Description
Protect your DC electrical systems from harmful voltage spikes and transient surges with the OOHMAGE MDN40-DC Type 2 DC SPD Surge Protection Device (SPD). Designed with Metal Oxide Varistor (MOV) technology, a pluggable design, and low residual voltage, this high-performance surge protector ensures maximum system safety and easy maintenance for solar power installations, industrial DC circuits, and energy storage applications. Whether you’re securing a photovoltaic system or critical DC power infrastructure, the MDN40-DC SPD provides reliable long-term protection.
Features
✔ Type 2 Surge Protection – Provides secondary defense against transient surges, complementing primary surge protectors (Type 1).
✔ 20kA Nominal Discharge Current (In) – Handles moderate surges, ensuring equipment protection.
✔ 40kA Maximum Discharge Current (Imax) – Absorbs large surge events, preventing equipment damage.
✔ MOV Technology – Uses Metal Oxide Varistors to clamp excessive voltage and safeguard sensitive components.
✔ Low Residual Voltage Design – Minimizes post-surge voltage, reducing the risk to DC circuits.
✔ Pluggable Design with Thermal Disconnection – Ensures quick installation, easy maintenance, and automatic thermal cutoff for safety.
✔ Status Indication (Green/Red LED) – Provides clear visual status updates for normal operation and fault detection.
✔ Remote Signaling Option – Allows real-time surge monitoring, integrating with DC system management.
✔ DIN Rail Mountable (35mm) – Universal mounting for fast and secure installation in electrical cabinets.
✔ Global Standards Compliance – Meets IEC 61643-31, EN 61643-31, and GB/T 18802.31 standards.
✔ Certified for International Safety – CE, TUV, UKCA, and CB certified for reliable performance in solar energy and industrial DC applications.
Why Choose OOHMAGE MDN40-DC SPD?
✔ Industry-Leading Surge Protection – Provides secondary surge protection, reducing system failures caused by voltage fluctuations.
✔ Trusted Surge Protection Manufacturer – OOHMAGE is a leading supplier of DC surge protection solutions for solar power systems and industrial applications.
✔ Bulk Order & Wholesale Availability – Cost-effective bulk pricing for large-scale energy projects and contractors.
✔ Globally Certified & Compliant – Meets IEC 61643-31, CE, TUV, UKCA, and CB standards, ensuring high-quality protection.
✔ Optimized for Photovoltaic and Industrial DC Systems – Specially designed for solar power protection, battery storage systems, and DC power circuits.
Parameter
Technical Data | |||
Model | MDN40-DC1000 | MDN40-DC1200 | MDN40-DC1500 |
SPD Type | Type 2 | ||
Technology | MOV (Metal Oxide Varistors) | ||
Max. continuous operating voltage [Ucpv] | 1000Vdc | 1200Vdc | 1500Vdc |
Nominal discharge curent(8/20us) [ln] | 20kA | ||
Max.discharge current (8/20us) [lmax] | 40KA | ||
Voltage Protection level [Up] | ≤3.8kV | ≤4.5kV | ≤5.2kV |
Short-circuit current rating [Iscpv] | 25kA | ||
Response time [tA] | ≤25ns | ||
Thermal Disconnection Device | Insertion | ||
Max. Backup Fuse | 63A gPV FUSE | ||
Mechanical Data | |||
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 signal | Max.1.5mm solid/flexible | ||
Max.Voltage / Current for remote signal | 250V/0.1A;125V/0.2A;75V/0.5A | ||
Standards | IEC/EN 61643-31,GB/T 18802.31 | ||
Certificate | TUV,CE,UKCA,CB,IEC,RoHS,REACH,CQC | ||
Packing Data | |||
Pole | 3+0/3P | ||
Weight (1 piece) | 400g | ||
Package Quantity | 48 PCS/CTN | ||
CTN Size | 46*30.5*15.9cm | ||
Certification
FAQ
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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