{"id":1467,"date":"2026-10-16T01:00:00","date_gmt":"2026-10-16T01:00:00","guid":{"rendered":"https:\/\/mordio.com\/?p=1467"},"modified":"2026-07-17T09:22:20","modified_gmt":"2026-07-17T09:22:20","slug":"switch-current-ratings-derating-curves-ambient-temperature","status":"publish","type":"post","link":"https:\/\/mordio.com\/ru\/switch-current-ratings-derating-curves-ambient-temperature\/","title":{"rendered":"\u041d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u0442\u043e\u043a\u0438 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0435\u0439 10A, 16A \u0438 20A: \u041a\u0440\u0438\u0432\u044b\u0435 \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432 \u0434\u043b\u044f \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u044b \u043e\u043a\u0440\u0443\u0436\u0430\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u044b \u0438 \u0437\u0430\u043a\u0440\u044b\u0442\u044b\u0445 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043e\u043a"},"content":{"rendered":"<h2>\u041f\u043e\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0445 \u0442\u043e\u043a\u043e\u0432 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0435\u0439 \u0438 \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432<\/h2>\n<p>\u041f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u043d\u0430\u0441\u0442\u0435\u043d\u043d\u044b\u0445 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0435\u0439 \u0434\u043b\u044f \u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u0438\u0445 \u0438\u043b\u0438 \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u044b\u0445 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0442\u043e\u043a \u2014 10A, 16A \u0438\u043b\u0438 20A \u2014 \u044d\u0442\u043e \u043b\u0438\u0448\u044c \u0447\u0430\u0441\u0442\u044c \u0438\u0441\u0442\u043e\u0440\u0438\u0438. \u0424\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0442\u043e\u043a\u043e\u043f\u0440\u043e\u0432\u043e\u0434\u044f\u0449\u0430\u044f \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u043e\u0442 \u0443\u0441\u043b\u043e\u0432\u0438\u0439 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438, \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u043e\u0442 \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u044b \u043e\u043a\u0440\u0443\u0436\u0430\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u044b \u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u0430 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438. \u041a\u0440\u0438\u0432\u044b\u0435 \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432, \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0435 \u0432 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430\u0445, \u0442\u0430\u043a\u0438\u0445 \u043a\u0430\u043a IEC 60669-1 \u0438 BS 1363, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0442 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u0443\u044e \u043e\u0441\u043d\u043e\u0432\u0443 \u0434\u043b\u044f \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u043a\u0438 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432 \u0441 \u0446\u0435\u043b\u044c\u044e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b. \u0412 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u043e\u0431\u044a\u044f\u0441\u043d\u044f\u044e\u0442\u0441\u044f \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u044b \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432 \u0434\u043b\u044f \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u044b \u043e\u043a\u0440\u0443\u0436\u0430\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u044b \u0438 \u0437\u0430\u043a\u0440\u044b\u0442\u044b\u0445 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043e\u043a, \u0447\u0442\u043e \u043f\u043e\u043c\u043e\u0436\u0435\u0442 \u0432\u0430\u043c \u0432\u044b\u0431\u0440\u0430\u0442\u044c \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u044b\u0439 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c \u0434\u043b\u044f \u0432\u0430\u0448\u0435\u0433\u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0430.