{"id":4947,"date":"2026-11-06T10:41:40","date_gmt":"2026-11-06T02:41:40","guid":{"rendered":"https:\/\/cnkuangya.com\/?p=4947"},"modified":"2026-11-06T10:49:57","modified_gmt":"2026-11-06T02:49:57","slug":"rccb-rating-chart-40a-vs-63a-and-30ma-vs-100ma-explained","status":"publish","type":"post","link":"https:\/\/cnkuangya.com\/ar\/blog\/rccb-rating-chart-40a-vs-63a-and-30ma-vs-100ma-explained\/","title":{"rendered":"\u0645\u062e\u0637\u0637 \u062a\u0635\u0646\u064a\u0641 \u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCCB): \u0634\u0631\u062d 40 \u0623\u0645\u0628\u064a\u0631 \u0645\u0642\u0627\u0628\u0644 63 \u0623\u0645\u0628\u064a\u0631 \u0648 30 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0645\u0642\u0627\u0628\u0644 100 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631"},"content":{"rendered":"

\u0625\u062c\u0627\u0628\u0629 \u0633\u0631\u064a\u0639\u0629:<\/strong> \u0639\u0644\u0649 \u0642\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCCB)\u060c, 40 \u0623\u0645\u0628\u064a\u0631 \u0623\u0648 63 \u0623\u0645\u0628\u064a\u0631<\/strong> \u0647\u0648 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0642\u0646\u0646 (In) \u0627\u0644\u0630\u064a \u062a\u0645 \u062a\u0635\u0645\u064a\u0645 \u0646\u0642\u0627\u0637 \u0627\u0644\u062a\u0644\u0627\u0645\u0633 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0647 \u0644\u062d\u0645\u0644\u0647 \u0641\u064a \u0638\u0644 \u0638\u0631\u0648\u0641 \u0645\u062d\u062f\u062f\u0629. 30 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0623\u0648 100 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631<\/strong> is the rated residual operating current (I\u0394n). These values describe different functions. An RCCB detects residual current; it does not provide integral overload or short-circuit protection. Select it together with a suitable upstream or downstream overcurrent protective device, the circuit design and the exact manufacturer’s instructions.<\/p>\n

\"KUANGYA
\u062a\u062d\u0642\u0642 \u0645\u0646 \u0643\u0644 \u0645\u0646 \u062a\u0635\u0646\u064a\u0641 \u0627\u0644\u062a\u064a\u0627\u0631 (\u0623\u0645\u0628\u064a\u0631) \u0648\u062d\u0633\u0627\u0633\u064a\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a (\u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631) \u0639\u0644\u0649 \u0637\u0631\u0627\u0632 \u0642\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCCB) \u0627\u0644\u0645\u062d\u062f\u062f.<\/figcaption><\/figure>\n

