{"id":7130,"date":"2025-09-24T03:02:08","date_gmt":"2025-09-24T03:02:08","guid":{"rendered":"https:\/\/www.oohmage.com\/?post_type=product&p=7130"},"modified":"2026-07-10T05:56:25","modified_gmt":"2026-07-10T05:56:25","slug":"omdh9-dc-t2-dc-spd","status":"publish","type":"product","link":"https:\/\/www.oohmage.com\/vi\/dc-surge-protection-device\/omdh9-dc-t2-dc-spd\/","title":{"rendered":"OMDH9-DC T2 DC SPD \u2013 Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 ch\u1ed1ng s\u00e9t lan truy\u1ec1n DC"},"content":{"rendered":"

Description<\/h2>\n
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The OOHMAGE MDH9 Series DC SPD Surge Protection Device provides superior protection for DC electrical systems, ensuring that sensitive equipment is safeguarded from voltage spikes, power surges, and lightning strikes. With a nominal discharge current of 20kA and a maximum discharge current of 50kA, the MDH9 series is an ideal solution for photovoltaic systems, battery storage setups, and industrial DC circuits. Engineered with Metal Oxide Varistor (MOV) protection, this Type 1+2 DC SPD is built to withstand extreme surge events, ensuring long-term power system reliability.<\/p>\n

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Features<\/h2>\n

\u2714 Type 1+2 DC Surge Protection Device<\/strong> \u2013 Offers comprehensive surge suppression against direct lightning strikes and indirect electrical surges in DC power systems.
\n\u2714 Advanced Metal Oxide Varistor (MOV) Protection<\/strong> \u2013 Provides efficient overvoltage protection, rapidly suppressing surge energy and ensuring low residual voltage.
\n\u2714 20kA Nominal Discharge Current<\/strong> \u2013 Ensures effective surge protection, preventing electrical damage in solar power systems and industrial applications.
\n\u2714 50kA Maximum Discharge Current<\/strong> \u2013 Handles severe surge events, maintaining system stability and equipment longevity.
\n\u2714 Impulse Discharge Current (Iimp): <\/strong>Up to 12.5kA \u2013 Protects against high-energy transient surges, keeping DC circuits secure.
\n\u2714 Low Residual Voltage Design<\/strong> \u2013 Reduces post-surge voltage levels, safeguarding sensitive DC equipment from overvoltage damage.
\n\u2714 Pluggable DIN Rail DC SPD<\/strong> \u2013 Easy to install and maintain, with a pluggable design that allows quick replacement of protection modules.
\n\u2714 Built-in Thermal Disconnection Device<\/strong> \u2013 Ensures safe disconnection in the event of overheating, preventing further damage.
\n\u2714 Remote Signal Option<\/strong> \u2013 Supports real-time surge monitoring, enhancing system control.
\n\u2714 DIN Rail Mounting (35mm)<\/strong> \u2013 Allows for quick and secure installation in electrical panels.
\n\u2714 Certified for Global Standards<\/strong> \u2013 Meets IEC 61643-31, EN 61643-31, and GB\/T 18802.31 safety regulations.
\n\u2714 Reliable & High-Quality Build<\/strong> \u2013 Certified by TUV, CE, UKCA, CB, RoHS, and REACH, ensuring dependable surge protection for industrial and residential applications.<\/p>\n<\/div>\n

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Why Choose OOHMAGE?<\/h3>\n

\u2714 Industry-Leading Surge Protection Manufacturer<\/strong> \u2013 OOHMAGE is a trusted surge protection manufacturer known for high-performance, durable surge protective devices.
\n\u2714 Bulk Pricing & Wholesale Availability<\/strong> \u2013 We offer cost-effective bulk surge protection device solutions for solar, battery storage, and industrial applications.
\n\u2714 Trusted Quality & Compliance<\/strong> \u2013 Fully certified under IEC 61643-31, EN 61643-31, and global safety standards (TUV, CE, UKCA, CB, RoHS, and REACH).
\n\u2714 Reliable & Efficient<\/strong> \u2013 Designed for fast, easy installation, reducing maintenance time and operational disruptions.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n

