{"id":1660,"date":"2026-05-08T11:54:25","date_gmt":"2026-05-08T03:54:25","guid":{"rendered":"https:\/\/sayoon-dc.com\/?post_type=product&p=1660"},"modified":"2026-07-16T18:01:01","modified_gmt":"2026-07-16T10:01:01","slug":"sev300ah-high-voltage-epoxy-resin-sealed-dc-contactor","status":"publish","type":"product","link":"https:\/\/sayoon-dc.com\/es\/product\/sev300ah-high-voltage-epoxy-resin-sealed-dc-contactor\/","title":{"rendered":"SEV300AH High Voltage Epoxy Resin Sealed DC Contactor"},"content":{"rendered":"

FEATURES<\/strong><\/h2>\n
\n
Suitable for switch control of new energy electric vehicles, charging facilities, photovoltaics, wind power generation systems, automotive air conditioners, communication power supplies, UPS power supplies and other electrical control circuits. This product has the characteristics of small size, large load capacity, no sparks, long service life and simple maintenance, and is deeply loved by users.<\/div>\n
<\/div>\n
1. DC high-voltage power supply: The product cavity is filled with rare mixed gases and has good arc cooling capabilities.<\/div>\n
2. Control load capacity: Supports 30A-1000A, and the operating voltage range is 5-1000VDC.<\/div>\n
3. Safety: Using insulating structure, it can work in flammable or hazardous environments, and the coils and contacts will not be oxidized or polluted.<\/div>\n
4. Small size, light weight, low power consumption: Compared with similar products, it has obvious advantages.<\/div>\n
<\/div>\n
This product complies with JB2286-78, JB3974-85, YD\/585-92, YD\/T512-92 and other standard requirements; after inspection by the factory and relevant testing units, it conforms to the standard specifications. It has been used by users for many years to meet user needs to the greatest extent. The quality reliable.<\/div>\n<\/div>\n

SAYOON MODEL IMPLICATION<\/strong><\/h2>\n
<\/div>\n
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\n\n\n\n\n
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SEV<\/p>\n<\/td>\n

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300<\/p>\n<\/td>\n

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A<\/p>\n<\/td>\n

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H<\/p>\n<\/td>\n

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X<\/p>\n<\/td>\n

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L<\/p>\n<\/td>\n

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-\u25a1<\/p>\n<\/td>\n

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\u25a0<\/p>\n<\/td>\n

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\/12V<\/p>\n<\/td>\n

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\n<\/td>\n<\/tr>\n

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1<\/p>\n<\/td>\n

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2<\/p>\n<\/td>\n

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3<\/p>\n<\/td>\n

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4<\/p>\n<\/td>\n

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5<\/p>\n<\/td>\n

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6<\/p>\n<\/td>\n

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7<\/p>\n<\/td>\n

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8<\/p>\n<\/td>\n

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9<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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1<\/p>\n<\/td>\n

Product type<\/b><\/b><\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
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2<\/p>\n<\/td>\n

Rated current<\/b><\/b><\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
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3<\/p>\n<\/td>\n

Circuit structure:<\/b>\u00a0A<\/b>-Normally open; B<\/b>-Normally closed; F<\/b>-Normally open with one auxiliary switch (the auxiliary switch and main contact have the same structure); G-One normally closed with one auxiliary (auxiliary switch and main contact have the same structure). (for other auxiliary switch structures, add 2 or 3 numbers after the model to describe the auxiliary switch structure)<\/td>\n<\/tr>\n
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4<\/p>\n<\/td>\n

Coil type: D<\/b>-Single coil; H<\/b>-With coil economizer; K<\/b>-Two joint magnetic retention (Single coil, Two joint self-locking); 2K<\/b>-Three joint magnetic retention (Double coil, Three joint self-locking); P<\/b>-Signal control<\/td>\n<\/tr>\n
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5<\/p>\n<\/td>\n

Coil outgoing mode: X<\/b>-Wire (390mm); P<\/b>-Spade terminals (4.8); W<\/b>-Thread (M4); O<\/b>-Other<\/td>\n<\/tr>\n
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6<\/p>\n<\/td>\n

Mounting bracket type: L<\/b>-Vertical (default)<\/td>\n<\/td>\n<\/tr>\n
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7<\/p>\n<\/td>\n

