Medium and High Voltage Fuse Link Bodies to Drawing
Cylindrical fuse bodies for MV/HV links, with end-cap interfaces machined to spec. We build the non-ceramic portion of MV/HV fuse links: the cylindrical body, any internal liner and the machined interface to the end caps. Dimensions follow your drawing, not a catalog size. Bodies are produced in ceramic epoxy glass, vulcanized fiber or synthetic arc-quenching composite depending on the clearing du
Cylindrical fuse bodies for MV/HV links, with end-cap interfaces machined to spec. We build the non-ceramic portion of MV/HV fuse links: the cylindrical body, any internal liner and the machined interface to the end caps. Dimensions follow your drawing, not a catalog size. Bodies are produced in ceramic epoxy glass, vulcanized fiber or synthetic arc-quenching composite depending on the clearing du
Technical specifications
| Voltage class | MV / HV per drawing |
| Body form | Cylindrical, drawn to spec |
| Materials | Ceramic epoxy glass / vulcanized fiber / arc-quenching composite |
| Interface | Machined to end-cap drawing |
| Docs | Incoming, in-process and final inspection records |
💾 Datasheets & Test Reports
Download the technical data sheet for this product (PDF).
Information required for quotation
| Base tube | Approved material grade, ID, OD, wall and conditioning as per drawing |
| Datums | Drawing datum scheme and measurement reference |
| Key dimensions | Feature positions, depths, pitch and diameters reviewed before quotation |
| Thread / profile | Standard or custom profile, class, depth, engagement and gage method |
| Other features | Holes, slots, steps, chamfers, cuts and marking |
| Acceptance | Tolerances, sampling, gages, FAI and inspection report |
| Order | Prototype and production quantity, packaging and delivery target |
Applications by industry
- MV fuse link barrels in distribution and utility networks
- HV current-limiting fuse bodies to customer drawing
- Expulsion-type fuse link tubes for pole-mounted cutouts
- Transformer protection MV links
- Capacitor bank MV fuse bodies
- Drop-out and striker-fuse link assemblies
Why vulcanized fiber for this application
MV/HV links demand a body that withstands the pre-arcing thermal pulse and contains the fibre/bore geometry until the element parts. Vulcanized fibre meets this at lower cost and weight than ceramic for outdoor cutouts, and machines to the contours of a drawn link body.
Confirm the breaking-capacity rating and bore design against the drawn duty; fibre-grade and venting are always application-specific. Not for continuous service above 105 °C core.
Standards: IEC 60282-1, IEC 60269-2, ANSI C37.47 (distribution cutouts).
Feature and remaining-wall review
ID/OD ground or turned; CNC knurling, threading, slotting and cutting to drawing. Feature depth and remaining wall reviewed pre-quotation. Review feature depth, edge distance and remaining wall against critical geometries. Capability is confirmed on your drawing, not 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
Ceramic-Filled Epoxy Fiberglass Tubes
Related insulation component from the WELLELE catalog.
Synthetic Arc-Quenching Fuse Tubes
Related insulation component from the WELLELE catalog.
Small-Diameter Thin-Wall Fuse Tubes
Related insulation component from the WELLELE catalog.
Common questions
What is the standard for vulcanized fiber tubes used in fuse assemblies?
Vulcanized fiber tubes for fuse bodies are referenced to IEC 60269 for body dimensions and end-cap geometry. Material follows ASTM D2491 (fish paper) and UL 94 V-0 for flammability. Specify the fuse link type and voltage class and we confirm the grade and tolerance.
What tolerance can you hold on vulcanized fiber tubes?
On thin-wall vulcanized fiber sections we typically hold ±0.05 mm on ID and OD. Knurl pitch, major/minor diameter and position are reviewed per drawing. Capability is confirmed against your print, not published as a blanket claim.
Is vulcanized fiber suitable for arc-facing fuse applications?
No. For arc-facing surfaces, use ceramic-filled epoxy glass, melamine or synthetic arc-quenching composites. Vulcanized fiber is for non-arc-facing mechanical bodies and end caps.
Can you supply COA and batch traceability?
Every batch is traceable to the incoming material certificate. Material COA, first-article inspection (FAI), in-process checks and final inspection reports are supplied per your plan on request.
Can you machine the end-cap interface?
Every batch is traceable to the incoming material certificate. Material COA, first-article inspection (FAI), in-process checks and final inspection reports are supplied per your plan on request.
Engineering Guides & Selection Notes
Related technical articles that help specify this product.
Get pricing for Medium and High Voltage Fuse Link Bodies to Drawing
Attach the drawing with annual volume. We check the material against your duty and tolerance, verify ID / OD / wall / features, and respond with manufacturability notes and pricing.