Phenolic Kraft Paper Tubes for Fuse Liners and Forms

Name: Phenolic Kraft Paper Tubes for Fuse Liners and Forms
Brand: WELLELE

Resin-impregnated kraft paper tubes for liners, forms and low-cost fuse bodies. Phenolic kraft tubes are the economical body for many LV links and liners. The resin-impregnated paper gives dimensional stability and arc resistance at a lower cost than fiberglass systems. We supply them wound to ID/OD and length, with the wall and resin content set from your duty and volume.

WELLELE Phenolic Kraft Paper Tubes - manufacturer, specifications and applications

Technical specifications

Material	Resin-impregnated kraft paper
Form	Helically or convolutely wound
Service	LV fuse liners and bodies
Cost	Lower than epoxy glass systems

💾 Datasheets & Test Reports

Download the technical data sheet for this product (PDF).

Bakelite Paper Tube Test Report

Applications by industry

Fuse liner tubes and inner bore forms inside metal barrels
LV fuse carrier insulating sleeves
Transformer winding formers and core tubes
Paper-base insulating tubes for panel and starter duty
End-closure sleeves for low-cost fuse assemblies
Insulating forms where cost dominates performance margin

Why phenolic kraft paper for this application

Phenolic paper is the economical liner and former where the arc is handled elsewhere and the part mainly isolates and stays dimensionally stable enough to seat a fuse element.

Not for arc-facing or high-CTI duty; moisture pick-up distorts the tube. Pair with a barrier sleeve where the bore sees heat.

Standards: IEC 60893, ASTM D709, UL 94 HB/V-0 (grade dependent).

Wrong application risk: sustained arcing makes epoxy glass and phenolic laminate track at the surface, even though both carry mechanical and dielectric duty well. Send the duty for Phenolic Kraft Paper Tubes as voltage class, arc exposure, continuous temperature and chemical environment, and we will flag the correct grade in engineering review.

Feature and remaining-wall review

We machine Phenolic Kraft Paper Tubes to drawing: ID and OD ground or turned, CNC knurled, threaded, slotted and cut. Feature depth, edge distance and remaining wall get reviewed before the quote, and capability is confirmed on your print, not from a blanket tolerance.

For dimensional stability on Phenolic Kraft Paper Tubes, tell us the humidity and the temperature band. Conditioning is settled with the drawing, before production.

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

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G5/G9 Melamine Tubes

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Common questions

How is Phenolic Kraft Paper Tubes for Fuse Liners and Forms specified?

Specification for Phenolic Kraft Paper Tubes starts from the assembly duty, not from a datasheet number. Give us the voltage, the working temperature and the mechanical loads, and we confirm which grade fits.

What material is used for Phenolic Kraft Paper Tubes for Fuse Liners and Forms?

The material is Resin-impregnated kraft paper. It is supplied as helically or convolutely wound. Alternate grades can be quoted against your drawing.

Is material certification supplied with Phenolic Kraft Paper Tubes for Fuse Liners and Forms?

Traceability for Phenolic Kraft Paper Tubes comes with each batch as a material certificate of analysis. First-article reports and dielectric testing run to the method you name.

Can Phenolic Kraft Paper Tubes for Fuse Liners and Forms be made to our drawing?

Phenolic Kraft Paper Tubes is made to the bore, wall and cut length on your drawing, and pricing is quoted against that drawing plus the run quantity.

Engineering Guides & Selection Notes

Related reading on the selection and specification decisions behind Phenolic Kraft Paper Tubes.

Get pricing for Phenolic Kraft Paper Tubes for Fuse Liners and Forms

For Phenolic Kraft Paper Tubes, attach the drawing plus the annual volume. Material, tolerance, ID, OD, wall and features all get checked against it before we quote, and the manufacturability notes for Phenolic Kraft Paper Tubes come with the price.