Our Switch Probe "FK-783"
The FK-783: Our Highlight in the Switch Probe Segment
Born from a development project for the automotive industry, our FK-783 switch offers the following key features:
- Normally closed contact
- Potential-free housing
- Compact design
- Precisely controlled switching distance
- Long lifespan with a high number of switching cycles
- Available with or without connection cable
The FK-783 can be installed in various ways and is particularly notable for its compact design. You can find the exact technical specifications in the table below.


Typical Applications of Switch Probes:
- Switch Probe Presence Check
This checks whether a component is present in the correct position or not. - Switch Probe Status Query
The switch probe allows you to signal whether, for example, a protective cover is open or closed. - Switch Probe Activation
By pressing a button, the switch probe triggers the next step in the process.
Use of Switch Probes in Industries Such As:
- Test technology, cable harness testing, and assembly testing
- Adapter construction for in-circuit testing or functional testing, as well as in in-line systems
- Special machine construction and testing systems
Thus, the FK-783 switch probe is particularly important for ensuring high-quality assurance—but it is also indispensable in today's automation technology.
Installation Options for the FK-783 Switch Probe


Various Process Steps in Switch Probes
The manufacturing and implementation of switch probes follow specific process steps that are critical for the functionality and reliability of the switching devices.
- Material Selection
Choosing the right material for switch probes is essential. High-quality metals such as copper, silver, or gold are often used for their excellent conductivity and durability. - Shaping
In this step, the switch probes are precisely shaped. Modern technologies such as stamping and laser processing ensure high accuracy and consistency of the contacts. - Coating
To improve conductivity and prevent corrosion, switch probes are often coated with special materials. Common coating materials include nickel, silver, and gold. - Assembly
The precise assembly of switch probes into the switching device is another critical step. Automated systems ensure high efficiency and accuracy during this process. - Quality Testing
After assembly, the switch probes undergo comprehensive quality testing. This includes electrical tests, mechanical stress tests, and long-term tests to ensure the contacts meet the required standards. - Final Assembly and Packaging
After passing quality control, the switch probes are integrated into the final products and packaged. Careful packaging ensures that the contacts are not damaged during transport.
By precisely following these process steps, the high quality and reliability of switch probes are ensured, which is crucial for the functionality of many electrical devices.
Switch Probes: Quality Assurance and Automation Technology
Switch probes are particularly demanding electrical contacts. Their mechanical and electrical properties must be advanced enough to ensure a long lifespan and withstand a large number of contact cycles. And that’s exactly what the FK-783 switch probe can do: With a lifespan of at least 500,000 cycles, it meets even the highest customer requirements.
We are happy to provide personal advice regarding your specific application needs. Contact our team via email at contact@fixtest.de , by phone at +49 (0)7733 / 5056-0, or through our contact form.