Specifications<\/h2>\n
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Technical Data<\/b><\/div>\n<\/td>\n<\/tr>\n
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Model<\/div>\n<\/td>\n
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MDH9-DC600<\/div>\n<\/td>\n
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MDH9-DC800<\/div>\n<\/td>\n
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MDH9-DC1000<\/div>\n<\/td>\n
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MDH9-DC1200<\/div>\n<\/td>\n
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MDH9-DC1500<\/div>\n<\/td>\n<\/tr>\n
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SPD Type<\/div>\n<\/td>\n
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Type 1+2<\/div>\n<\/td>\n<\/tr>\n
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Technology<\/div>\n<\/td>\n
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MOV (Metal Oxide Varistors)<\/div>\n<\/td>\n<\/tr>\n
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Max. continuous operating voltage [Ucpv]<\/div>\n<\/td>\n
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600Vdc<\/div>\n<\/td>\n
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800Vdc<\/div>\n<\/td>\n
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1000Vdc<\/div>\n<\/td>\n
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1200Vdc<\/div>\n<\/td>\n
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1500Vdc<\/div>\n<\/td>\n<\/tr>\n
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Nominal discharge curent(8\/20us) [ln]<\/div>\n<\/td>\n
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20kA<\/div>\n<\/td>\n<\/tr>\n
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Max.discharge current (8\/20us) [lmax]<\/div>\n<\/td>\n
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40KA<\/div>\n<\/td>\n<\/tr>\n
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Impulse Discharge Current(10\/350us) [limp]<\/div>\n<\/td>\n
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12.5kA<\/div>\n<\/td>\n
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12.5kA<\/div>\n<\/td>\n
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9kA<\/div>\n<\/td>\n
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6.25kA<\/div>\n<\/td>\n
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6.25kA<\/div>\n<\/td>\n<\/tr>\n
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Impulse Discharge Current(10\/350us) [ltotal]<\/div>\n<\/td>\n
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25kA<\/div>\n<\/td>\n
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25kA<\/div>\n<\/td>\n
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18kA<\/div>\n<\/td>\n
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12.5A<\/div>\n<\/td>\n
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12.5kA<\/div>\n<\/td>\n<\/tr>\n
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Voltage Protection level [Up]<\/div>\n<\/td>\n
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\u22642.6kV<\/div>\n<\/td>\n
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\u22643.2kV<\/div>\n<\/td>\n
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\u22643.8kV<\/div>\n<\/td>\n
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\u22644.5kV<\/div>\n<\/td>\n
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\u22645.2kV<\/div>\n<\/td>\n<\/tr>\n
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Short-circuit current rating [Isccr]<\/div>\n<\/td>\n
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25kA<\/div>\n<\/td>\n<\/tr>\n
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Response time [tA]<\/div>\n<\/td>\n
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\u226425ns<\/div>\n<\/td>\n<\/tr>\n
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Thermal Disconnection Device<\/div>\n<\/td>\n
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Insertion<\/div>\n<\/td>\n<\/tr>\n
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Max. Backup Fuse<\/div>\n<\/td>\n
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125A gL\/gG FUSE<\/div>\n<\/td>\n<\/tr>\n
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Mechanical Data<\/b><\/div>\n<\/td>\n<\/tr>\n
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SPD Type<\/div>\n<\/td>\n
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Type 1+2<\/div>\n<\/td>\n<\/tr>\n
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SPD configuration<\/div>\n<\/td>\n
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DC system<\/div>\n<\/td>\n<\/tr>\n
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Plugable<\/div>\n<\/td>\n
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Available<\/div>\n<\/td>\n<\/tr>\n
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Mounting<\/div>\n<\/td>\n
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35mm DIN rail<\/div>\n<\/td>\n<\/tr>\n
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Enclosure Material<\/div>\n<\/td>\n
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Thermoplastic,conform to UL94 V-0<\/div>\n<\/td>\n<\/tr>\n
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0perating Temperature Range<\/div>\n<\/td>\n
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-40\u00b0C…-80\u00b0C<\/div>\n<\/td>\n<\/tr>\n
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Protection rating<\/div>\n<\/td>\n
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IP20<\/div>\n<\/td>\n<\/tr>\n
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Normal\/fault Display<\/div>\n<\/td>\n
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Green \/ Red<\/div>\n<\/td>\n<\/tr>\n
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Remote Signal<\/div>\n<\/td>\n
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Optional<\/div>\n<\/td>\n<\/tr>\n
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Wiring for remote signaling<\/div>\n<\/td>\n
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Max.1.5mm solid\/flexible<\/div>\n<\/td>\n<\/tr>\n
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Max.Voltage \/ Current for remote signaling<\/div>\n<\/td>\n
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250V\/0.1A;125V\/0.2A;75V\/0.5A<\/div>\n<\/td>\n<\/tr>\n
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Standards<\/div>\n<\/td>\n
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IEC\/EN 61643-11,GB\/T 18802.31<\/div>\n<\/td>\n<\/tr>\n
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Certificate<\/div>\n<\/td>\n
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TUV,CE,UKCA,CB,IEC,RoHS,REACH,CQC<\/div>\n<\/td>\n<\/tr>\n
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Packing Data<\/b><\/div>\n<\/td>\n<\/tr>\n
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3Pole<\/div>\n<\/td>\n
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3+0\/3P<\/div>\n<\/td>\n<\/tr>\n
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Weight (1 piece)<\/div>\n<\/td>\n
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450g<\/div>\n<\/td>\n<\/tr>\n
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Package Quantity<\/div>\n<\/td>\n
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36 PCS\/CTN<\/div>\n<\/td>\n<\/tr>\n
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CTN Size<\/div>\n<\/td>\n
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35.8*31*18cm<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n