\u0645\u0627\u0630\u0627 \u062a\u0639\u0646\u064a \u0627\u0644\u0623\u0631\u0642\u0627\u0645 \u0627\u0644\u0645\u0648\u062c\u0648\u062f\u0629 \u0639\u0644\u0649 \u0642\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCCB)\u061f<\/h2>\n\n\n\n\n\n\n\n\n\n
\u0648\u0636\u0639 \u0627\u0644\u0639\u0644\u0627\u0645\u0627\u062a<\/th>\n\u0627\u0644\u0645\u0639\u0646\u0649<\/th>\n\u0645\u0627 \u0644\u0627 \u064a\u0639\u0646\u064a\u0647<\/th>\n<\/tr>\n<\/thead>\n
40 \u0623\u0645\u0628\u064a\u0631 \u0623\u0648 63 \u0623\u0645\u0628\u064a\u0631 (In)<\/td>\n\u0633\u0639\u0629 \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0645\u0642\u062f\u0631\u0629 \u0644\u0645\u0641\u062a\u0627\u062d \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCCB)<\/td>\n\u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0630\u064a \u064a\u0641\u0635\u0644 \u0639\u0646\u062f\u0647 \u0628\u0633\u0628\u0628 \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0632\u0627\u0626\u062f<\/td>\n<\/tr>\n
30 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0623\u0648 100 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 (I\u0394n)<\/td>\n\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0645\u062a\u0628\u0642\u064a \u0627\u0644\u0645\u0642\u062f\u0631<\/td>\n\u062a\u064a\u0627\u0631 \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0639\u0627\u062f\u064a \u0644\u0644\u062f\u0627\u0626\u0631\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u0646\u0648\u0639 AC\u060c A\u060c F \u0623\u0648 B<\/td>\n\u0642\u062f\u0631\u0629 \u0634\u0643\u0644 \u0645\u0648\u062c\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a<\/td>\n\u0645\u0646\u062d\u0646\u0649 \u0627\u0644\u0641\u0635\u0644 \u0627\u0644\u0632\u0627\u0626\u062f \u0644\u0644\u062a\u064a\u0627\u0631 B \u0623\u0648 C<\/td>\n<\/tr>\n
2P \u0623\u0648 4P<\/td>\n\u0639\u062f\u062f \u0627\u0644\u0623\u0639\u0645\u062f\u0629<\/td>\n\u0625\u062b\u0628\u0627\u062a \u0623\u0646 \u0627\u0644\u062c\u0647\u0627\u0632 \u0645\u0646\u0627\u0633\u0628 \u0644\u0643\u0644 \u0646\u0638\u0627\u0645 \u062a\u0623\u0631\u064a\u0636<\/td>\n<\/tr>\n
\u062a\u0635\u0646\u064a\u0641 \u062a\u064a\u0627\u0631 \u0627\u0644\u0642\u0635\u0631 \u0627\u0644\u0645\u0634\u0631\u0648\u0637<\/td>\n\u0627\u0644\u062a\u0635\u0646\u064a\u0641 \u0641\u064a \u0638\u0644 \u0627\u0644\u062a\u0646\u0633\u064a\u0642 \u0627\u0644\u0645\u062d\u062f\u062f \u0645\u0639 \u062c\u0647\u0627\u0632 \u062d\u0645\u0627\u064a\u0629 \u0639\u0644\u0648\u064a<\/td>\n\u0641\u0635\u0644 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0642\u0635\u064a\u0631\u0629 \u0627\u0644\u0645\u0633\u062a\u0642\u0644 \u0628\u0648\u0627\u0633\u0637\u0629 RCCB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0642\u0627\u0637\u0639 \u062a\u064a\u0627\u0631 \u0645\u062a\u0628\u0642\u064a \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 A \u0628\u0642\u062f\u0631\u0629 63 \u0623\u0645\u0628\u064a\u0631 \u0648 30 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631<\/strong> \u0645\u0635\u0646\u0641 \u0644\u062a\u062d\u0645\u0644 63 \u0623\u0645\u0628\u064a\u0631 \u0641\u064a \u0638\u0644 \u0638\u0631\u0648\u0641\u0647 \u0627\u0644\u0645\u062d\u062f\u062f\u0629 \u0648\u0627\u0644\u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0644\u0623\u0634\u0643\u0627\u0644 \u0645\u0648\u062c\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a \u0627\u0644\u062a\u064a \u064a\u063a\u0637\u064a\u0647\u0627 \u0627\u0644\u0646\u0648\u0639 A \u0639\u0646\u062f \u062d\u0633\u0627\u0633\u064a\u062a\u0647 \u0627\u0644\u0645\u0639\u0644\u0646\u0629. \u0625\u0646\u0647 \u0644\u064a\u0633 \u0642\u0627\u0637\u0639 \u062f\u0627\u0626\u0631\u0629 \u0645\u0635\u063a\u0631 \u0628\u0642\u062f\u0631\u0629 63 \u0623\u0645\u0628\u064a\u0631.<\/p>\n

\u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a 40 \u0623\u0645\u0628\u064a\u0631 \u0645\u0642\u0627\u0628\u0644 63 \u0623\u0645\u0628\u064a\u0631: \u0623\u064a\u0647\u0645\u0627 \u062a\u062e\u062a\u0627\u0631\u061f<\/h2>\n

