Canvas Epoxy (Phenolic Cotton) Fuse Tubes
Phenolic cotton canvas tubes for cost-effective mechanical fuse bodies. Canvas epoxy (phenolic cotton) tubes are the mechanical, lower-cost option for fuse bodies that are not arc-facing. They machine well and hold threads and shoulders. We supply them wound and machined to ID/OD/length, with faces and shoulders finished for the assembly.
Technical specifications
| Material | Phenolic cotton canvas laminate |
| Properties | Good mechanical, machinable |
| Use | Non-arc-facing bodies and forms |
| Standard | Applicable standard to be confirmed against your drawing (TBC). |
| Operating temperature | -40 °C to +105 °C |
| Dielectric strength | ≥ 20 kV/mm (per ASTM test method) |
💾 Datasheets & Test Reports
Download the technical data sheet for this product (PDF).
Applications by industry
- LV power fuse bodies and rejection fuse barrels
- Knife-blade fuse carriers and holders
- Protective sleeve bodies for gG/gM fuse links
- Distribution fuse link barrels in panel boards
- Motor-starter and small transformer primary fuses
- Custom fuse body blanks machined to DIN / IEC 60269 contours
Why phenolic cotton canvas for this application
Phenolic cotton canvas (canvas epoxy) laminate is machined into rigid, non-arc-facing fuse barrels where dimensional stability and low cost matter more than full arc resistance. Cotton-canvas grade absorbs less shock than paper when struck, giving a sturdier feel in draw-out fuse carriers.
Not for the internal arc-facing wall of a high-breaking-capacity link; pair canvas with an outer arc-quenching bore. Soak/swell risk in humid service unless varnished.
Standards: IEC 60269 (fuse dimensions), UL 248 (fuse body), RoHS / REACH compliant.
Feature and remaining-wall review
Canvas Epoxy (Phenolic Cotton) Fuse Tubes is ground or turned on ID and OD, with CNC knurling, threading, slotting and cutting to drawing. Before quotation we check feature depth, edge distance and remaining wall against the critical geometries, and capability is confirmed on your drawing rather than from a blanket tolerance.
Inspection and traceability
We state the control plan with you. Batch traceability links raw material lot to finished part.
- First-article inspection (FAI) per your plan
- In-process dimensional checks at every station
- Batch certificate of conformance (COA) supplied on request
- Lot traceability to incoming material certificate
- Dielectric strength and insulation resistance testing available on request
Related components
Phenolic Kraft Paper Tubes
Related insulation component from the WELLELE catalog.
Phenolic Cotton Cloth Laminated Rod
Related insulation component from the WELLELE catalog.
Custom Vulcanized Fiber Tubes
Related insulation component from the WELLELE catalog.
Common questions
Which grade of Canvas Epoxy (Phenolic Cotton) Fuse Tubes do I need?
Give us the service conditions for Canvas Epoxy (Phenolic Cotton) Fuse Tubes: voltage, temperature and the loads it has to carry. We point you to the grade in the table above, and where the duty is unusual we say so rather than guess.
What material is used for Canvas Epoxy (Phenolic Cotton) Fuse Tubes?
The material is Phenolic cotton canvas laminate. Alternate grades can be quoted against your drawing.
Is material certification supplied with Canvas Epoxy (Phenolic Cotton) Fuse Tubes?
Yes. Every batch of Canvas Epoxy (Phenolic Cotton) Fuse Tubes carries a material certificate of analysis, and we can add first-article inspection and further electrical testing if your specification asks for them.
Can Canvas Epoxy (Phenolic Cotton) Fuse Tubes be made to our drawing?
For Canvas Epoxy (Phenolic Cotton) Fuse Tubes, bore, wall and cut length follow your drawing. Give us the drawing and the target quantity, and feasibility and price come back together.
Engineering Guides & Selection Notes
Engineering notes covering the sizing and specification questions around Canvas Epoxy (Phenolic Cotton) Fuse Tubes.
Get pricing for Canvas Epoxy (Phenolic Cotton) Fuse Tubes
Send the drawing for Canvas Epoxy (Phenolic Cotton) Fuse Tubes with your annual volume. We check the material against the duty and tolerance on it, verify ID, OD, wall and features, then come back with manufacturability notes and pricing for Canvas Epoxy (Phenolic Cotton) Fuse Tubes.