Cable de conexión de silicona 105–250°C, 300–1000 V, estilos UL AWM

Cable de conexión de silicona para hornos, conductores de motores y cableado de aparatos

La silicona es el aislamiento de alta temperatura que se elige cuando el cable aún debe doblarse. Los fluoropolímeros ofrecen mejor resistencia química y paredes más finas, pero se endurecen; un conductor de silicona Clase 6 permanece blando a 200 °C y soporta la curva del instalador incluso en la tercera visita de servicio. También es sin halógenos y arde hasta ceniza de sílice no conductora en lugar de una pista de carbono. TEBAOFLEX fabrica diecisiete estilos UL AWM de 105 °C a 250 °C y de 300 V a 1000 V.

La gama se organiza por dos factores: la pared sigue la tensión, aproximadamente 0.40 mm para 300 V y 0.76–0.78 mm para 600 V; la temperatura sigue el compuesto, no la pared. Por eso UL 3133 a 150 °C y UL 3135 a 200 °C son ambos de 600 V y difieren menos de 0.1 mm en diámetro. Elija primero la clase de temperatura, después la tensión y luego la clase de trenzado.

• Adecuado para: motor and generator leads, industrial ovens and dryers, luminaires and lighting, domestic and commercial appliances, heaters, transformer and coil leads, panel wiring.
• Confirmar antes de realizar el pedido: UL style, voltage, AWG size, stranding class, colour and reel length.
• Elija otra construcción cuando: the wire rubs on steel — add a fiberglass braid — or when chemical exposure or a thin wall matters more than flexibility, where PTFE, PFA or FEP are the answer.

Comparing insulations first? The matriz de selección de conductores para alta temperatura puts silicone next to the fluoropolymers, and the wider range sits under Cables de alta temperatura.

Construcción

Un cable de conexión de silicona es unipolar, con conductor de cobre recocido y pared de caucho de silicona extruido. Todo lo que distingue un estilo UL de otro se reduce a tres decisiones: grado del compuesto de silicona, espesor de pared y finura del trenzado.

1. Director: annealed copper, solid or stranded, tinned or bare. Strandings run from a single 0.255 mm wire at 30 AWG through 7-, 10-, 16- and 26-strand constructions, and into Class 5 and Class 6 flexible ropes where the wire has to move.
2. Aislamiento: extruded silicone rubber, cured by high-temperature vulcanisation. Nominal wall is about 0.40 mm on the 300 V styles and 0.76–0.78 mm on the 600 V styles.
3. Compound grade: the temperature rating comes from the silicone formulation, not the thickness. The same 0.76 mm wall appears at 150 °C and at 200 °C on different compounds.
4. Colores y marcación: a 21-colour standard range with custom colours and striping to order, surface printed with the style, size and rating.

Por qué silicona y no un fluoropolímero

Three properties keep silicone in production despite PTFE and PFA being better on paper. It stays genuinely flexible hot, so motor leads and oven looms survive being handled at temperature. It is halogen free, and when it does burn it leaves a silica ash that still insulates, so a fire in one loom does not immediately become a phase-to-frame fault. And it takes compression and vibration without cold flow. What you give up is wall thickness, abrasion resistance and chemical resistance — silicone scuffs easily, which is why a fiberglass braid goes over it anywhere it can rub.

La clase de trenzado decide la flexibilidad

Two wires of the same UL style and the same AWG can behave completely differently in the hand. At 24 AWG the same style is built as 7 strands of 0.20 mm, 11 of 0.16 mm, 19 of 0.12 mm or 133 of 0.05 mm — identical conductor area, wildly different bend behaviour and a 0.16 mm spread in finished diameter. If the wire has to be routed by hand into a hot assembly, say so at enquiry and we will quote the stranding to match rather than the cheapest construction that meets the style.

El par de 150 °C y 200 °C a 600 V

UL 3133 and UL 3135 are the same idea at two temperature grades: 600 V, a wall around 0.76–0.78 mm, tinned copper, and diameters that overlap within a tenth of a millimetre. You cannot tell them apart with a micrometer. Order by the marking, not by the measurement.

Aplicaciones

El cable de conexión de silicona se usa donde la temperatura ambiente es alta y el cable aún debe manipularse: dentro de hornos y secaderos, en devanados de motores, alrededor de luminarias y dentro de aparatos. Es cableado interno de equipos, no cable de instalación.

Equipos y servicio para los que está diseñado este conductor

• Motor and generator leads — winding heat plus repeated flexing at the exit, the single most common silicone application.
• Industrial ovens, dryers and conveyor furnaces — element wiring, control cabinet looms, door and sensor leads.
• Domestic and commercial appliances — cookers, catering equipment, dishwashers, sterilisers.
• Lighting and luminaires — fixture internal wiring where the lamp runs hot and the loom is assembled by hand.
• Transformer, coil and solenoid leads — where the lead-out must tolerate impregnation and heat.
• Heaters and heating assemblies — element connections up to the temperature grade of the compound.
• Panel and switchgear wiring — where halogen-free and low-smoke behaviour is specified.
• Sauna, solarium and process heating equipment — high ambient with regular maintenance access.

