OOHMAGE MDH6.25 DC Surge Protective Device – Advanced Surge Protection for Solar and Industrial DC Systems
Protecting your DC electrical systems from lightning-induced surges and transient overvoltages is crucial. The OOHMAGE MDH6.25 DC Surge Protective Device (SPD) offers robust Type 1+2 surge protection, ensuring the safety and efficiency of photovoltaic (PV) systems, industrial DC circuits, and battery storage infrastructures.
Engineered for Maximum DC Surge Protection
This Type 1+2 DC surge protection device is designed to meet IEC/EN 61643-11 and GB/T 18802.31 standards. It effectively shields against high-energy lightning surges and reduces risks from low-voltage transients that can damage your systems over time.
⭐ Key Features:
Dual-Stage Protection (Type 1+2): Combines capabilities of both surge suppressor and surge protector for comprehensive defense.
High Discharge Capability: Handles 20kA nominal discharge current and up to 40kA maximum discharge current for reliable safety.
MOV-Based Surge Suppression: Advanced Metal Oxide Varistor (MOV) technology ensures fast and efficient clamping.
Low Residual Voltage: Limits stress on connected electronics, enhancing system longevity.
Thermal Cut-Off Mechanism: Activates disconnection in high-heat fault conditions to prevent overheating.
LED Status Monitor: Visual indicators (Green/Red) for fault and operation status.
Remote Signaling Option: Seamless integration into smart monitoring panels for real-time system status tracking.
Compact & Durable Design: DIN rail mountable, constructed with flame-retardant thermoplastic (UL94-V0).
🏢 Wide Applications of This DC Surge Protector
Ideal for use in:
Solar Energy Systems – Protects photovoltaic panels and inverters from surge damage.
Industrial DC Circuits – Ensures reliable surge protection in factories and production lines.
Battery Storage Systems – Safeguards energy storage units against voltage spikes.
🧩 Why Choose OOHMAGE Surge Protection Devices?
OOHMAGE stands as a trusted surge protection manufacturer, combining quality, affordability, and performance. With advanced surge suppression technology and rigorous testing, we ensure that your investment in DC system safety delivers long-term peace of mind.
💼 Ideal for:
Solar Installers – Seeking reliable surge protection for PV systems.
Industrial Electricians – Requiring robust surge suppressors for DC circuits.
Energy Storage Integrators – Needing dependable surge protection for battery systems.
✅ Certifications & Compliance
TÜV, CE, UKCA, CB
RoHS & REACH Compliant
IEC/EN 61643-11 Certified
📞 Ready to Protect Your DC Systems?
Don’t wait until a surge compromises your operations. Secure your DC systems with an OOHMAGE surge protector today. Bulk pricing and custom OEM/ODM options available. Request a quote now!
Specifications
Technical Data | |||||
Model | MDH6.25-DC600 | MDH6.25-DC800 | MDH6.25-DC1000 | MDH6.25-DC1200 | MDH6.25-DC1500 |
SPD Type | Type 1+2 | ||||
Technology | MOV (Metal Oxide Varistors) | ||||
Max. continuous operating voltage [Ucpv] | 600Vdc | 800Vdc | 1000Vdc | 1200Vdc | 1500Vdc |
Nominal discharge curent(8/20us) [ln] | 20kA | ||||
Max.discharge current (8/20us) [lmax] | 40KA | ||||
Impulse Discharge Current(10/350us) [limp] | 6.25kA | 6.25kA | 6.25kA | 5kA | 3kA |
Impulse Discharge Current(10/350us) [ltotal] | 12.5kA | 12.5kA | 12.5kA | 10kA | 6kA |
Voltage Protection level [Up] | ≤2.6kV | ≤3.2kV | ≤3.8kV | ≤4.5kV | ≤5.2kV |
Short-circuit current rating [Isccr] | 25kA | ||||
Response time [tA] | ≤25ns | ||||
Thermal Disconnection Device | Insertion | ||||
Max. Backup Fuse | 63A gL/gG FUSE | ||||
Mechanical Data | |||||
SPD Type | Type 1+2 | ||||
SPD configuration | DC system | ||||
Plugable | Available | ||||
Mounting | 35mm DIN rail | ||||
Enclosure Material | Thermoplastic,conform to UL94 V-0 | ||||
0perating Temperature Range | -40°C…-80°C | ||||
Protection rating | IP20 | ||||
Normal/fault Display | Green / Red | ||||
Remote Signal | Optional | ||||
Wiring for remote signaling | Max.1.5mm solid/flexible | ||||
Max.Voltage / Current for remote signaling | 250V/0.1A;125V/0.2A;75V/0.5A | ||||
Standards | IEC/EN 61643-11,GB/T 18802.31 | ||||
Certificate | TUV,CE,UKCA,CB,IEC,RoHS,REACH,CQC | ||||
Packing Data | |||||
3Pole | 3+0/3P | ||||
Weight (1 piece) | 400g | ||||
Package Quantity | 48 PCS/CTN | ||||
CTN Size | 46*30.5*15.9cm | ||||
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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