Fuse Components

Yes. Body tube, internal liner, insulating washers and the small parts around them can all come from one drawing set, which is usually the point of the enquiry. Parts that are metal, or that need plating or a spring property, we will tell you plainly are outside our scope rather than quote them through a third party.

Vulcanized fiber or an engineered synthetic arc-quenching liner when the design relies on gas generation, ceramic-filled epoxy or glass melamine when the duty is arc proximity with tracking. Everything else in the link is structure or a form, and those can be cheaper. If you are not certain which surface is arc-facing in your design, send the link drawing and we will mark it up.

The interface is inspected as a feature in its own right, not inferred from the tube OD. Bore, end squareness and engagement length are gaged against the datum scheme on your print, and where the print does not define a datum we ask before quoting, because guessing there is how a batch scatters at assembly.

Wall is set by the clearing duty and the mechanical load, not by the voltage class alone, so there is no honest single number to quote. What we do is take your breaking capacity and the material you have chosen, then check the wall against both the dielectric duty and the burst or crush load before the price goes out.

Yes, including thin-wall and small-diameter parts with tight tolerances for compact cylindrical links. That work is where the tube process matters most, because a small bore with a thin wall leaves very little room for run-out, so we discuss the machining and the gaging method before the sample.

We can, and it is a common route for a second source. Be aware that from a sample alone we measure what exists rather than what the assembly needs. If the only reason you are re-sourcing is that the current part is marginal, send the drawing as well so we can fix the marginal dimension instead of copying it.

We supply the material COA traceable to the incoming certificate, first-article inspection per your plan, in-process dimensional records and final inspection reports. Dielectric, immersion and burst testing are available on request where the duty calls for them. The certification of the finished link stays with you as the link maker; we provide the evidence the tube and liner contribute.

Material certificate traceable to the incoming lots, dimensional records at each station, final inspection report, and RoHS and REACH declarations for the standard grades. If your customer requires a specific format or a certificate of compliance per shipment, tell us at enquiry stage so it is built into the process rather than added afterwards.

It depends on whether the part needs tooling and on the process. A rolled fiber tube to a known drawing is faster than a wound or moulded body, and a first article adds time on any new part. We quote lead time per part and per finish rather than giving one number for the family.

It depends on whether the size is stock or made to drawing. Standard bores ship in sample quantities. Custom tooling, special laminates and wound parts carry a minimum tied to setup, and we state it at quotation rather than after the sample is approved.

Yes, and sometimes that is the right answer when your tube supply is already settled and only the arc-quenching liner is under review. Send the bore it has to fit and the clearing duty, and we will quote the liner against the interface rather than against a nominal wall.

Then we say so and point at the right family. High-voltage duties that genuinely need a ceramic body, or designs where a standard commercial part is the correct answer, are both cases where telling you no costs us one order and saves you a field failure.