Dónde la silicona es la respuesta equivocada

• Abrasión contra estructura de acero — silicone scuffs and cuts. Specify a fiberglass-braided construction over the silicone core, or protect the bundle.
• Aggressive chemicals, solvents or fuels — a fluoropolymer is the correct choice; silicone swells.
• Tight space and dense looms — at 600 V a silicone wall is roughly twice a PTFE wall. If the connector shell is full, move to PTFE or PFA.
• Above 250 °C — outside the range of these compounds entirely.
• Instalación fija en edificios o enterramiento directo — AWM appliance wiring material carries no such listing.

Nota sobre la silicona de alta tensión

Silicone is also the standard insulation for high-voltage DC lead wire — UL style 3239 covers constructions from roughly 3 kV up to 60 kV depending on wall, with UL 10475 continuing the same idea in 8 AWG through 2 AWG. Those are a different product with a different buyer: X-ray and imaging equipment, photomultiplier and image-intensifier supplies, electrostatic precipitators, signs and ignition systems. The styles on this page are the 300 V to 1000 V appliance and equipment range. If you need a high-voltage silicone lead, tell us the kV class and we will quote it separately.

Referencia cruzada de un conductor existente

Silicone lead wire is often called out on a drawing as SRML, SF-2 or simply “silicone lead wire” with a temperature and a voltage, rather than by UL style. Send a photograph of the printed marking plus the measured overall diameter and the conductor size and stranding, and we will identify the matching style before quoting — particularly useful between the 150 °C and 200 °C 600 V grades, which measure the same.

Especificaciones

Dieciocho estilos en cuatro grados de temperatura. Encuentre la temperatura y después la tensión; la pared y el diámetro se derivan de ahí.

Estilos de cable de conexión de silicona de un vistazo

El estilo 3530 se publica a 150 °C o 200 °C y 600 V, por lo que aparece en ambos grados; especifique la clasificación necesaria.

Dimensiones y datos eléctricos

Diámetro exterior nominal en mm para los tres estilos de volumen, lado a lado. UL 3132 es la construcción de pared fina de 300 V; UL 3133 y UL 3135 son el par de 600 V a 150 °C y 200 °C.

Conductor resistance depends on the stranding actually supplied, so treat the column above as the value for the common construction in each size; very fine multi-strand ropes run higher. Diameter tolerance is typically ±0.10 mm. Larger sizes than 12 AWG are built to order.

Peso del conductor, UL 3133 (150 °C 600 V)

Otras propiedades

Normas

Normas, métodos de ensayo y referencias de conformidad aplicables al cable de conexión de silicona en estos estilos UL AWM.

Qué determina un estilo UL AWM y qué no

A UL AWM style fixes the insulation material, the temperature rating and the voltage rating for appliance wiring material. It does not fix the stranding, and on silicone that is the omission that matters — the same style and size can arrive as a stiff 7-strand or a rope-lay Class 6, and only one of them will route through your assembly. Specify the stranding class alongside the style.

La silicona en un incendio

The reason silicone keeps its place in appliance and equipment wiring has as much to do with what happens when it fails as with normal service. Silicone rubber is halogen free, so it does not contribute acid gas, and it burns to silicon dioxide — a white ash that is still an insulator. A silicone loom that has been through a fire can hold off voltage where a carbonised organic insulation would already have flashed over. That is a material property, not a rating, and it is not a substitute for a circuit-integrity cable where one is specified.

Certificación TEBAOFLEX

Jiangsu TEBAOFLEX Special Cable Co., Ltd posee el certificado UL UL-US-2449012-0 y el certificado cUL UL-CA-2437036-0, ambos fechados el 27 de diciembre de 2024 conforme al informe E542560-20241225, y el certificado VDE 40060055 fechado el 28 de marzo de 2025. Son certificaciones a nivel de empresa. Envíe el estilo UL y tamaño exactos que desea pedir; confirmaremos el alcance de aprobación aplicable antes de que se comprometa y emitiremos la documentación de ensayo con el envío.

Documentación suministrada con un pedido

• Plano de construcción y datos dimensionales para el estilo, tamaño y trenzado acordados
• Registros de ensayos rutinarios del lote de producción
• Certificado de conformidad que hace referencia a las normas acordadas
• Carrete y lista de empaque con detalles de marcación y color

Para el alcance de una norma específica, consulte directamente al organismo emisor — por ejemplo, la Comisión Electrotécnica Internacional o UL Solutions.