<\/p>\n<h2>\u041d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0442\u0438\u0432 \u0440\u0435\u0430\u043b\u044c\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u0439<\/h2>\n<p>\u041f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c \u0441 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u043c 10A \u043f\u0440\u0438 \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0435 \u043e\u043a\u0440\u0443\u0436\u0430\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u044b 25\u00b0C \u043c\u043e\u0436\u0435\u0442 \u043d\u0435\u043f\u0440\u0435\u0440\u044b\u0432\u043d\u043e \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0442\u044c 10 \u0430\u043c\u043f\u0435\u0440 \u0442\u043e\u043b\u044c\u043a\u043e \u0432 \u044d\u0442\u0438\u0445 \u0438\u0434\u0435\u0430\u043b\u044c\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445. \u041f\u0440\u0438 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0438 \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u044b \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0440\u0435\u0437\u0438\u0441\u0442\u0438\u0432\u043d\u044b\u0439 \u043d\u0430\u0433\u0440\u0435\u0432 \u043a\u043e\u043d\u0442\u0430\u043a\u0442\u043e\u0432 \u0438 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0445 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432. \u0415\u0441\u043b\u0438 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d \u0432 \u043c\u043d\u043e\u0433\u043e\u043c\u0435\u0441\u0442\u043d\u043e\u043c \u043a\u043e\u0440\u043f\u0443\u0441\u0435 \u0438\u043b\u0438 \u043f\u043b\u043e\u0445\u043e \u0432\u0435\u043d\u0442\u0438\u043b\u0438\u0440\u0443\u0435\u043c\u043e\u0439 \u043f\u043e\u0434\u0440\u043e\u0437\u0435\u0442\u043d\u0438\u043a\u043e\u0432\u043e\u0439 \u043a\u043e\u0440\u043e\u0431\u043a\u0435, \u0440\u0430\u0441\u0441\u0435\u0438\u0432\u0430\u043d\u0438\u0435 \u0442\u0435\u043f\u043b\u0430 \u0443\u043c\u0435\u043d\u044c\u0448\u0430\u0435\u0442\u0441\u044f, \u0447\u0442\u043e \u0435\u0449\u0435 \u0431\u043e\u043b\u044c\u0448\u0435 \u043f\u043e\u0432\u044b\u0448\u0430\u0435\u0442 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u044e\u044e \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0443. \u041a\u0440\u0438\u0432\u044b\u0435 \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432, \u043f\u0443\u0431\u043b\u0438\u043a\u0443\u0435\u043c\u044b\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f\u043c\u0438 (\u0438\u043b\u0438 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u043d\u044b\u0435 \u0438\u0437 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0438\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u0439), \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0442 \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e \u0434\u043e\u043f\u0443\u0441\u0442\u0438\u043c\u044b\u0439 \u0442\u043e\u043a \u0432 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0442 \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u044b \u043e\u043a\u0440\u0443\u0436\u0430\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u044b. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c \u043d\u0430 16A \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0441\u043d\u0438\u0436\u0435\u043d \u0434\u043e 14A \u043f\u0440\u0438 \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0435 40\u00b0C \u0438 \u0434\u043e 12A \u043f\u0440\u0438 50\u00b0C. \u042d\u0442\u0438 \u043a\u0440\u0438\u0432\u044b\u0435 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0430\u043c, \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u043c \u0446\u0435\u043f\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0434\u043e\u043b\u0436\u043d\u044b \u043d\u0430\u0434\u0435\u0436\u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0432 \u0442\u0435\u043f\u043b\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445.<\/p>\n<h2>\u0421\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432 \u0434\u043b\u044f \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u044b \u043e\u043a\u0440\u0443\u0436\u0430\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u044b: \u0418\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u0430\u044f \u043e\u0441\u043d\u043e\u0432\u0430<\/h2>\n<p>The fundamental limit is the maximum allowable temperature of switch contacts and insulating materials. For switches complying with IEC 60669-1, the temperature rise at rated current should not exceed 45 K above ambient for terminals and 55 K for other parts. When ambient is higher than the reference (typically 25\u00b0C or 35\u00b0C), the allowable temperature rise decreases, so the current must be reduced. The derating factor is often given as a percentage per degree above reference. For instance, a common derating factor for 10A switches is 0.5% per \u00b0C above 35\u00b0C. That means at 45\u00b0C, the switch can carry only 95% of its rated current (9.5A). At 55\u00b0C, it drops to 90% (9A). Always consult the manufacturer&#8217;s data\u2014MORDIO provides derating information for each switch model in its technical datasheets.