None<\/b>: Auxiliary switch and main contact have the same structure (default); -2<\/b>: The structure of auxiliary switch and main contact is opposite;\u00a0-3<\/b>: Special auxiliary switch structure<\/td>\n<\/tr>\n
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8<\/p>\n<\/td>\n

Other special functions: V<\/b>-With capacitive type load; N<\/b>-No polarity<\/td>\n<\/tr>\n
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9<\/p>\n<\/td>\n

Coil rated voltage:<\/b>\u00a012V, 24V, 48V, 9-36V, 48-72V etc.<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

USES<\/strong><\/h2>\n
The utility model has the advantages that the utility model is provided with one normally open contact, which is suitable for charging piles, electric four wheeled vehicles, new energy vehicles, energy saving and environmental protection systems, road traffic lighting systems, programmable power supply and uninterruptible power supply equipment.<\/div>\n

TECHNICAL PARAMETERS: (Version 2.82)<\/strong><\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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\u00a0SAYOON Product Type<\/strong><\/p>\n<\/td>\n

\n

\u00a0SEV300AH<\/strong><\/p>\n<\/td>\n<\/tr>\n

\u00a0Contact form<\/td>\n\u00a01 NO(SPST-NO) or 1NC(SPST-NC)<\/td>\n<\/tr>\n
\u00a0Coil Rated voltage (DC V)<\/td>\n\u00a012-24V,36-48V,60-72V,9-36V etc.<\/td>\n<\/tr>\n
\u00a0Contact voltage (DC V)<\/td>\n\u00a05-1000V<\/td>\n<\/tr>\n
\u00a0Contact circuit rated load current (DC-1)<\/td>\n\u00a0300A<\/td>\n<\/tr>\n
\u00a0Typical voltage drop across contacts per 100A<\/td>\n\u00a0\u226f80mV<\/td>\n<\/tr>\n
\u00a0The cooling pull-in voltage at (20\u00b15)\u2103 (V)<\/td>\n\u00a0\u226f70%<\/td>\n<\/tr>\n
\u00a0The cooling drop-out voltage at (20\u00b15)\u2103 (V)<\/td>\n\u00a0\u226f35%,\u226e5%<\/td>\n<\/tr>\n
\u00a0Working voltage range of 40\u2103\u00a0coil<\/td>\n\u00a00.8-1.2Us<\/td>\n<\/tr>\n
\u00a0Drop-out time (n\/o contacts to open)<\/td>\n\u00a080ms<\/td>\n<\/tr>\n
\u00a0Pull-in time (n\/o contacts to close)<\/td>\n\u00a020ms<\/td>\n<\/tr>\n
\u00a0Maximum bounce time for contact connection<\/td>\n\u00a010ms<\/td>\n<\/tr>\n
\u00a0Maximum bounce time for contact disconnection<\/td>\n\u00a07ms<\/td>\n<\/tr>\n
\u00a0Insulation Resistance<\/td>\n\u00a0100M\u03a9<\/td>\n<\/tr>\n
\u00a0Electric strength to resist<\/td>\n\u00a050Hz\/60Hz 2200VAC 1minute<\/td>\n<\/tr>\n
\u00a0Typical fault currents which can be ruptured<\/td>\n\u00a01000A\/5ms at 48V DC<\/td>\n<\/tr>\n
\u00a0Coil power (W)<\/td>\n\u00a0H: Start 30-50, Keep 1.5-5<\/td>\n<\/tr>\n
\u00a0Temperature rise of coil (K)<\/td>\n\u00a0\u226445<\/td>\n<\/tr>\n
\u00a0Temperature rise on outgoing terminal (K)<\/td>\n\u00a0\u226465<\/td>\n<\/tr>\n
\u00a0Electrical life<\/td>\n\u00a020,000 times<\/td>\n<\/tr>\n
\u00a0Mechanical life<\/td>\n\u00a0300,000 times<\/td>\n<\/tr>\n
\u00a0Work specification<\/td>\n\u00a0Continuous<\/td>\n<\/tr>\n
\u00a0Contact material<\/td>\n\u00a0Alloy<\/td>\n<\/tr>\n
\u00a0Inrush time (max)<\/td>\n\u00a0130ms<\/td>\n<\/tr>\n
\u00a0Maximum switching current<\/td>\n\u00a02000A 320VDC\u00a0(more than once)<\/td>\n<\/tr>\n
\u00a0Maximum switching power<\/td>\n\u00a0640kW<\/td>\n<\/tr>\n
\u00a0Load terminal type<\/td>\n\u00a0M8 Screw<\/td>\n<\/tr>\n
\u00a0Coil terminal type<\/td>\n\u00a00.3 square silicone wire, 390mm long<\/td>\n<\/tr>\n
\u00a0Auxiliary contact rated load (optional)<\/td>\n\u00a03A\/30VDC<\/td>\n<\/tr>\n
\u00a0Testing organization certification<\/td>\n\u00a0CCC,CE,FCC,RoHS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Note:As regarding to the different using environments of customers which requires different focus of the functions,and in order to improve the comprehensive properties of our products,sayoon may adjust the coil parameters,temperature rise and so on. The above parameters are for reference only, For details, please refer to the guidelines for selection and use of the SAYOON DC contactor.<\/div>\n

