{"id":2436,"date":"2026-10-05T18:27:50","date_gmt":"2026-10-05T18:27:50","guid":{"rendered":"https:\/\/yocl.com\/?wpr2_import=2e509240b19f83d92f6381df5fd95e1c1003e3b881e94d75bdeaf65c2d211895"},"modified":"2026-10-05T18:27:50","modified_gmt":"2026-10-05T18:27:50","slug":"what-is-a-wire-ferrule","status":"publish","type":"post","link":"https:\/\/yocl.com\/vi\/what-is-a-wire-ferrule\/","title":{"rendered":"\u0110\u1ea7u C\u1ed1t D\u00e2y \u0110i\u1ec7n L\u00e0 G\u00ec? C\u00e1c Lo\u1ea1i, K\u00edch C\u1ee1 v\u00e0 Kh\u1ea3 N\u0103ng T\u01b0\u01a1ng Th\u00edch V\u1edbi \u0110\u1ea7u N\u1ed1i"},"content":{"rendered":"

A wire ferrule is a tubular metal sleeve crimped around the stripped strands of a conductor to prepare its end for insertion into a compatible terminal.<\/strong> It gathers the strands into a contained end. The terminal still provides the clamping connection; the ferrule\u2019s type, size and finished shape must suit that connection.<\/p>\n

Also called a bootlace ferrule<\/strong>, wire-end sleeve<\/strong> ho\u1eb7c cord-end ferrule<\/strong>, this component is specified by more than collar colour. To understand a ferrule, separate its conductor capacity, sleeve geometry and permitted use in the receiving terminal.<\/p>\n

What does a wire ferrule do?<\/h2>\n

\u1ed0ng b\u1ecdc kim lo\u1ea1i bao quanh c\u00e1c s\u1ee3i d\u00e2y d\u1eabn l\u1ed9 ra. Vi\u1ec7c b\u1ea5m t\u1ea1o th\u00e0nh \u1ed1ng b\u1ecdc quanh ch\u00fang \u0111\u1ec3 \u0111\u1ea7u \u0111\u00e3 chu\u1ea9n b\u1ecb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 l\u1eafp v\u00e0o nh\u01b0 m\u1ed9t b\u00f3 \u0111\u01b0\u1ee3c ch\u1ee9a. Trong phi\u00ean b\u1ea3n c\u00f3 c\u1ed5, \u0111\u1ea7u v\u00e0o b\u1eb1ng nh\u1ef1a bao quanh \u0111\u1ea7u v\u00e0o d\u00e2y; ph\u1ea7n kim lo\u1ea1i nh\u00f4 ra \u0111i v\u00e0o khu v\u1ef1c ti\u1ebfp x\u00fac c\u1ee7a \u0111\u1ea7u cu\u1ed1i.<\/p>\n

Ph\u1ea1m vi c\u00f4ng khai c\u1ee7a UL 486F, \u0110\u1ea7u cos tr\u1ea7n v\u00e0 c\u00f3 v\u1ecf b\u1ecdc<\/a> m\u00f4 t\u1ea3 \u0111\u1ea7u cos l\u00e0 b\u1ed9 ph\u1eadn chu\u1ea9n b\u1ecb \u0111\u1ea7u d\u00e2y d\u1eabn, gi\u00fap k\u1ebft n\u1ed1i d\u00e2y b\u1ec7n v\u00e0 ng\u0103n c\u00e1c s\u1ee3i b\u1ecb cong ng\u01b0\u1ee3c trong qu\u00e1 tr\u00ecnh l\u1eafp. N\u00f3 bao g\u1ed3m c\u00e1c thi\u1ebft k\u1ebf cho m\u1ed9t d\u00e2y d\u1eabn \u0111\u1ed3ng b\u1ec7n ho\u1eb7c hai d\u00e2y c\u00f9ng k\u00edch c\u1ee1.<\/p>\n

Ch\u1ee9c n\u0103ng n\u00e0y kh\u00e1c v\u1edbi \u0111\u1ea7u cos b\u1eaft bu l\u00f4ng v\u00e0o ch\u1ed1t ho\u1eb7c \u0111\u1ea7u n\u1ed1i hai \u0111\u1ea7u c\u00e1p. \u0110\u1ea7u cos chu\u1ea9n b\u1ecb \u0111\u1ea7u cho m\u1ed9t thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i kh\u00e1c. UL 486F c\u0169ng ph\u00e2n bi\u1ec7t \u0111\u1ea7u cos v\u1edbi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i d\u1ea1ng ghim \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp trong c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ea7u n\u1ed1i kh\u00e1c; m\u1ed9t \u0111\u1ea7u kim lo\u1ea1i tr\u00f4ng t\u01b0\u01a1ng t\u1ef1 kh\u00f4ng thi\u1ebft l\u1eadp kh\u1ea3 n\u0103ng thay th\u1ebf cho nhau.<\/p>\n

