{"id":2702,"date":"2026-06-03T17:42:59","date_gmt":"2026-06-03T17:42:59","guid":{"rendered":"https:\/\/huyuglobal.com\/?p=2702"},"modified":"2026-06-03T17:43:01","modified_gmt":"2026-06-03T17:43:01","slug":"what-is-ul-489-breakers","status":"publish","type":"post","link":"https:\/\/huyuglobal.com\/ar\/blog\/what-is-ul-489-breakers\/","title":{"rendered":"\u0645\u0627 \u0647\u064a \u0642\u0648\u0627\u0637\u0639 UL 489\u061f"},"content":{"rendered":"<p>\u0639\u0646\u062f\u0645\u0627 \u062a\u0642\u0648\u0645 \u0628\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0637\u0627\u0642\u0629 \u0644\u0645\u0639\u062f\u0627\u062a\u0643 \u0628\u0639\u062f \u0627\u0646\u0642\u0637\u0627\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0628\u0633\u0628\u0628 \u0642\u0627\u0637\u0639 \u0627\u0644\u062f\u0627\u0626\u0631\u0629\u060c \u0641\u0625\u0646\u0643 \u062a\u0641\u062a\u0631\u0636 \u0623\u0646 \u0642\u0627\u0637\u0639 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0633\u064a\u062d\u0627\u0641\u0638 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\u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629\u060c \u0645\u062b\u0644 \u0642\u0627\u0637\u0639 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 HUB9NEZ-80 DC (\u0645\u0639\u062a\u0645\u062f \u0628\u0627\u0644\u0643\u0627\u0645\u0644 \u0648\u0641\u0642\u064b\u0627 \u0644\u0640 UL 489 \u0648 TUV) \u0644\u0623\u0646\u0646\u0627 \u0646\u0639\u062a\u0642\u062f \u0623\u0646 \u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0633\u064a\u0644\u0628\u064a \u0623\u0648 \u064a\u062a\u062c\u0627\u0648\u0632 \u0645\u0648\u0627\u0635\u0641\u0627\u062a\u0647 \u0627\u0644\u0645\u062d\u062f\u062f\u0629 \u0641\u064a \u0643\u0644 \u0645\u0631\u0629 \u062a\u0633\u062a\u062e\u062f\u0645\u0647.<\/p>","protected":false},"excerpt":{"rendered":"<p>When you switch on the power to your equipment after tripping a circuit breaker, you&#8217;re making an assumption that the circuit breaker will keep both your wiring and yourself safe. This assumption is validated by certification and testing, and for molded case circuit breakers in North America, the UL489 standard is the definitive standard. 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