{"id":89339,"date":"2026-04-09T17:06:35","date_gmt":"2026-04-09T15:06:35","guid":{"rendered":"https:\/\/www.lecosinus.fr\/non%20class\u00e9\/transformateur-triphase-400v-400v\/"},"modified":"2026-08-18T10:32:58","modified_gmt":"2026-08-18T08:32:58","slug":"transformateur-triphase-400v-400v","status":"publish","type":"product","link":"https:\/\/www.lecosinus.fr\/en\/transformateurs\/transformateurs-triphases\/transformateur-triphase-400v-400v\/","title":{"rendered":"Transformer Three-phase 400V \/ 400V"},"content":{"rendered":"

This three-phase power isolation transformer is dedicated solely to electrical insulation requirements. With a 400V primary and 400V secondary voltage (three-phase 400V \/ 400V transformer), it is neither a step-down nor a step-up transformer. With its substantial 3,000V galvanic isolation, it is ideal for isolating your three-phase 400V power networks.<\/p>\n

Available in a wide range of power ratings, up to several hundred kVA, it is generally supplied in an enclosed version for installation in all your technical rooms, or next to your machines or inverters.<\/p>\n

If you require a version without an enclosure, simply select the Protection rating (IP) in the product specifications.<\/p>\n

If you cannot find the version that suits you, do not hesitate to send us a specific request<\/strong><\/a> - we can do almost anything!<\/p>\n

As this product has no adjustment taps, we have designed it to be tolerant to over-excitation. This tolerance has its limits, so do not hesitate to contact us if your network voltage is high, if harmonics are present, or for any advice on a specific installation.<\/p>","protected":false},"excerpt":{"rendered":"

Ce transformateur d\u2019isolement triphas\u00e9 de puissance est d\u00e9di\u00e9 uniquement aux besoins d\u2019isolation \u00e9lectrique. De tension primaire 400V et secondaire 400V \u00e9galement (transformateur triphas\u00e9 400V \/ 400V), il n\u2019est donc ni abaisseur ni \u00e9l\u00e9vateur de tension. Avec son isolation galvanique importante de 3 000V, il sera parfait pour isoler vos r\u00e9seaux 400V triphas\u00e9 de puissance. Disponible […]<\/p>\n","protected":false},"featured_media":59150,"template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"Transformateur Triphas\u00e9 400V \/ 400V | Le Cosinus","_seopress_titles_desc":"Transformateur triphas\u00e9 tension primaire 400V et secondaire 400V \u00e9galement. Disponible en de nombreuses puissances, jusqu\u2019\u00e0 plusieurs centaines de KVA,","_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":"Transformateur Triphas\u00e9 400V \/ 400V,Transformateur Triphas\u00e9 400V 400V,Transformateur Triphas\u00e9 400V","_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":[150],"product_tag":[],"class_list":["post-89339","product","type-product","status-publish","has-post-thumbnail","product_cat-transformateurs-triphases","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"acf":{"codeaticle_cc_sans_version":"1T631-TN-N112\/C","isstandard":"Oui","logiciel":"G-Tech","parution_web":"Oui","codeartccweb":"1T631-TN-N112-C","numproduitweb":"N112-C","webparentproduitsku":"1T631-TN-N112-C","webrubriqueproduit":"Basse tension (BT\/BT)","webcaractproduit":"Standard","nomproduitweb":"Transformateur Triphas\u00e9 400V \/ 400V","type_produit":"Transformateur","nb_phase":"Triphas\u00e9","uprimweb":"400V","usec1web":"400V","webimagescotes":"PIC2-TT200-TT6300.jpg","webphotoproduit1":"T 630 - 1.png","webphotoproduit2":"T 630 - 2.png","webphotoproduit3":"T 630 - 3.png","webphotoproduit4":"T 630 - 4.png","webphotoproduit5":"","webphotoproduit6":"","webnomfichier3d":"T630_LE_COSINUS_3D_STL.zip","uprim":"400V D","usec1":"400V Y+N 0.9A","usec2":"","usec3":"","usec4":"","sondes":"","options":"","datemodif":"20140716","delais_reappro":"1 \u00e0 2 semaines","tarif":"464","stock_dispo":"0","remarques_options":"

Caract\u00e9ristiques G\u00e9n\u00e9rales transformateur<\/h2>
  • Rendement de 94 \u00e0 98 % suivant puissance.<\/li>
  • Faibles pertes et faible chute de tension, de 2 \u00e0 4% 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>
  • Di\u00e9lectrique : de 2500 \u00e0 4500V suivant r\u00e9f\u00e9rences.<\/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\/89339","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\/59150"}],"wp:attachment":[{"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/media?parent=89339"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/product_brand?post=89339"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/product_cat?post=89339"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.lecosinus.fr\/en\/wp-json\/wp\/v2\/product_tag?post=89339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}