WKA-AX - Limit switch
You will stop the monorail exactly where you need to, or find out where it is at a given moment—one sensor, two operating modes.

// DESCRIPTION
What it is
The WKA‑AX limit switch operates in the ATUT‑NET intrinsically safe network and controls transport system drives in rooms at risk of methane and coal dust explosions.
You choose one of two operating modes. The WKA‑AX/B version switches off and interlocks the monorail drive when the train runs over the switch protecting the route, for example, at the beginning or end of the route. The WKA‑AX/S version informs the control system about the train's position on the route, for example, to correct the distance travelled.
You can order each version with a WAT/M22 cable gland, designation /W, or a ZAT/4/G cable connector, designation /Z, depending on the installation.
Technical data
- ATEX certificate No.
- FTZÚ 04 ATEX 0160
- Operating voltage
- max. 60 V
- Switching current
- max. 1.5 A
- Total number of contacts
- 4
- Maximum supply voltage
- 42 V for ia or ib circuits
- Device category
- I M1
- Design type
- Ex ia I
- Operating temperature range
- 0°C ÷ 50°C
- Enclosure protection rating
- IP54
- Dimensions
- 55 x 360 x 54 mm
- Weight
- 1 kg
- Number of cable glands/connectors
- 1