\u0627\u0644\u0625\u0635\u062f\u0627\u0631 63 \u0623\u0645\u0628\u064a\u0631 \u0644\u062f\u064a\u0647 \u062a\u0635\u0646\u064a\u0641 \u0623\u0639\u0644\u0649 \u0644\u062d\u0645\u0644 \u0627\u0644\u062a\u064a\u0627\u0631. \u0625\u0646\u0647 \u064a\u0648\u0641\u0631 \u062d\u0645\u0627\u064a\u0629 \u0623\u0642\u0648\u0649 \u0636\u062f \u0627\u0644\u0635\u062f\u0645\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0639\u0646\u062f\u0645\u0627 \u064a\u0643\u0648\u0646 \u0644\u0644\u062c\u0647\u0627\u0632\u064a\u0646 \u0646\u0641\u0633 \u062d\u0633\u0627\u0633\u064a\u0629 30 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0648\u0646\u0641\u0633 \u0646\u0648\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a. \u0643\u0645\u0627 \u0623\u0646\u0647 \u0644\u0627 \u064a\u0633\u0645\u062d \u0628\u0643\u0627\u0628\u0644 \u0630\u064a \u0645\u0642\u0627\u0633 \u0623\u0642\u0644 \u0623\u0648 \u0642\u0627\u0637\u0639 \u0639\u0644\u0648\u064a \u062a\u0645 \u0627\u062e\u062a\u064a\u0627\u0631\u0647 \u0628\u0634\u0643\u0644 \u063a\u064a\u0631 \u0635\u062d\u064a\u062d. \u0644\u0627<\/em> \u062a\u062d\u0642\u0642 \u0645\u0646 \u0623\u0642\u0635\u0649 \u062a\u064a\u0627\u0631 \u0645\u0633\u062a\u0645\u0631 \u0639\u0628\u0631 \u0642\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a\u060c \u0648\u062a\u0635\u0646\u064a\u0641 \u0648\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0645\u0635\u0647\u0631 \u0623\u0648 \u0627\u0644\u0642\u0627\u0637\u0639 \u0627\u0644\u0648\u0627\u0642\u064a\u060c \u0648\u0642\u062f\u0631\u0629 \u062a\u062d\u0645\u0644 \u0627\u0644\u0643\u0627\u0628\u0644 \u0644\u0644\u062a\u064a\u0627\u0631\u060c \u0648\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u063a\u0644\u0627\u0641\u060c \u0648\u0627\u0644\u062a\u062c\u0645\u064a\u0639\u060c \u0648\u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0642\u0636\u0628\u0627\u0646 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u0648\u0627\u0644\u0623\u0637\u0631\u0627\u0641\u060c \u0648\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u062a\u0646\u0633\u064a\u0642 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629. \u0645\u062c\u0645\u0648\u0639 \u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0644\u0648\u062d\u0629 \u062c\u0645\u064a\u0639 \u0627\u0644\u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u0633\u0641\u0644\u064a\u0629 \u0644\u064a\u0633 \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0627 \u0647\u0648 \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0641\u0639\u0644\u064a \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646\u061b \u0648\u0628\u0627\u0644\u0645\u062b\u0644\u060c \u0641\u0625\u0646 \u0627\u0641\u062a\u0631\u0627\u0636 \u0623\u0646 \u0627\u0644\u0623\u062d\u0645\u0627\u0644 \u0644\u0627 \u062a\u0639\u0645\u0644 \u0645\u0639\u064b\u0627 \u0623\u0628\u062f\u064b\u0627 \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0642\u0644\u0644 \u0645\u0646 \u062a\u0642\u062f\u064a\u0631 \u0627\u0644\u0648\u0627\u062c\u0628 \u0627\u0644\u062d\u0631\u0627\u0631\u064a.<\/p>\n

Check the maximum sustained current through the RCCB, the rating and characteristic of the protective fuse or breaker, cable ampacity, enclosure temperature, grouping, busbar and terminal ratings, and the manufacturer’s coordination data. The sum of all downstream breaker nameplate ratings is not automatically the actual simultaneous load; equally, assuming that loads never run together can understate the thermal duty.<\/p>\n