<\/p>\n<h2>\u0417\u0430\u043a\u0440\u044b\u0442\u044b\u0435 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438: \u0412\u043b\u0438\u044f\u043d\u0438\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0430<\/h2>\n<p>When a switch is installed in an enclosed backbox or a multi-gang plate, heat cannot escape easily. The switch&#8217;s own power dissipation (I\u00b2R losses) raises the internal temperature above ambient. Standards like BS 1363-2 require that switches be tested in a simulated enclosure to determine the actual current-carrying capacity. For example, a 20A switch mounted in a single-gang metal box may still carry 20A, but the same switch in a plastic multi-gang enclosure might be limited to 16A. Derating curves for enclosed installations show how many switches can be ganged together without exceeding temperature limits. As a rule of thumb, derate by 10% for each additional switch in the same faceplate, but always verify with the manufacturer&#8217;s data.<\/p>\n<h2>\u0421\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0435\u0439 \u043d\u0430 10A, 16A \u0438 20A \u043f\u0440\u0438 \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u0438 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432<\/h2>\n<p>Let&#8217;s compare typical derating scenarios for MORDIO switches (always refer to actual datasheets):<\/p>\n<ul>\n<li>\u041f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c 10A \u043f\u0440\u0438 25\u00b0C, \u043e\u0434\u043d\u043e\u0433\u043d\u0435\u0437\u0434\u043d\u044b\u0439: \u043f\u043e\u043b\u043d\u044b\u0435 10A. \u041f\u0440\u0438 50\u00b0C: \u043f\u0440\u0438\u0431\u043b\u0438\u0437\u0438\u0442\u0435\u043b\u044c\u043d\u043e 8,5A (\u0441\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043d\u0430 15%). \u0412 4-\u043c\u0435\u0441\u0442\u043d\u043e\u043c \u043a\u043e\u0440\u043f\u0443\u0441\u0435 \u043f\u0440\u0438 35\u00b0C: 8A (\u0441\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043d\u0430 20%).<\/li>\n<li>\u041f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c 16A \u043f\u0440\u0438 25\u00b0C, \u043e\u0434\u043d\u043e\u0433\u043d\u0435\u0437\u0434\u043d\u044b\u0439: 16A. \u041f\u0440\u0438 50\u00b0C: 13,6A (\u0441\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043d\u0430 15%). \u0412 4-\u043c\u0435\u0441\u0442\u043d\u043e\u043c \u043f\u0440\u0438 35\u00b0C: 12,8A (\u0441\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043d\u0430 20%).<\/li>\n<li>\u041f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c 20A \u043f\u0440\u0438 25\u00b0C, \u043e\u0434\u043d\u043e\u0433\u043d\u0435\u0437\u0434\u043d\u044b\u0439: 20A. \u041f\u0440\u0438 50\u00b0C: 17A (\u0441\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043d\u0430 15%). \u0412 4-\u043c\u0435\u0441\u0442\u043d\u043e\u043c \u043f\u0440\u0438 35\u00b0C: 16A (\u0441\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043d\u0430 20%).<\/li>\n<\/ul>\n<p>\u042d\u0442\u0438 \u043f\u0440\u0438\u043c\u0435\u0440\u044b \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0442, \u0447\u0442\u043e \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432 \u043c\u043e\u0436\u0435\u0442 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0443\u043c\u0435\u043d\u044c\u0448\u0438\u0442\u044c \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u0443\u044e \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u044c. \u0414\u043b\u044f \u0446\u0435\u043f\u0435\u0439 \u0441 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u043e\u0439 \u0432 \u0442\u0435\u043f\u043b\u044b\u0445 \u0438\u043b\u0438 \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u043d\u044b\u0445 \u043a\u043e\u0440\u043f\u0443\u0441\u0430\u0445 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0442\u0440\u0435\u0431\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u0438\u0439 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0442\u043e\u043a, \u0447\u0442\u043e\u0431\u044b \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u043e\u0432\u0430\u0442\u044c \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u043c\u0443 \u0442\u043e\u043a\u0443 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043f\u043e\u0441\u043b\u0435 \u0441\u043d\u0438\u0436\u0435\u043d\u0438\u044f \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432.