{"id":1334,"date":"2026-05-08T11:52:35","date_gmt":"2026-05-08T03:52:35","guid":{"rendered":"https:\/\/sayoon-dc.com\/?post_type=product&p=1334"},"modified":"2026-07-15T11:06:12","modified_gmt":"2026-07-15T03:06:12","slug":"czw400a-normally-open-dc-contactor","status":"publish","type":"product","link":"https:\/\/sayoon-dc.com\/es\/product\/czw400a-normally-open-dc-contactor\/","title":{"rendered":"CZW400A Normally Open DC Contactor"},"content":{"rendered":"

FEATURES<\/span><\/strong><\/h2>\n
<\/div>\n
Normally open DC contactors not only play a key role in motor starting, but are also widely used in other occasions that require precise current control. For example, in automated production lines, normally open DC contactors can be used to control the start and stop of conveyor belts, pumps and other mechanical equipment to ensure the efficiency and safety of the production process. By using a normally open DC contactor, operators are able to effectively manage the starting and stopping sequence of the motor, ensuring smooth operation of the equipment and reducing the risk of equipment damage.<\/div>\n

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

\n

400A<\/p>\n<\/td>\n

\n

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

\n

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

\n

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

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

\n

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

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\/24V<\/p>\n<\/td>\n

\n

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

\n

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

\n

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

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

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

\n

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<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\n
\n\n\n\n\n\n\n\n\n\n\n
\n

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
\n

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

Auxiliary switch: None<\/b>-Without auxiliary switch;\u00a0S<\/b>-With auxiliary switch<\/td>\n<\/tr>\n
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4<\/p>\n<\/td>\n

Magnetic blow-out<\/b><\/b><\/td>\n<\/tr>\n
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5<\/p>\n<\/td>\n

Magetic holding structure: K<\/b>-Two joint magnetic retention (Single coil, Two joint self-locking);\u00a02K<\/b>-Three joint magnetic retention (Double coil, Three joint self-locking)<\/td>\n<\/tr>\n
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6<\/p>\n<\/td>\n

Mounting bracket type: M<\/b>-Horizontal (default);\u00a0L<\/b>-One vertical;\u00a02L<\/b>-Two vertical<\/td>\n<\/tr>\n
\n

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

Other function codes: l<\/b>-With suppressor diode;\u00a0R<\/b>-With pre-charged resistance;\u00a0CO<\/b>-Continuous;\u00a0IN<\/b>-Intermittent<\/b><\/td>\n<\/tr>\n
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8<\/p>\n<\/td>\n

Coil rated voltage:\u00a0<\/b>12V, 24V, 36V, 48V, 60V, 72V etc.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

Uses<\/strong><\/h2>\n
This product have one normally open contact, for electric vehicles, telecommunication equipment, engineering machinery, car batteries, electric forklift trucks, trains, ships, electronic control systems such as uninterruptible power supply.<\/div>\n

Technical Parameters:\u00a0 (Version 1.69)<\/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
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\u00a0SAYOON Product Type<\/b><\/p>\n<\/td>\n

