{"id":2944,"date":"2026-08-12T05:10:00","date_gmt":"2026-08-12T05:10:00","guid":{"rendered":"https:\/\/cnsuton.com\/?p=2944"},"modified":"2026-08-12T05:36:01","modified_gmt":"2026-08-12T05:36:01","slug":"single-pole-breaker-guide-for-panel-builders","status":"publish","type":"post","link":"https:\/\/cnsuton.com\/vi\/blog\/single-pole-breaker-guide-for-panel-builders\/","title":{"rendered":"Khi n\u00e0o C\u1ea7u dao \u0111\u01a1n l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p cho t\u1ee7 \u0111i\u1ec7n"},"content":{"rendered":"
\n

C\u1ea7u dao \u0111\u01a1n (single-pole breaker) ch\u1ec9 l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p khi c\u00f3 m\u1ed9t \u0111\u01b0\u1eddng d\u00f2ng \u0111i\u1ec7n c\u1ea7n ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 v\u00e0 \u0111\u00f3ng c\u1eaft c\u1ee7a thi\u1ebft b\u1ecb theo thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng v\u00e0 c\u00e1c quy \u0111\u1ecbnh hi\u1ec7n h\u00e0nh. \u201cM\u1ed9t pha\u201d, m\u1ee9c \u0111i\u1ec7n \u00e1p quen thu\u1ed9c ho\u1eb7c chi\u1ec1u r\u1ed9ng m\u00f4-\u0111un h\u1eb9p kh\u00f4ng ch\u1ee9ng minh r\u1eb1ng 1P l\u00e0 \u0111\u00fang.<\/p>\n

\"DZ47<\/figure>\n

C\u00e1c nh\u00e0 l\u1eafp r\u00e1p t\u1ee7 \u0111i\u1ec7n n\u00ean quy\u1ebft \u0111\u1ecbnh s\u1ed1 c\u1ef1c d\u1ef1a tr\u00ean c\u00e1c d\u00e2y d\u1eabn v\u00e0 y\u00eau c\u1ea7u v\u1eadn h\u00e0nh \u0111\u1ed3ng th\u1eddi, sau \u0111\u00f3 ch\u1ecdn d\u00f2ng \u0111i\u1ec7n, \u0111i\u1ec7n \u00e1p, \u0111\u1eb7c tuy\u1ebfn v\u00e0 kh\u1ea3 n\u0103ng c\u1eaft. d\u00f2ng s\u1ea3n ph\u1ea9m thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft d\u1ea1ng m\u00f4-\u0111un g\u1eafn thanh DIN<\/a> l\u00e0 l\u1ed9 tr\u00ecnh s\u1ea3n ph\u1ea9m sau quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf \u0111\u00f3.<\/p>\n

\u201c\u0110\u01a1n c\u1ef1c\u201d th\u1ef1c s\u1ef1 m\u00f4 t\u1ea3 \u0111i\u1ec1u g\u00ec<\/h2>\n

S\u1ed1 c\u1ef1c x\u00e1c \u0111\u1ecbnh c\u00f3 bao nhi\u00eau \u0111\u01b0\u1eddng d\u1eabn d\u00f2ng \u0111i\u1ec7n m\u00e0 thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ea3o v\u1ec7 nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a m\u1ed9t c\u01a1 ch\u1ebf. N\u00f3 kh\u00f4ng m\u00f4 t\u1ea3 to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng v\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0 t\u00ean g\u1ecdi kh\u00e1c c\u1ee7a m\u1ee9c \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n (ampe).<\/p>\n

Aptomat 1 c\u1ef1c (1P) c\u00f3 th\u1ec3 c\u00f3 s\u1eb5n \u1edf nhi\u1ec1u m\u1ee9c d\u00f2ng \u0111i\u1ec7n. Ng\u01b0\u1ee3c l\u1ea1i, c\u00f9ng m\u1ed9t \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n \u1edf c\u00e1c c\u1ea5u h\u00ecnh 1 c\u1ef1c, 2 c\u1ef1c, 3 c\u1ef1c v\u00e0 4 c\u1ef1c (1P, 2P, 3P v\u00e0 4P). Do \u0111\u00f3, d\u1ef1 \u00e1n ph\u1ea3i ghi l\u1ea1i c\u1ea3 hai tr\u01b0\u1eddng th\u00f4ng tin n\u00e0y.<\/p>\n