\u0625\u0630\u0627 \u0643\u0627\u0646 \u0644\u0648\u062d \u0627\u0644\u062a\u0648\u0632\u064a\u0639 \u064a\u0645\u0643\u0646\u0647 \u062d\u0645\u0644 \u0623\u0643\u062b\u0631 \u0645\u0646 40 \u0623\u0645\u0628\u064a\u0631 \u0639\u0628\u0631 \u0642\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a \u0627\u0644\u062e\u0627\u0635 \u0628\u0647 \u0641\u064a \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0639\u0627\u062f\u064a\u060c \u0641\u0644\u0627 \u064a\u0646\u0628\u063a\u064a \u0627\u062e\u062a\u064a\u0627\u0631 \u062c\u0647\u0627\u0632 40 \u0623\u0645\u0628\u064a\u0631 \u0644\u0645\u062c\u0631\u062f \u0623\u0646 \u062d\u0633\u0627\u0633\u064a\u0629 \u0627\u0644\u062a\u0633\u0631\u0628 \u0644\u062f\u064a\u0647 \u0647\u064a 30 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631. \u0642\u062f \u064a\u0643\u0648\u0646 \u062c\u0647\u0627\u0632 63 \u0623\u0645\u0628\u064a\u0631 \u0645\u0646\u0627\u0633\u0628\u064b\u0627\u060c \u0648\u0644\u0643\u0646 \u0644\u0627 \u064a\u0632\u0627\u0644 \u064a\u062a\u0639\u064a\u0646 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0632\u0627\u0626\u062f \u0627\u0644\u0639\u0644\u0648\u064a \u0648\u062a\u062d\u062f\u064a\u062f \u062d\u062c\u0645 \u0627\u0644\u0645\u0648\u0635\u0644. \u0639\u0644\u0649 \u0627\u0644\u0639\u0643\u0633 \u0645\u0646 \u0630\u0644\u0643\u060c \u0641\u0625\u0646 \u062a\u0631\u0643\u064a\u0628 \u0642\u0627\u0637\u0639 \u062a\u064a\u0627\u0631 \u0645\u062a\u0628\u0642\u064a 63 \u0623\u0645\u0628\u064a\u0631 \u062d\u064a\u062b \u064a\u0642\u062a\u0635\u0631 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0639\u0644\u0649 \u062a\u064a\u0627\u0631 \u0623\u0642\u0644 \u0644\u0627 \u064a\u062c\u0639\u0644 \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a \u0644\u062f\u064a\u0647 \u0623\u0642\u0644 \u062d\u0633\u0627\u0633\u064a\u0629.<\/strong> \u062f\u0644\u064a\u0644 \u062a\u0637\u0628\u064a\u0642 \u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a \u0645\u0646 Eaton.<\/p>\n

Eaton’s RCD application guide<\/a> explains that a fuse or breaker can carry more than its nameplate current before tripping. For that reason, RCCB contact protection must follow the particular manufacturer’s coordination table rather than a universal \u201csame ampere rating\u201d rule.<\/p>\n

30 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0645\u0642\u0627\u0628\u0644 100 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0645\u0642\u0627\u0628\u0644 300 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631: \u0627\u0644\u062d\u0633\u0627\u0633\u064a\u0629 \u0642\u0631\u0627\u0631 \u0645\u0646\u0641\u0635\u0644<\/h2>\n\n\n\n\n\n\n\n
\u0639\u0644\u0627\u0645\u0627\u062a RCCB<\/th>\n\u062f\u0648\u0631 \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a<\/th>\n\u0641\u062d\u0635 \u0645\u0647\u0645<\/th>\n<\/tr>\n<\/thead>\n
30 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631<\/td>\n\u062d\u0645\u0627\u064a\u0629 \u0625\u0636\u0627\u0641\u064a\u0629 \u0636\u062f \u0627\u0644\u0635\u062f\u0645\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0639\u0646\u062f \u0627\u0644\u062d\u0627\u062c\u0629<\/td>\n\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0623\u0633\u0644\u0627\u0643 \u0627\u0644\u0645\u0637\u0628\u0642\u0629\u060c \u062a\u0633\u0631\u0628 \u0627\u0644\u062d\u0645\u0644 \u0648\u0646\u0648\u0639 RCD<\/td>\n<\/tr>\n
100 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631<\/td>\n\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0623\u0648 \u0627\u0644\u0645\u0648\u062c\u0648\u062f\u0629 \u0641\u064a \u0627\u0644\u0645\u0646\u0628\u0639<\/td>\n\u062a\u0631\u062a\u064a\u0628 \u0627\u0644\u062a\u0623\u0631\u064a\u0636 \u0648\u0627\u0644\u062a\u0646\u0633\u064a\u0642 \u0645\u0639 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u0644\u0627\u062d\u0642\u0629<\/td>\n<\/tr>\n
300 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631<\/td>\n\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0645\u0639\u064a\u0646\u0629 \u0645\u0631\u062a\u0628\u0637\u0629 \u0628\u0627\u0644\u0645\u0635\u062f\u0631 \u0623\u0648 \u0628\u062e\u0637\u0631 \u0627\u0644\u062d\u0631\u064a\u0642<\/td>\n\u0627\u0644\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0645\u062d\u0644\u064a\u0629\u060c \u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0626\u064a\u0629 \u0648\u062a\u0639\u0644\u064a\u0645\u0627\u062a \u0627\u0644\u0645\u0639\u062f\u0627\u062a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0644\u0627 \u064a\u0639\u062a\u0628\u0631 \u0642\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCCB) \u0628\u062a\u064a\u0627\u0631 100 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0623\u0648 300 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0628\u062f\u064a\u0644\u0627\u064b \u0645\u0628\u0627\u0634\u0631\u0627\u064b \u0644\u062c\u0647\u0627\u0632 30 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0641\u064a \u062f\u0627\u0626\u0631\u0629 \u0646\u0647\u0627\u0626\u064a\u0629. \u064a\u0639\u062a\u0645\u062f \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0642\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCD) \u0627\u0644\u0645\u062a\u0623\u062e\u0631 \u0623\u0648 \u0627\u0644\u0627\u0646\u062a\u0642\u0627\u0626\u064a \u0641\u064a \u0627\u0644\u0645\u0635\u062f\u0631 \u0645\u0646\u0627\u0633\u0628\u064b\u0627 \u0639\u0644\u0649 \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0648\u0627\u0644\u062a\u0646\u0633\u064a\u0642 \u0627\u0644\u0645\u062e\u062a\u0628\u0631. \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a \u0627\u0644\u0646\u0648\u0639<\/em> \u0645\u0647\u0645 \u0623\u064a\u0636\u064b\u0627: \u064a\u0645\u0643\u0646 \u0644\u0644\u0623\u062d\u0645\u0627\u0644 \u0627\u0644\u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a\u0629 \u0625\u0646\u062a\u0627\u062c \u0623\u0634\u0643\u0627\u0644 \u0645\u0648\u062c\u064a\u0629 \u0644\u0645 \u064a\u062a\u0645 \u062a\u0635\u0645\u064a\u0645 \u062c\u0647\u0627\u0632 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 AC \u0644\u0627\u0643\u062a\u0634\u0627\u0641\u0647\u0627. \u0627\u062a\u0628\u0639 \u062f\u0644\u064a\u0644 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0648\u0627\u0644\u0642\u0648\u0627\u0639\u062f \u0627\u0644\u0645\u062d\u0644\u064a\u0629 \u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0646\u0648\u0639 A \u0623\u0648 F \u0623\u0648 B.<\/p>\n