<\/p>\n<h2>\u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u044b \u0438 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0435: BS 1363, IEC \u0438 \u0434\u0440\u0443\u0433\u0438\u0435<\/h2>\n<p>MORDIO \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u043d\u0430\u0441\u0442\u0435\u043d\u043d\u044b\u0435 \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0438 \u0438 \u0440\u043e\u0437\u0435\u0442\u043a\u0438 \u0434\u043b\u044f \u0431\u0440\u0438\u0442\u0430\u043d\u0441\u043a\u043e\u0433\u043e, \u0435\u0432\u0440\u043e\u043f\u0435\u0439\u0441\u043a\u043e\u0433\u043e \u0438 \u0430\u043c\u0435\u0440\u0438\u043a\u0430\u043d\u0441\u043a\u043e\u0433\u043e \u0440\u044b\u043d\u043a\u043e\u0432, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u0435 OEM\/ODM. \u041f\u043e\u043a\u0443\u043f\u0430\u0442\u0435\u043b\u0438 \u0434\u043e\u043b\u0436\u043d\u044b \u0443\u0442\u043e\u0447\u043d\u0438\u0442\u044c \u0442\u043e\u0447\u043d\u044b\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430, \u043f\u0440\u0438\u043c\u0435\u043d\u0438\u043c\u044b\u0435 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u044b, \u0442\u0435\u0441\u0442\u043e\u0432\u0443\u044e \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u044e, MOQ \u0438 \u0441\u0440\u043e\u043a\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0434\u043b\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0441 \u043a\u043e\u043c\u0430\u043d\u0434\u043e\u0439 MORDIO \u043f\u0435\u0440\u0435\u0434 \u0437\u0430\u043a\u0430\u0437\u043e\u043c.<\/p>\n<h2>\u041f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u043e \u0432\u044b\u0431\u043e\u0440\u0443 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0435\u0439<\/h2>\n<p>\u041f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0435\u0439 \u0434\u043b\u044f \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0441\u043b\u0435\u0434\u0443\u0439\u0442\u0435 \u044d\u0442\u0438\u043c \u0448\u0430\u0433\u0430\u043c:<\/p>\n<ul>\n<li>\u041e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435 \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u043d\u0435\u043f\u0440\u0435\u0440\u044b\u0432\u043d\u044b\u0439 \u0442\u043e\u043a \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438.<\/li>\n<li>\u041e\u0446\u0435\u043d\u0438\u0442\u0435 \u043d\u0430\u0438\u0445\u0443\u0434\u0448\u0443\u044e \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0443 \u043e\u043a\u0440\u0443\u0436\u0430\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u044b \u0432 \u043c\u0435\u0441\u0442\u0435 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0440\u044f\u0434\u043e\u043c \u0441 \u043a\u043e\u0442\u043b\u043e\u043c, \u0432 \u0441\u043e\u043b\u043d\u0435\u0447\u043d\u043e\u043c \u043c\u0435\u0441\u0442\u0435).<\/li>\n<li>\u041e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435 \u0442\u0438\u043f \u043a\u043e\u0440\u043f\u0443\u0441\u0430: \u043e\u0434\u043d\u043e\u0433\u043d\u0435\u0437\u0434\u043d\u044b\u0439, \u043c\u043d\u043e\u0433\u043e\u043c\u0435\u0441\u0442\u043d\u044b\u0439, \u043c\u0435\u0442\u0430\u043b\u043b\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0438\u043b\u0438 \u043f\u043b\u0430\u0441\u0442\u0438\u043a\u043e\u0432\u044b\u0439. \u0423\u0447\u0442\u0438\u0442\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0435\u0439 \u043d\u0430 \u043e\u0434\u043d\u043e\u0439 \u043b\u0438\u0446\u0435\u0432\u043e\u0439 \u043f\u0430\u043d\u0435\u043b\u0438.<\/li>\n<li>Apply the derating factors from the manufacturer&#8217;s data. If no data is available, use a 20% derating for multi-gang enclosures and a 15% derating for ambient temperatures above 35\u00b0C.