Quy\u1ebft \u0111\u1ecbnh t\u1eeb c\u1ea5u tr\u00fac topology v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n
C\u00e2u h\u1ecfi thi\u1ebft k\u1ebf<\/th>\nC\u1ea7n thi\u1ebft l\u1eadp g\u00ec<\/th>\nT\u1ea1i sao n\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ed1 l\u01b0\u1ee3ng c\u1ef1c<\/th>\n<\/tr>\n<\/thead>\n
Nh\u1eefng d\u00e2y d\u1eabn n\u00e0o mang d\u00f2ng \u0111i\u1ec7n t\u1ea3i?<\/td>\ns\u01a1 \u0111\u1ed3 m\u1ea1ch th\u1ef1c t\u1ebf<\/td>\nx\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u01b0\u1eddng \u0111i tham gia v\u00e0o m\u1ea1ch \u0111i\u1ec7n<\/td>\n<\/tr>\n
Nh\u1eefng d\u00e2y d\u1eabn n\u00e0o y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng?<\/td>\nh\u1ec7 th\u1ed1ng n\u1ed1i \u0111\u1ea5t v\u00e0 quy t\u1eafc d\u1ef1 \u00e1n<\/td>\nkh\u00f4ng ph\u1ea3i ng\u01b0\u1eddi d\u1eabn d\u1eaft n\u00e0o c\u0169ng \u0111\u01b0\u1ee3c \u0111\u1ed1i x\u1eed nh\u01b0 nhau<\/td>\n<\/tr>\n
Nh\u1eefng d\u00e2y d\u1eabn n\u00e0o ph\u1ea3i ng\u1eaft c\u00f9ng nhau?<\/td>\ny\u00eau c\u1ea7u c\u00e1ch ly v\u00e0 ph\u1ea3n \u1ee9ng s\u1ef1 c\u1ed1<\/td>\nc\u00f3 th\u1ec3 y\u00eau c\u1ea7u m\u1ed9t c\u01a1 c\u1ea5u \u0111a c\u1ef1c chung<\/td>\n<\/tr>\n
D\u00e2y trung t\u00ednh \u0111\u01b0\u1ee3c \u0111\u00f3ng c\u1eaft hay \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7?<\/td>\nc\u00e1c quy t\u1eafc hi\u1ec7n h\u00e0nh v\u00e0 thi\u1ebft k\u1ebf thi\u1ebft b\u1ecb<\/td>\nkh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c m\u1eb7c \u0111\u1ecbnh tr\u00ean to\u00e0n c\u1ea7u<\/td>\n<\/tr>\n
\u0110i\u1ec7n \u00e1p t\u1ed3n \u0111\u1ecdng tr\u00ean m\u1ed7i c\u1ef1c v\u00e0 thi\u1ebft b\u1ecb l\u00e0 bao nhi\u00eau?<\/td>\ns\u01a1 \u0111\u1ed3 \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng<\/td>\nm\u1ed7i \u0111\u00e1nh gi\u00e1 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 ph\u1ea3i \u0111\u01b0\u1ee3c t\u00f4n tr\u1ecdng<\/td>\n<\/tr>\n
H\u00e0nh vi t\u1ea3i n\u00e0o \u0111\u01b0\u1ee3c mong \u0111\u1ee3i?<\/td>\nd\u00f2ng \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh v\u00e0 d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng<\/td>\nki\u1ec3m so\u00e1t d\u00f2ng \u0111i\u1ec7n v\u00e0 \u0111\u01b0\u1eddng cong t\u00e1c \u0111\u1ed9ng, kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o s\u1ed1 c\u1ef1c<\/td>\n<\/tr>\n
D\u00f2ng s\u1ef1 c\u1ed1 d\u1ef1 ki\u1ebfn l\u00e0 g\u00ec?<\/td>\nt\u00ednh to\u00e1n ng\u1eafn m\u1ea1ch<\/td>\ndung l\u01b0\u1ee3ng c\u1eaft y\u00eau c\u1ea7u c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\"ETB-63<\/figure>\n

Hai aptomat 1 c\u1ef1c \u0111\u1ee9ng c\u1ea1nh nhau kh\u00f4ng m\u1eb7c nhi\u00ean th\u00e0nh m\u1ed9t aptomat 2 c\u1ef1c<\/h2>\n

Vi\u1ec7c \u0111\u1eb7t hai thi\u1ebft b\u1ecb \u0111\u01a1n c\u1ef1c \u0111\u1ed9c l\u1eadp c\u1ea1nh nhau kh\u00f4ng t\u1ef1 \u0111\u1ed9ng mang l\u1ea1i ho\u1ea1t \u0111\u1ed9ng chung, li\u00ean k\u1ebft tay g\u1ea1t \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, vi\u1ec7c ng\u1eaft ph\u1ed1i h\u1ee3p ho\u1eb7c ch\u1ee9c n\u0103ng c\u00e1ch ly \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u t\u1eeb m\u1ed9t thi\u1ebft b\u1ecb hai c\u1ef1c. H\u00e3y s\u1eed d\u1ee5ng c\u1ea5u h\u00ecnh nhi\u1ec1u c\u1ef1c \u0111\u01b0\u1ee3c x\u00e1c minh khi c\u1ea7n c\u00f3 h\u00e0nh vi \u0111\u1ed3ng th\u1eddi.<\/p>\n

Bu\u1ed5i ph\u00e1t tr\u1ef1c ti\u1ebfp H\u01b0\u1edbng d\u1eabn MCB 2 c\u1ef1c<\/a> bao ph\u1ee7 \u00fd \u0111\u1ecbnh 2P. Gi\u1eef cho trang \u0111\u01a1n c\u1ef1c t\u1eadp trung v\u00e0o c\u00e1c m\u1ea1ch m\u00e0 thi\u1ebft k\u1ebf th\u1ef1c s\u1ef1 y\u00eau c\u1ea7u m\u1ed9t c\u1ef1c.<\/p>\n