Certification<\/h2>\n

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What kind of environments is the surge protector suitable for?<\/h3>\n
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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\u00b0C to +85\u00b0C, ensuring performance in diverse conditions.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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What is the response time of the surge protective device?<\/h3>\n
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The SPD offers an extremely fast response time of \u226425ns, ensuring your DC systems are protected from instantaneous surges and that the devices respond almost immediately to any surge event.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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What is the installation process for the surge protective device?<\/h3>\n
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The surge protectors are designed for easy installation on a 35mm DIN rail and feature screw terminal wiring for conductors between 2.5\u201325mm\u00b2, simplifying the connection process for both industrial and residential applications.<\/p>\n

How do the surge protectors protect against lightning strikes?<\/h3>\n<\/div>\n<\/div>\n<\/div>\n
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The SPD has a lightning impulse current rating of up to 12.5kA for 10\/350\u03bcs, which helps protect against lightning strikes and large surges, diverting harmful currents safely away from your electrical equipment.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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What is the maximum voltage the SPD can handle?<\/h3>\n
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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.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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What is a Type 1+2 surge protective device?<\/h3>\n
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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.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\u2714 B\u1ea3o v\u1ec7 ch\u1ed1ng s\u00e9t lan truy\u1ec1n DC lo\u1ea1i 1+2<\/strong>
\u2714 C\u00f4ng ngh\u1ec7 MOV<\/strong>
\u2714 D\u00f2ng x\u1ea3 danh \u0111\u1ecbnh 20 kA<\/strong>\u00a0
\u2714 D\u00f2ng x\u1ea3 t\u1ed1i \u0111a 50 kA<\/strong>\u00a0
\u2714 D\u00f2ng x\u1ea3 xung (Iimp): <\/strong>T\u1ed1i \u0111a 12,5 kA
\u2714 \u0110i\u1ec7n \u00e1p d\u01b0 th\u1ea5p<\/strong>
\u2714 Thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 th\u00e1o l\u1eafp<\/strong>
\u2714 Thi\u1ebft b\u1ecb ng\u1eaft k\u1ebft n\u1ed1i nhi\u1ec7t<\/strong>
\u2714 T\u00f9y ch\u1ecdn t\u00edn hi\u1ec7u t\u1eeb xa<\/strong>
\u2714 G\u1eafn tr\u00ean thanh DIN (35 mm)<\/strong>
\u2714 Tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf<\/strong>
\u2714 \u0110\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 tin c\u1eady<\/strong><\/p>","protected":false},"featured_media":7239,"template":"","meta":{"_acf_changed":false,"rank_math_title":"","rank_math_description":"The OOHMAGE MDH9 Series DC SPD provides superior surge protection for DC electrical systems, ensuring that sensitive equipment is safeguarded from voltage spike","rank_math_focus_keyword":"DC spd, DC Surge Protection Device, DIN Rail DC SPD, DC Lightning Surge Protector, Type 1+2 DC SPD, Metal Oxide Varistor (MOV) Protection, Overvoltage Protection for DC Systems","_product_sku":"","_product_attributes":[],"_product_faqs":[],"_product_image_gallery":""},"product_cat":[61,52],"product_tag":[],"class_list":["post-7130","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-outdoor-surge-protector","product_cat-dc-surge-protection-device"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.oohmage.com\/vi\/wp-json\/wp\/v2\/product\/7130","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oohmage.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.oohmage.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oohmage.com\/vi\/wp-json\/wp\/v2\/media\/7239"}],"wp:attachment":[{"href":"https:\/\/www.oohmage.com\/vi\/wp-json\/wp\/v2\/media?parent=7130"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.oohmage.com\/vi\/wp-json\/wp\/v2\/product_cat?post=7130"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.oohmage.com\/vi\/wp-json\/wp\/v2\/product_tag?post=7130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}