DIN 46228-4:2020-03<\/a> x\u00e1c \u0111\u1ecbnh c\u00e1c \u1ed1ng b\u1ecdc \u0111\u1ea7u d\u1ea1ng \u1ed1ng c\u00f3 \u1ed1ng b\u1ecdc b\u1eb1ng nh\u1ef1a. Gi\u1edbi thi\u1ec7u ch\u00ednh th\u1ee9c gi\u1ea3i th\u00edch vi\u1ec7c ch\u1ee9a c\u00e1c s\u1ee3i d\u00e2y v\u00e0 d\u1ec5 d\u00e0ng l\u1eafp \u0111\u1ea7u cu\u1ed1i h\u01a1n. \u0110i\u1ec1u \u0111\u00f3 h\u1ed7 tr\u1ee3 m\u1ee5c \u0111\u00edch c\u1ee7a th\u00e0nh ph\u1ea7n, m\u00e0 kh\u00f4ng thi\u1ebft l\u1eadp r\u1eb1ng m\u1ecdi \u0111\u1ea7u cu\u1ed1i \u0111\u1ec1u y\u00eau c\u1ea7u n\u00f3.<\/p>\n

C\u00e1c lo\u1ea1i \u0111\u1ea7u cos d\u00e2y ch\u00ednh<\/h2>\n

S\u1ef1 ph\u00e2n bi\u1ec7t \u0111\u1ea7u ti\u00ean h\u1eefu \u00edch nh\u1ea5t l\u00e0 m\u1ed9t d\u00e2y d\u1eabn ho\u1eb7c hai<\/strong>, theo sau l\u00e0 c\u1ea5u tr\u00fac c\u00f3 c\u1ed5 ho\u1eb7c kh\u00f4ng c\u00f3 c\u1ed5<\/strong>. Danh m\u1ee5c c\u1ee7a YOCL s\u1eafp x\u1ebfp ch\u00fang th\u00e0nh c\u00e1c d\u00f2ng E, EN v\u00e0 TE:<\/p>\n\n\n\n\n\n\n\n
C\u1ea5u t\u1ea1o<\/th>\nB\u1ed1 c\u1ee5c hi\u1ec3n th\u1ecb<\/th>\nNh\u1eefng g\u00ec c\u1ea7n ki\u1ec3m tra ri\u00eang<\/th>\n<\/tr>\n<\/thead>\n
\u0110\u1ea7u cosse b\u1ecdc c\u00e1ch \u0111i\u1ec7n cho d\u00e2y \u0111\u01a1n E<\/a><\/td>\nM\u1ed9t \u1ed1ng l\u1ed3ng v\u1edbi c\u1ed5 c\u00e1ch \u0111i\u1ec7n<\/td>\nK\u00edch th\u01b0\u1edbc m\u1ed9t d\u00e2y d\u1eabn, chi\u1ec1u d\u00e0i \u1ed1ng v\u00e0 kho\u1ea3ng h\u1edf c\u1ed5 \u00e1o<\/td>\n<\/tr>\n
Ferrule \u0111\u01a1n cho d\u00e2y \u0111\u01a1n kh\u00f4ng c\u00e1ch \u0111i\u1ec7n<\/a><\/td>\n\u1ed0ng kim lo\u1ea1i tr\u1ea7n c\u00f3 \u0111\u1ea7u loe<\/td>\nK\u00edch th\u01b0\u1edbc d\u00e2y d\u1eabn, k\u00edch th\u01b0\u1edbc \u1ed1ng v\u00e0 c\u00e1ch b\u1ed1 tr\u00ed c\u00e1ch \u0111i\u1ec7n c\u1ee7a thi\u1ebft b\u1ecb<\/td>\n<\/tr>\n
Ferrule \u0111\u00f4i cho d\u00e2y \u0111\u00f4i c\u00f3 c\u00e1ch \u0111i\u1ec7n TE<\/a><\/td>\n\u1ed0ng chung v\u00e0 c\u1ed5 r\u1ed9ng cho hai d\u00e2y d\u1eabn<\/td>\nK\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed7i d\u00e2y d\u1eabn v\u00e0 kh\u1ea3 n\u0103ng ch\u1ea5p nh\u1eadn \u0111\u1ea7u cu\u1ed1i hai d\u00e2y \u0111\u00e3 ho\u00e0n thi\u1ec7n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\"Exterior
H\u00ecnh d\u1ea1ng v\u00e0 c\u1ea5u t\u1ea1o c\u1ed5 \u00e1o ph\u00e2n bi\u1ec7t c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m n\u00e0y; b\u1ea3n v\u1ebd kh\u00f4ng x\u00e1c \u0111\u1ecbnh dung l\u01b0\u1ee3ng d\u00e2y d\u1eabn ho\u1eb7c ph\u00ea duy\u1ec7t \u0111\u1ea7u cu\u1ed1i.<\/figcaption><\/figure>\n

