OOHMAGE MDH12.5 T1+T2 Surge Protective Device – Smart Surge Protection for Every Distribution Board
When it comes to electrical distribution boards, protecting sensitive components from lightning strikes and transient overvoltages is non-negotiable. The OOHMAGE MDH12.5 Surge Protective Device combines the power of a Type 1+2 AC SPD surge suppressor and a high-capacity surge protector, delivering industry-leading defense across residential, commercial, and industrial setups.
Engineered for Maximum Surge Protection
This Type 1+2 surge protection device (SPD) is built to IEC/EN 61643-11 and GB/T 18802.11 standards. It not only shields against high-energy lightning surges, but also reduces risk from low-voltage transients that can damage your systems over time.
⭐ Key Features:
Dual-Stage Protection (Type 1+2): Combines whole house surge protector functions with enhanced equipment-level shielding.
High Discharge Capability: Handles 20kA nominal discharge current and up to 50kA max for reliable safety.
MOV-Based Surge Suppressor: Advanced varistor technology ensures fast and efficient clamping.
Low Residual Voltage: Limits stress on connected electronics and extends lifespan.
Thermal Cut-Off Mechanism: Activates disconnection in high-heat fault conditions.
LED Status Monitor: Visual cues (Green/Red) for fault and operation indication.
Remote Signaling Option: Seamless integration into smart monitoring panels.
Waterproof Housing (IP20): Flame-retardant, DIN rail mountable, and built for compact spaces.
Wide Applications of This Surge Suppressor
Ideal for use in:
Home Distribution Boards – Protects household circuits and appliances.
Commercial Panel Systems – Reliable surge protection in offices, hotels, and malls.
Industrial Distribution Boards – Fortifies power grids in factories, data centers, and production lines.
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 distribution board safety delivers long-term peace of mind.
Ideal for:
Contractors looking for bulk surge suppressors
Panel builders needing compact DIN-rail surge protectors
Retailers sourcing customizable wholesale SPD devices
Certifications & Compliance
TÜV, CE, UKCA, CB
RoHS & REACH Compliant
IEC/EN 61643-11 Certified
📞 Ready to Equip Your Electrical System?
Don’t wait until a surge fries your circuits. Secure your distribution board with an OOHMAGE surge protector today. Bulk pricing and custom OEM/ODM options available. Request a quote now!
Specifications
Technical Data | ||||
Model | MDH12.5-275 | MDH12.5-320 | MDH12.5-385 | MDH12.5-440 |
SPD Type | Type 1+2 | |||
Technology | MOV (Metal Oxide Varistors) | |||
Max. continuous operating voltage [Uc] | 275Vac | 320Vac | 385Vac | 440Vac |
Temporary Overvoltage Test Value TOV-5s(Tolerance) [Ut] | 335Vac | 335Vac | 500Vac | 580Vac |
Temporary Overvoltage Test Value TOV-120min(Disconnection) [Ut] | 440Vac | 440Vac | 650Vac | 770Vac |
Nominal discharge curent(8/20us) [ln] | 20kA | |||
Max.discharge current (8/20us) [lmax] | 50KA | |||
Impulse Discharge Current(10/350μs) [limp] | 12.5kA | 12.5kA | 9kA | 9kA |
Voltage Protection level [Up] | ≤1.5kV | ≤1.6kV | ≤1.8kV | ≤2.0kV |
Short-circuit current rating [Isccr] | 25kA | |||
Response time [tA] | ≤25ns | |||
Thermal Disconnection Device | Insertion | |||
Max. Backup Fuse | 160A~200A gG Fuse | |||
Mechanical Data | ||||
SPD configuration | AC system | |||
Plugable | Available | |||
Mounting | 35mm DIN rail | |||
Enclosure Material | Thermoplastic,conform to UL94 V-0 | |||
0perating Temperature Range | -40°C…-85°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 | |||
Certificate | TUV,CE,UKCA,CB,IEC,RoHS,REACH,CQC | |||
Packing Data | ||||
Pole | 1+0 | 2+0/1+1 | 3+0 | 4+0/3+1 |
Weight (1 piece) | 180g | 280g | 380g | 480g |
Package Quantity(PCS/CTN) | 108 | 54 | 36 | 27 |
CTN Size | 35.8*31*18cm | |||
Certification
FAQs
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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