\n

\u00a0CZW400A<\/b><\/p>\n<\/td>\n<\/tr>\n

\u00a0Contact form<\/td>\n\u00a01 NO<\/td>\n<\/tr>\n
\u00a0Coil Rated voltage (DC V)<\/td>\n\u00a06V,12V,24V,36V,48V,60V,72V,84V,120V,150V,220V etc.<\/td>\n<\/tr>\n
\u00a0Contact voltage (DC V)<\/td>\n\u00a0\u226480V<\/td>\n<\/tr>\n
\u00a0Rated load current of contact 48V circuit (DC-1)<\/td>\n\u00a0400A<\/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 coil<\/td>\n\u00a00.8-1.2Us<\/td>\n<\/tr>\n
\u00a0Drop-out time (n\/o contacts to open)<\/td>\n\u00a050ms<\/td>\n<\/tr>\n
\u00a0Pull-in time (n\/o contacts to close)<\/td>\n\u00a010ms<\/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\u00a03ms<\/td>\n<\/tr>\n
\u00a0Insulation resistance<\/td>\n\u00a020M\u03a9<\/td>\n<\/tr>\n
\u00a0Electric strength to resist<\/td>\n\u00a050Hz\/60Hz 1000VAC 1minute<\/td>\n<\/tr>\n
\u00a0Typical fault currents which can be ruptured<\/td>\n\u00a01500A\/5ms at 48V DC<\/td>\n<\/tr>\n
\u00a0Coil power (W)<\/td>\n\u00a013-30<\/td>\n<\/tr>\n
\u00a0Temperature rise of coil (K)<\/td>\n\u00a0\u226460<\/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 (default) or Intermittent<\/td>\n<\/tr>\n
\u00a0Contact material<\/td>\n\u00a0Ag alloy<\/td>\n<\/tr>\n
\u00a0Load terminal type<\/td>\n\u00a0M10 Screw<\/td>\n<\/tr>\n
\u00a0Coil terminal type<\/td>\n\u00a06.3mm spade terminals<\/td>\n<\/tr>\n
\u00a0Auxiliary contact rated load (optional)<\/td>\n\u00a02A\/48VDC, 5A\/24VDC<\/td>\n<\/tr>\n
\u00a0Auxiliary contact form(choose)<\/td>\n\u00a01 NO 1 NC<\/td>\n<\/tr>\n
\u00a0Testing organization certification<\/td>\n\u00a0CCC,CE,FCC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

 <\/p>\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.<\/p>\n<\/div>\n

Load Characteristic Curve<\/strong><\/h2>\n
    \n
  • \"fzsm-300-20k\"<\/li>\n
  • \"fzsj-300-1000\"<\/li>\n<\/ul>\n

    Installation Diagram<\/strong><\/h2>\n
    \"czw400a\"\"czw400a-s\"\"czw400a_1\"<\/div>\n

    Wiring Diagram<\/strong><\/h2>\n
    \"SEV100AD<\/div>\n

    Temperature Curve<\/strong><\/h2>\n
    \"xqws-czw100a\"<\/div>\n

    Mechanical Ability And Use Of The Environment<\/strong><\/h2>\n
    \n
    \n\n\n\n\n\n\n\n\n\n\n\n
    \u00a0Contact lead M10 tightening torque (N.m)<\/td>\n\u00a0\u226f20.5 appropriate<\/td>\n<\/tr>\n
    \u00a0Coil lead-out torque (N.m)<\/td>\n\u00a0\u226f0.8 appropriate<\/td>\n<\/tr>\n
    \u00a0Ambient temperature<\/td>\n\u00a0-25~+70\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\u00a0IP40 (According IEC60947)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

    Order Instruction<\/strong><\/h2>\n
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    \u00a0SAYOON Product Type<\/b><\/p>\n<\/td>\n

    		\n

    \u00a0CZW400A<\/b><\/p>\n<\/td>\n<\/tr>\n

    \u00a0U.N.W.<\/td>\n\u00a01350g<\/td>\n<\/tr>\n
    \u00a0Package QTY.<\/td>\n\u00a020PCS<\/td>\n<\/tr>\n
    \u00a0Mounting bracket type<\/td>\n\u00a0M Horizontal (default), 1L One vertical, 2L Two vertical<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

     <\/p>\n

    When ordering, please state the following: name, full model, control coil voltage specification, installation frame type, whether with auxiliary contact, order quantity. For example: DC Contactor CZW400A\/24V 100pcs, indicating the load rated current 400A, without auxiliary contact, default mounting bracket, coil control voltage 24V purchase 100pcs. Special voltage specification products, such as user needs can be special order.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Discover the CZW400A Normally Open DC Contactor \u2013 reliable performance efficient control and durability for your electrical projects. Order now for unbeatable value!<\/p>","protected":false},"featured_media":1335,"template":"","meta":{"_gspb_post_css":""},"product_brand":[],"product_cat":[50],"product_tag":[],"class_list":["post-1334","product","type-product","status-publish","has-post-thumbnail","product_cat-czw-series-dc-contactor","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/product\/1334","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\/1335"}],"wp:attachment":[{"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/media?parent=1334"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/product_brand?post=1334"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/product_cat?post=1334"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sayoon-dc.com\/es\/wp-json\/wp\/v2\/product_tag?post=1334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}