\u0110\u00e2y l\u00e0 t\u00ean d\u00f2ng s\u1ea3n ph\u1ea9m YOCL, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 h\u1ec7 th\u1ed1ng \u0111\u1eb7t t\u00ean ph\u1ed5 qu\u00e1t cho m\u1ecdi nh\u00e0 cung c\u1ea5p. \u201cC\u00e1ch \u0111i\u1ec7n\u201d x\u00e1c \u0111\u1ecbnh c\u1ea5u t\u1ea1o c\u1ed5 \u00e1o; n\u00f3 kh\u00f4ng cung c\u1ea5p \u0111\u1ecbnh m\u1ee9c \u0111i\u1ec7n \u00e1p cho k\u1ebft n\u1ed1i \u0111\u00e3 ho\u00e0n th\u00e0nh. T\u01b0\u01a1ng t\u1ef1, \u201c\u0111\u00f4i\u201d x\u00e1c \u0111\u1ecbnh c\u00e1ch b\u1ed1 tr\u00ed d\u00e2y d\u1eabn d\u1ef1 \u0111\u1ecbnh, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 cho ph\u00e9p \u0111\u01b0a hai d\u00e2y v\u00e0o b\u1ea5t k\u1ef3 \u0111\u1ea7u cu\u1ed1i n\u00e0o.<\/p>\n

C\u00e1ch \u0111\u1ecdc k\u00edch th\u01b0\u1edbc \u0111\u1ea7u cos<\/h2>\n

Ti\u1ebft di\u1ec7n ru\u1ed9t d\u1eabn kh\u00e1c v\u1edbi \u0111\u01b0\u1eddng k\u00ednh<\/h3>\n

M\u1ed9t k\u00fd hi\u1ec7u nh\u01b0 1.5 mm\u00b2<\/strong> \u0111\u1ec1 c\u1eadp \u0111\u1ebfn ti\u1ebft di\u1ec7n ru\u1ed9t d\u1eabn. N\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a c\u00e1p, \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 c\u1ee7a \u0111\u1ea7u cos ho\u1eb7c \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a c\u1ed5 nh\u1ef1a c\u1ee7a n\u00f3.<\/p>\n

Read the ferrule’s declared conductor size alongside its drawing. The conductor determines the capacity needed inside the sleeve; the ferrule’s external dimensions affect the space needed at the terminal. Cable insulation and collar geometry add another fit question at the entry.<\/p>\n

American Wire Gauge (AWG) is another conductor-size designation. Use the exact AWG or metric sizes declared for the chosen product and conductor. A catalogue pairing is not a reason to assume every nearby AWG\/mm\u00b2 size is an approved substitute.<\/p>\n

Sleeve length is different from overall length<\/h3>\n

Ferrules of the same conductor capacity can have different sleeve lengths. On YOCL’s E-series drawing, F<\/strong> identifies the sleeve-length segment and L<\/strong> the overall length including the collar. These letter labels belong to that drawing; check the exact series before transferring their meanings.<\/p>\n

The published E-series<\/a> v\u00e0 TE-series<\/a> tables provide a useful example:<\/p>\n\n\n\n\n\n\n\n
ki\u1ec3u d\u00e1ng YOCL<\/th>\nC\u00e1ch b\u1ed1 tr\u00ed d\u00e2y d\u1eabn \u0111\u00e3 khai b\u00e1o<\/th>\nF sleeve length<\/th>\nL overall length<\/th>\n<\/tr>\n<\/thead>\n
E1508<\/td>\nOne \u00d7 1.5 mm\u00b2<\/td>\n8.0 mm<\/td>\n15.0 mm<\/td>\n<\/tr>\n
E1512<\/td>\nOne \u00d7 1.5 mm\u00b2<\/td>\n12.0 mm<\/td>\n19.0 mm<\/td>\n<\/tr>\n
TE 1508<\/td>\nTwo \u00d7 1.5 mm\u00b2<\/td>\n8.0 mm<\/td>\n15.5 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\"E-style
F and L follow YOCL's E-series drawing. Overall length includes the collar; check the exact series drawing rather than transferring letter labels between products.<\/figcaption><\/figure>\n

These are catalogue dimensions, not measurements of an installed connection. E1508 and E1512 accept the same declared conductor area but have different lengths. TE 1508 shares an 8 mm F dimension with E1508 while describing a different conductor arrangement. Neither area nor sleeve length alone determines terminal compatibility.<\/p>\n

The receiving terminal’s insertion depth and preparation instructions determine which length is appropriate. Overall length cannot substitute for sleeve length when comparing the metal portion with the terminal’s contact space.<\/p>\n

Twin notation and collar colour need their own reading<\/h3>\n

2 \u00d7 1.5 mm\u00b2 means two conductors, each 1.5 mm\u00b2.<\/strong> Their nominal areas add to 3 mm\u00b2, but that arithmetic does not turn the twin ferrule into a single-wire 3 mm\u00b2 model. Entry geometry, sleeve capacity, tooling and the permitted terminal arrangement remain separate requirements.<\/p>\n

Colour is useful only within the specified catalogue coding. YOCL’s E-series lists colour options by size group. Its TE 7508 and TE 7510 models both declare 2 \u00d7 0.75 mm\u00b2, yet list blue and grey collars respectively. Confirm the model and conductor designation rather than selecting a ferrule from colour alone.<\/p>\n

What makes a ferrule compatible with a terminal?<\/h2>\n

Compatibility involves three interfaces:<\/p>\n