Technical resources
Good decisions start here.
The original catalogue, practical selection questions and a clear path to the information you still need.
Product reference / PDF
FESU product catalogue.
2023 edition.
Original product illustrations, series and variant references, published parameter tables and company information in a single document.
Download the catalogueHistorical reference. Confirm current specifications and availability before ordering.
01What should I include in a technical enquiry?
Share the tool type, switch model or reference, required function, voltage and current, estimated quantity, and destination market. Dimensions, wiring information and a photo of the current component are useful when available.
02Can I choose a replacement by appearance alone?
No. Similar-looking switches may differ in rating, circuit, terminals, actuator travel or approvals. Confirm the exact variant and validate the fit and electrical specification before use.
03Are the catalogue products currently available?
The website is based on the 2023 product catalogue, not a live stock feed. Availability, specifications, samples, minimum order quantities and lead times must be confirmed for the selected product.
04Are all products covered by the certificates shown?
No blanket coverage is claimed. The catalogue contains historical certificate material. Request a current certificate and check its manufacturer, covered models, rating and status for your order.
05How are samples, prices and shipping agreed?
These are quotation-specific. State your evaluation needs, estimated quantity and destination so the company can confirm sample terms, pricing, packing, shipping and payment arrangements.
06Can I buy and pay directly on this website?
This is a technical company website, not an online checkout. It helps you find product references and prepare a conversation. Orders and commercial terms are handled through confirmed company contact channels.
Start with your application
Small component.
Important conversation.
Share a model, a drawing or the switch you need to replace.