These devices deliver comprehensive protection against lightning strikes, voltage surges, and high-frequency residual currents, ensuring the stability and safety of your solar power infrastructure.
Designed for maximum reliability, the MYH6.25 series features a maximum continuous operating voltage of up to 1500Vdc, with nominal discharge current ratings of 20kA and maximum discharge current capabilities of 50kA.
Certified for Safety – Built with UL94-V0-compliant flame-retardant materials and conforming to IEC 61643-31 standards.
Features
✔ Type 1+2 Protection – Effectively safeguards DC electrical systems against both direct lightning surges and indirect transient overvoltages.
✔ High Surge Capacity – Handles 20kA nominal discharge current and 50kA maximum discharge current for stable power protection.
✔ Rapid Response Time – Reacts in ≤25ns, ensuring instantaneous voltage suppression.
✔ Advanced Lightning Protection – Withstands impulse currents up to 12.5kA (10/350µs) to shield your PV system.
✔ Low Voltage Protection Level – Reduces residual voltage impact, extending solar system lifespan.
✔ Thermal Disconnection – A built-in heat tripping mechanism prevents overheating for safe operation.
✔ Pluggable & DIN Rail Mountable – Enables quick installation and easy maintenance.
✔ Remote Signal Monitoring (Optional) – Allows for real-time surge protection tracking.
Why Choose MYH6.25 Series DC SPD?
✔ Reliable DC Lightning Protection – Designed for solar power systems, battery storage, and industrial DC applications.
✔ Fast Installation & Maintenance – Pluggable module with DIN rail mounting.
✔ Certified for Safety – Meets IEC 61643-31 and UL standards.
✔ Remote Monitoring (Optional) – Enables real-time surge protection tracking.
For advanced DC surge protection, choose the MYH6.25 Series DC SPD—built for efficiency, durability, and safety.
Parameter
| Type | OMYH6.25-DC600 | OMYH6.25-DC800 | OMYH6.25-DC1000 | OMYH6.25-DC1200 | OMYH6.25-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 | 6.25kA | 6.25kA | 6.25kA | 5kA | 3kA |
| Total discharge current for multipole SPD(10/350μs) | Itotal | 12.5kA | 12.5kA | 12.5kA | 10kA | 6kA |
| Voltage Protection Level | Up | ≤2.6kV | ≤3.2kV | ≤3.8kV | ≤4.5kV | ≤5.2kV |
| Response Time | tA | ≤25ns | ||||
| Short-circuit current rating | Iscpv | 10kA | ||||
| heat tripping device | insertion | |||||
| Max. Backup Fuse | 125A gPV FUSE | |||||
| Mechanical properties | ||||||
| Product size | see the photo 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] | |||||
| The maximum cross-sectional area of the 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
What kind of environments is the surge protector suitable for?
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.
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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