{"id":89340,"date":"2026-04-09T17:06:35","date_gmt":"2026-04-09T15:06:35","guid":{"rendered":"https:\/\/www.lecosinus.fr\/non%20class\u00e9\/autotransformateur-triphase-400v-230v\/"},"modified":"2026-04-22T15:29:08","modified_gmt":"2026-04-22T13:29:08","slug":"autotransformateur-triphase-400v-230v","status":"publish","type":"product","link":"https:\/\/www.lecosinus.fr\/en\/autotransformateurs\/autotransformateurs-triphase\/autotransformateur-triphase-400v-230v\/","title":{"rendered":"Autotransformer Three-phase 400V \/ 230V"},"content":{"rendered":"

This three-phase autotransformer 400V to 230V<\/strong> is ideal for converting 400 Volt three-phase voltage to 230 Volt three-phase when the latter is unavailable in an installation. The advantage of the autotransformer lies in its cost and reduced size compared to an isolation transformer. However, note that to use an autotransformer, galvanic isolation must not be required for your installation.<\/p>\n

Naturally, as Le Cosinus manufactures its own products in its workshops, we can adapt our autotransformers to all voltages according to your needs. All our three-phase autotransformers listed on this website are available in a wide range of power ratings, in bare (IP00) or enclosed (IP2X) versions.<\/p>\n

Note: we also offer reversible autotransformers. This means they can be used in both 400V-230V and 230V-400V configurations.<\/p>\n

But as always, we can perfectly adapt our products with weatherproof enclosures, meet numerous requirements such as improved harmonic tolerance, a UL\/CSA certified insulation system, adjustment taps and much more. Specific request<\/strong><\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

Cet autotransformateur triphas\u00e9 400V vers 230V sera parfait pour convertir la tension de 400 Volt triphas\u00e9 vers du 230 Volt triphas\u00e9 lorsque celle-ci est indisponible dans une installation. L\u2019avantage de l\u2019autotransformateur est son co\u00fbt et son encombrement r\u00e9duit par rapport au transformateur d\u2019isolement. Attention toutefois, pour utiliser un autotransformateur il ne faut pas qu\u2019une isolation […]<\/p>\n","protected":false},"featured_media":59394,"template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"Autotransformateur Triphas\u00e9 400V \/ 230V,autotransformateur triphas\u00e9 230 400v,autotransformateur 400v 230v triphas\u00e9","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"content-type":""},"product_brand":[],"product_cat":[151],"product_tag":[],"class_list":["post-89340","product","type-product","status-publish","has-post-thumbnail","product_cat-autotransformateurs-triphase","first","outofstock","taxable","shipping-taxable","purchasable","product-type-variable"],"acf":{"codeaticle_cc_sans_version":"1U102-TN-G953\/C","isstandard":"Oui","logiciel":"G-Tech","parution_web":"Oui","codeartccweb":"1U102-TN-G953-C","numproduitweb":"G953-C","webparentproduitsku":"1U102-TN-G953-C","webrubriqueproduit":"Basse tension (BT\/BT)","webcaractproduit":"Standard","nomproduitweb":"Autotransformateur Triphas\u00e9 400V \/ 230V","type_produit":"Autotransformateur","nb_phase":"Triphas\u00e9","uprimweb":"400V","usec1web":"230V","webimagescotes":"PIC2-TT200-TT6300.jpg","webphotoproduit1":"T 400 - 1.png","webphotoproduit2":"T 400 - 2.png","webphotoproduit3":"T 400 - 3.png","webphotoproduit4":"T 400 - 4.png","webphotoproduit5":"","webphotoproduit6":"","webnomfichier3d":"T400_LE_COSINUS_3D_STL.zip","uprim":"400V","usec1":"230V Y+N 2.5A","usec2":"","usec3":"","usec4":"","sondes":"","options":"","datemodif":"20140924","delais_reappro":"1 \u00e0 2 semaines","tarif":"478","stock_dispo":"0","remarques_options":"

Caract\u00e9ristiques G\u00e9n\u00e9rales<\/h2>
  • Rendement de 95 \u00e0 98 % suivant puissance.<\/li>
  • Faibles pertes et faible chute de tension, de 2 \u00e0 3% suivant puissance.<\/li>
  • Impr\u00e9gnations haute qualit\u00e9 sous vide d'air.<\/li>
  • Temp\u00e9ratures de fonctionnement 35\u00b0C ou 40\u00b0C.<\/li>
  • IP00 ou IP21 avec peinture textur\u00e9s des coffrets RAL7035.<\/li>
  • Connections sur borniers ou barres suivant la puissance.<\/li>
  • Classe d'\u00e9chauffement : B, F ou H suivant r\u00e9f\u00e9rences.<\/li>
  • Bobinage Cuivre ou Aluminium suivant puissance.<\/li>
  • Respectueux de l\u2019environnement : RoHS et vernis sans solvant.<\/li> <\/ul>

    Options Disponibles<\/h2>
    • Ajout de protection \u00e9lectriques (Disjoncteurs, Fusible, Sectionneurs).<\/li>
    • Adaptation des tensions jusqu'\u00e0 1000V.<\/li>
    • Ajout de prise de r\u00e9glages.<\/li>
    • Ajout de sondes de temp\u00e9ratures (NC, NO ou PT100).<\/li>
    • Adaptation aux Fr\u00e9quences plus \u00e9lev\u00e9es (400Hz).<\/li>
    • Adaptation aux harmoniques (Facteurs K7, K13 etc.).<\/li>
    • Adaptation aux temp\u00e9ratures ambiantes extr\u00eames.<\/li>
    • Variation de l'indice IP (IP00 \u00e0 IP55).<\/li>
    • Ajout de Silent Bloc, Roulettes, Galets de roulement.<\/li>
    • Tropicalisation renforc\u00e9e.<\/li>
    • Peinture sp\u00e9ciale pour les boitiers.<\/li>
    • Conception pour Encombrement sur-Mesure.<\/li> <\/ul>

      ⚠ Remarque importante :<\/strong> Certaines options que vous souhaiteriez sont susceptibles de modifier les encombrements et le poids de l'autotransformateur. Merci de nous consulter.<\/p> <\/div><\/section>"},"_links":{"self":[{"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/product\/89340","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/media\/59394"}],"wp:attachment":[{"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/media?parent=89340"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/product_brand?post=89340"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/product_cat?post=89340"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/product_tag?post=89340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}