\u0647\u0644 \u064a\u062a\u0639\u062b\u0631 \u0642\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCCB) \u0639\u0646\u062f \u0627\u0644\u062d\u0645\u0644 \u0627\u0644\u0632\u0627\u0626\u062f \u0623\u0648 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0642\u0635\u064a\u0631\u0629\u061f<\/h2>\n

\u0644\u0627. \u064a\u0631\u0627\u0642\u0628 \u0642\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCCB) \u0628\u062f\u0648\u0646 \u062d\u0645\u0627\u064a\u0629 \u0645\u062f\u0645\u062c\u0629 \u0645\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0632\u0627\u0626\u062f \u0639\u062f\u0645 \u0627\u0644\u062a\u0648\u0627\u0632\u0646 \u0628\u064a\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u062e\u0627\u0631\u062c \u0648\u0627\u0644\u0639\u0627\u0626\u062f \u0639\u0628\u0631 \u0645\u0648\u0635\u0644\u0627\u062a\u0647 \u0627\u0644\u0645\u062d\u0645\u064a\u0629. \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u062d\u062f\u062b \u062d\u0645\u0644 \u0632\u0627\u0626\u062f \u0645\u0646 \u0627\u0644\u062e\u0637 \u0625\u0644\u0649 \u0627\u0644\u0645\u062d\u0627\u064a\u062f \u062f\u0648\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a \u0627\u0644\u0644\u0627\u0632\u0645 \u0644\u062a\u0634\u063a\u064a\u0644 \u0642\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0641\u0627\u0636\u0644\u064a \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCCB). \u064a\u062c\u0628 \u0623\u0646 \u064a\u0648\u0641\u0631 \u0645\u0635\u0647\u0631 \u0623\u0648 \u0642\u0627\u0637\u0639 \u062f\u0627\u0626\u0631\u0629 \u0645\u0646\u0641\u0635\u0644 \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0645\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0632\u0627\u0626\u062f \u0648\u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0642\u0635\u064a\u0631\u0629. \u0625\u0630\u0627 \u0643\u0627\u0646 \u064a\u062c\u0628 \u0639\u0644\u0649 \u062c\u0647\u0627\u0632 \u0648\u0627\u062d\u062f \u0627\u0644\u062c\u0645\u0639 \u0628\u064a\u0646 \u0627\u0644\u0648\u0638\u064a\u0641\u062a\u064a\u0646\u060c \u0641\u0631\u0627\u062c\u0639 RCBO<\/a> \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0630\u0644\u0643.<\/p>\n