Ho\u00e0n t\u1ea5t vi\u1ec7c l\u1ef1a ch\u1ecdn MCB sau s\u1ed1 c\u1ef1c<\/h2>\n

Khi \u0111\u00e3 x\u00e1c nh\u1eadn 1P, t\u00e0i li\u1ec7u:<\/p>\n

    \n
  1. d\u00f2ng \u0111i\u1ec7n thi\u1ebft k\u1ebf v\u00e0 h\u1ec7 s\u1ed1 t\u1ea3i;<\/li>\n
  2. d\u00e2y d\u1eabn b\u1ea3o v\u1ec7 v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t;<\/li>\n
  3. \u0111i\u1ec7n \u00e1p v\u00e0 t\u1ea7n s\u1ed1 \u0111\u1ecbnh m\u1ee9c;<\/li>\n
  4. \u0111\u01b0\u1eddng cong \u0111\u1eb7c t\u00ednh d\u00f2ng c\u1eaft ho\u1eb7c y\u00eau c\u1ea7u ph\u1ea3n \u1ee9ng t\u1ee9c th\u1eddi;<\/li>\n
  5. d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 d\u1ef1 ki\u1ebfn v\u00e0 kh\u1ea3 n\u0103ng c\u1eaft;<\/li>\n
  6. l\u1eafp \u0111\u1eb7t xung quanh, tr\u00ean cao v\u00e0 song song;<\/li>\n
  7. \u0111\u1ea7u c\u1ef1c, thanh c\u00e1i v\u00e0 giao di\u1ec7n l\u1eafp \u0111\u1eb7t;<\/li>\n
  8. c\u00e1c y\u00eau c\u1ea7u v\u1ec1 ph\u1ee5 tr\u1ee3\/b\u00e1o \u0111\u1ed9ng\/m\u1ea1ch shunt;<\/li>\n
  9. ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng v\u00e0 b\u1eb1ng ch\u1ee9ng ph\u00ea duy\u1ec7t.<\/li>\n<\/ol>\n

    C\u00e1c tr\u01b0\u1eddng n\u00e0y ng\u0103n c\u1ea3n vi\u1ec7c m\u1ed9t l\u1ef1a ch\u1ecdn c\u1ef1c \u0111\u00fang tr\u1edf th\u00e0nh m\u1ed9t th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt b\u1ed9 ng\u1eaft m\u1ea1ch ch\u01b0a \u0111\u1ea7y \u0111\u1ee7.<\/p>\n

    So s\u00e1nh c\u00e1c \u0111\u01b0\u1eddng d\u1eabn s\u1ea3n ph\u1ea9m SUTON 1P \u0111\u00e3 x\u00e1c th\u1ef1c<\/h2>\n

    The Aptomat d\u00f2ng DZ47<\/a> trang c\u00f4ng b\u1ed1 c\u00e1c t\u00f9y ch\u1ecdn 1P\u20134P tr\u00ean to\u00e0n b\u1ed9 d\u00f2ng s\u1ea3n ph\u1ea9m c\u1ee7a m\u00ecnh. Aptomat ch\u1ed1ng d\u00f2ng r\u00f2 ETB-63 c\u00f3 kh\u1ea3 n\u0103ng c\u1eaft cao<\/a> trang li\u1ec7t k\u00ea 1P\/2P cho 230\/400 V v\u00e0 3P\/4P cho 400 V, v\u1edbi c\u00e1c t\u00f9y ch\u1ecdn d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c l\u00ean \u0111\u1ebfn 63 A. \u0110\u1ed1i v\u1edbi c\u00e1c y\u00eau c\u1ea7u d\u00f2ng \u0111i\u1ec7n m\u00f4-\u0111un cao h\u01a1n, D\u00f2ng ETC65-125<\/a> trang li\u1ec7t k\u00ea c\u00e1c t\u00f9y ch\u1ecdn 1P\u20134P v\u00e0 80 A, 100 A v\u00e0 125 A.<\/p>\n

    \"ETC65-125<\/figure>\n

    \u0110\u00e2y l\u00e0 c\u00e1c \u0111\u01b0\u1eddng d\u1eabn c\u1ea5p d\u00f2ng s\u1ea3n ph\u1ea9m, kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1c m\u00e3 SKU c\u00f3 th\u1ec3 thay th\u1ebf cho nhau. H\u00e3y x\u00e1c nh\u1eadn ch\u00ednh x\u00e1c c\u1ef1c, \u0111i\u1ec7n \u00e1p, d\u00f2ng \u0111i\u1ec7n, \u0111\u1eb7c t\u00ednh d\u00f2ng c\u1eaft, kh\u1ea3 n\u0103ng c\u1eaft, k\u00edch th\u01b0\u1edbc v\u00e0 ph\u1ee5 ki\u1ec7n tr\u01b0\u1edbc khi ph\u00ea duy\u1ec7t BOM.<\/p>\n

    T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n