<\/li>\n<li>\u0412\u044b\u0431\u0435\u0440\u0438\u0442\u0435 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c, \u0441\u043d\u0438\u0436\u0435\u043d\u043d\u0430\u044f \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u044c \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u043f\u0440\u0435\u0432\u044b\u0448\u0430\u0435\u0442 \u0442\u043e\u043a \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0435\u0441\u043b\u0438 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0430 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 14A, \u0430 \u0441\u043d\u0438\u0436\u0435\u043d\u043d\u0430\u044f \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044f \u043d\u0430 16A \u0440\u0430\u0432\u043d\u0430 12,8A, \u0432\u044b\u0431\u0435\u0440\u0438\u0442\u0435 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044c \u043d\u0430 20A.<\/li>\n<\/ul>\n<p>\u0412\u0441\u0435\u0433\u0434\u0430 \u0441\u043e\u0431\u043b\u044e\u0434\u0430\u0439\u0442\u0435 \u043c\u0435\u0441\u0442\u043d\u044b\u0435 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043d\u043e\u0440\u043c\u044b \u0438 \u043a\u043e\u043d\u0441\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u0439\u0442\u0435\u0441\u044c \u0441 \u043a\u0432\u0430\u043b\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u043a\u043e\u043c \u0434\u043b\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438. MORDIO \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u0442 \u0430\u0441\u0441\u043e\u0440\u0442\u0438\u043c\u0435\u043d\u0442 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0435\u0439 \u043e\u0442 10A \u0434\u043e 20A \u0441 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u044b\u043c\u0438 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u043c\u0438 \u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430\u0445 \u043d\u0430\u0448\u0438\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432. \u0414\u043b\u044f \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043f\u043e\u0441\u0435\u0442\u0438\u0442\u0435 \u043d\u0430\u0448\u0443 \u043a\u043e\u043b\u043b\u0435\u043a\u0446\u0438\u044e \u0440\u043e\u0437\u0435\u0442\u043e\u043a \u0438 \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0435\u0439 \u043f\u043e \u0431\u0440\u0438\u0442\u0430\u043d\u0441\u043a\u043e\u043c\u0443 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0443 \u0438\u043b\u0438 \u043e\u0437\u043d\u0430\u043a\u043e\u043c\u044c\u0442\u0435\u0441\u044c \u0441 \u043d\u0430\u0448\u0438\u043c\u0438 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u0430\u043c\u0438.<\/p>\n<h2>\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435: \u0421\u043d\u0438\u0436\u0435\u043d\u0438\u0435 \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u043e\u0432 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c \u0438 \u043d\u0430\u0434\u0435\u0436\u043d\u043e\u0441\u0442\u044c<\/h2>\n<p>\u0414\u043b\u044f \u0434\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0435\u0433\u043e \u0447\u0442\u0435\u043d\u0438\u044f \u0438\u0437\u0443\u0447\u0438\u0442\u0435 \u043d\u0430\u0448 \u0430\u0441\u0441\u043e\u0440\u0442\u0438\u043c\u0435\u043d\u0442 \u043f\u0440\u043e\u0434\u0443\u043a\u0446\u0438\u0438 \u0438 \u0443\u0437\u043d\u0430\u0439\u0442\u0435 \u0431\u043e\u043b\u044c\u0448\u0435 \u043e \u043d\u0430\u0448\u0438\u0445 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0445 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430\u0445.<\/p>\n<p>\u041f\u0435\u0440\u0435\u0434 \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u0435\u043c \u0437\u0430\u043a\u0430\u0437\u0430 \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u0443\u0439\u0442\u0435 \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u043d\u044b\u0435 \u0432\u044b\u0448\u0435 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u043f\u0438\u0441\u044c\u043c\u0435\u043d\u043d\u0443\u044e \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u0437\u0430\u043a\u0443\u043f\u043a\u0438. \u0417\u0430\u0444\u0438\u043a\u0441\u0438\u0440\u0443\u0439\u0442\u0435 \u0446\u0435\u043b\u0435\u0432\u043e\u0439 \u0440\u044b\u043d\u043e\u043a, \u043f\u0440\u0438\u043c\u0435\u043d\u0438\u043c\u044b\u0439 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442, \u043d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 \u0438 \u0442\u043e\u043a, \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b, \u0440\u0430\u0437\u043c\u0435\u0440\u044b, \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044e \u043a\u043b\u0435\u043c\u043c, \u0443\u043f\u0430\u043a\u043e\u0432\u043a\u0443, \u043c\u0430\u0440\u043a\u0438\u0440\u043e\u0432\u043a\u0443, \u043c\u0435\u0442\u043e\u0434 \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u044f \u043e\u0431\u0440\u0430\u0437\u0446\u0430, \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u0438 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u044b, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b\u0435 \u043f\u0435\u0440\u0435\u0434 \u043e\u0442\u0433\u0440\u0443\u0437\u043a\u043e\u0439. \u041f\u043e\u043f\u0440\u043e\u0441\u0438\u0442\u0435 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a\u0430 \u0443\u043a\u0430\u0437\u0430\u0442\u044c \u043b\u044e\u0431\u044b\u0435 \u0434\u043e\u043f\u0443\u0449\u0435\u043d\u0438\u044f \u0438\u043b\u0438 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0432 \u043f\u0438\u0441\u044c\u043c\u0435\u043d\u043d\u043e\u0439 \u0444\u043e\u0440\u043c\u0435. \u0425\u0440\u0430\u043d\u0438\u0442\u0435 \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u043d\u044b\u0439 \u043e\u0431\u0440\u0430\u0437\u0435\u0446 \u0438 \u0447\u0435\u0440\u0442\u0435\u0436 \u0441 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0435\u043c \u0432\u0435\u0440\u0441\u0438\u0439 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u044d\u0442\u0430\u043b\u043e\u043d\u0430 \u0434\u043b\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430 \u0438 \u043e\u043a\u043e\u043d\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f. \u042d\u0442\u043e\u0442 \u043f\u0440\u043e\u0446\u0435\u0441\u0441 \u043d\u0435 \u0437\u0430\u043c\u0435\u043d\u044f\u0435\u0442 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u0438\u043b\u0438 \u043c\u0435\u0441\u0442\u043d\u0443\u044e \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u0443\u044e \u044d\u043a\u0441\u043f\u0435\u0440\u0442\u0438\u0437\u0443, \u043d\u043e \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u043f\u043e\u043a\u0443\u043f\u0430\u0442\u0435\u043b\u044f\u043c \u0438 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a\u0430\u043c \u043e\u0431\u0449\u0438\u0439 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c\u043d\u044b\u0439 \u0441\u043f\u0438\u0441\u043e\u043a \u0438 \u0441\u043d\u0438\u0436\u0430\u0435\u0442 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u043f\u0440\u0435\u0434\u043e\u0442\u0432\u0440\u0430\u0442\u0438\u043c\u044b\u0445 \u043d\u0435\u0434\u043e\u0440\u0430\u0437\u0443\u043c\u0435\u043d\u0438\u0439 \u043f\u0440\u0438 \u043a\u043e\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438, \u043e\u0442\u0431\u043e\u0440\u0435 \u043e\u0431\u0440\u0430\u0437\u0446\u043e\u0432, \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0435 \u0438 \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0435.<\/p>\n<p>Explore <a href=\"https:\/\/mordio.com\/ru\/\">MORDIO wall switch and socket solutions<\/a>, \u0438\u043b\u0438 <a href=\"https:\/\/mordio.com\/ru\/contact\/\">contact the team<\/a> to discuss specifications, samples, documentation, MOQ, and lead times for your market.<\/p>","protected":false},"excerpt":{"rendered":"<p>Understanding Switch Current Ratings and Derating When selecting wall switches for commercial or industrial applications, the nominal current rating\u201410A, 16A, or 20A\u2014is only part of the story. The actual current-carrying capacity of a switch depends on operating conditions, particularly ambient temperature and how the switch is installed. Derating curves, defined in standards such as IEC [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1116,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[1312,1453,1454,1452],"class_list":["post-1467","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-ambient-temperature","tag-derating-curves","tag-enclosed-installation","tag-switch-ratings"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Switch Current Ratings: 10A vs 16A vs 20A Derating Curves<\/title>\n<meta name=\"description\" content=\"Learn how ambient temperature and enclosed installations affect switch current ratings. 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