Miniature Limit switch
Benefits
- Compact design
- small range of actuators
- Silver and gold contacts available
- Various switching functions
Description
BARTEC miniature switches are used in areas with of limited space for a flameproof switching element. They are especially suitable for applications in valves, thermostats, push switches, servo components, level metres and switching gears. The smallest Ex d miniature switch in the world is encapsulated in a plastic enclosure. The leads or cable tail are potted in at the base. The standard version of the BARTEC miniature switches contains fine silver contacts. Other contact materials such as gold plated silver or solid gold are available for low currents and voltages.
Switches with connector cables have been approved by PTB with EC model test certification. The switches can therefore be mounted at any time into devices and systems which offer mechanical protection – no further testing is required. The connector cable is cast into the back of the switch. The wires are colour-coded. The (standard) cable length is 3 m; other lengths are available on request.
Technical Data
| Protection class | IP 54 (IEC 60529) |
|---|---|
| Dimensions | see data sheet |
| Material | duroplast, plunger/additioanl actuator stainless steel |
| Installation | Tightening torque of fixing screws max. 0.6 Nm |
| Mechanical life | > 107 switching cycles |
| Weight | with 0.5 m cores apporx. 25 g with 1 m cable approx. 50 g |
| Voltage | see data sheet |
| Current | see data sheet |
| Connection | cast-in cores or cable 0.75 mm² |