LOAD CHARACTERISTIC CURVE<\/strong><\/h2>\n
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  • \"product<\/li>\n
  • \"product<\/li>\n<\/ul>\n

    INSTALLATION DIAGRAM<\/strong><\/h2>\n
    \"product<\/div>\n

    WIRING DIAGRAM<\/strong><\/h2>\n
    \"product<\/div>\n

    COIL TEMPERATURE CURVE<\/strong><\/h2>\n
    \"product<\/div>\n

    MECHANICAL ABILITY and USE of the ENVIRONMENT<\/strong><\/h2>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    \u00a0Contact lead M8 tightening torque (N.m)<\/td>\n\u00a0\u226f9.0 appropriate<\/td>\n<\/tr>\n
    \u00a0Coil lead mode<\/td>\n\u00a0Wire dipping tin (red positive and black negative)<\/td>\n<\/tr>\n
    \u00a0Ambient temperature<\/td>\n\u00a0-40~+85\u2103<\/td>\n<\/tr>\n
    \u00a0Relative humidity<\/td>\n\u00a0+20\u2103 98%<\/td>\n<\/tr>\n
    \u00a0Vibration freq. atthe fixed position<\/td>\n\u00a03G, 1\uff5e50Hz amplitude 0.5mm<\/td>\n<\/tr>\n
    \u00a0Concussion<\/td>\n\u00a0(60\uff5e100) time\/minute\u3001acceleration\u22644g<\/td>\n<\/tr>\n
    \u00a0Altitude<\/td>\n\u00a02000m<\/td>\n<\/tr>\n
    \u00a0Installation direction<\/td>\n\u00a0Random<\/td>\n<\/tr>\n
    \u00a0International Protection<\/td>\n\u00a0IP68<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    ORDER INSTRUCTION<\/strong><\/h2>\n
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    \n\n\n\n\n\n
    \n

    \u00a0SAYOON Product Type<\/strong><\/p>\n<\/td>\n

    		\n

    \u00a0SEV300AH<\/strong><\/p>\n<\/td>\n<\/tr>\n

    \u00a0U.N.W.<\/td>\n\u00a0409g<\/td>\n<\/tr>\n
    \u00a0Mounting bracket type<\/td>\n\u00a0L Vertical(default)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    When placing your order, please provide the following information: name, complete model number, control coil voltage specification, mounting frame type, whether auxiliary contacts are required and order quantity. For example: HV DC contactor SEV200AH-\u25a1-\u25a1\/24V 100 pieces, which means the rated load current is 200A, no auxiliary contacts, the default installation bracket, the control coil voltage is 24V, and the purchase quantity is 100 pieces. For products with special voltage specifications, special orders can be made if necessary.<\/div>","protected":false},"excerpt":{"rendered":"

    Looking for a high voltage epoxy resin sealed DC contactor? Check out SEV300AH for reliable and durable performance<\/p>","protected":false},"featured_media":1661,"template":"","meta":{"_gspb_post_css":""},"product_brand":[],"product_cat":[47],"product_tag":[],"class_list":["post-1660","product","type-product","status-publish","has-post-thumbnail","product_cat-sev-series-hv-dc-contactor","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/product\/1660","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/media\/1661"}],"wp:attachment":[{"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/media?parent=1660"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/product_brand?post=1660"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/product_cat?post=1660"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/product_tag?post=1660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}