CHINT’s NL1 product documentation<\/a> explicitly describes an RCCB as residual-current protection without overcurrent protection. The declared conditional short-circuit rating is valid only with its specified upstream short-circuit protective device.<\/p>\n

Five checks before ordering an RCCB<\/h2>\n
    \n
  1. \u0627\u0644\u0646\u0638\u0627\u0645:<\/strong> Confirm voltage, frequency, phase arrangement and whether 2P or 4P is required.<\/li>\n
  2. Current:<\/strong> Determine the current the RCCB must continuously carry, including simultaneous loading and applicable derating.<\/li>\n
  3. Residual protection:<\/strong> Choose I\u0394n and Type AC\/A\/F\/B from the protection objective, connected equipment and local rules.<\/li>\n
  4. Overcurrent coordination:<\/strong> Check the fuse or breaker that protects the RCCB and the available fault current against the exact device documentation.<\/li>\n
  5. \u0627\u0644\u062a\u0631\u0643\u064a\u0628:<\/strong> Verify conductor size, terminal and busbar compatibility, ambient temperature and a testing plan.<\/li>\n<\/ol>\n

    For an example of available ratings, KUANGYA’s VKL001 RCCB<\/a> lists 2P and 4P options, 40 A and 63 A among its current ratings, and 30 mA, 100 mA and 300 mA sensitivities. Confirm the exact variant and certificates before specifying it. Our RCCB vs RCBO comparison<\/a> explains when an integrated overcurrent device may be preferable.<\/p>\n

    \u0623\u0633\u0626\u0644\u0629 \u0645\u062a\u0643\u0631\u0631\u0629<\/h2>\n

    Will a 40A RCCB trip when the load reaches 41A?<\/h3>\n

    No. The 40 A label is a rated current-carrying value, not an overload trip setting. The separate overcurrent protective device must be selected to protect the RCCB and conductors.<\/p>\n

    Is a 63A 30mA RCCB safer than a 40A 30mA RCCB?<\/h3>\n

    Both have the same declared residual-current sensitivity if they are otherwise the same type. The 63 A version has a higher rated current-carrying capacity. Safety depends on correct selection and coordination for the whole circuit.<\/p>\n

    Can I replace a 30mA RCCB with a 100mA model to stop nuisance tripping?<\/h3>\n

    Do not change sensitivity merely to hide repeated trips. First investigate leakage, moisture, wiring and load characteristics. A circuit that requires 30 mA additional protection must retain a compliant protective arrangement.<\/p>\n

    Selection support<\/h2>\n

    Send KUANGYA the supply voltage, phases, earthing arrangement, expected load current, prospective fault current, upstream protective device, desired I\u0394n, residual-current type and destination market. We can then identify a suitable RCCB variant for engineering review. \u0627\u062a\u0635\u0644 \u0628\u0640 KUANGYA<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

    \u0645\u062e\u0637\u0637 \u062a\u0635\u0646\u064a\u0641 \u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a (RCCB): \u0642\u0627\u0631\u0646 \u0628\u064a\u0646 \u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0627\u0644\u062a\u064a\u0627\u0631 40 \u0623\u0645\u0628\u064a\u0631 \u0645\u0642\u0627\u0628\u0644 63 \u0623\u0645\u0628\u064a\u0631 \u0648\u0625\u0639\u062f\u0627\u062f\u0627\u062a \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a 30 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0645\u0642\u0627\u0628\u0644 100 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631. \u062a\u0639\u0631\u0641 \u0639\u0644\u0649 \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0648\u0641\u062d\u0648\u0635\u0627\u062a \u0627\u0644\u062d\u0645\u0627\u064a\u0629 \u0645\u0646 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0632\u0627\u0626\u062f.<\/p>","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35,47],"tags":[],"class_list":["post-4947","post","type-post","status-publish","format-standard","hentry","category-blog","category-rcd-leakage-protection"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/posts\/4947","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/comments?post=4947"}],"version-history":[{"count":2,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/posts\/4947\/revisions"}],"predecessor-version":[{"id":4950,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/posts\/4947\/revisions\/4950"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/media?parent=4947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/categories?post=4947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/tags?post=4947"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}