Fischer Freedom Series — Push-Pull Circular Connectors

Fischer Connectors' Freedom Series represents the de facto standard in push-pull circular connectivity for applications where field connection errors have operational or safety consequences. The push-pull locking mechanism eliminates partial connection: it's either fully latched (audible and tactile) or doesn't connect, unlike threaded connectors that can be half-tightened under extreme temperature, vibration, or heavy gloves.

In defense, the Freedom Series is used in portable communications systems, C4ISR interconnect cables in armored vehicles, field battery connectors, and optical and thermal sensor power connections. In industry, it applies to ATEX control panels, high-pressure process equipment, repeatable wellhead connections, and marine instrumentation connectors.

The multipin configuration (2 to 26 pins) with standard and custom layouts allows integrating power, data signal, and fiber optics into a single connector, eliminating multiple fittings in the junction box. The IP68 body (submersion to 10 m) and IP69 (pressure washing) withstands high-pressure chemical washes in pharmaceutical, food, or field maintenance environments. Emar Systems supplies the complete Freedom line in panel and cable versions, plus assembly and continuity testing service.