Fieldbus couplers connect instruments to the home-run cable also known as trunk. The fieldbus couplers are mounted in the field near the field device providing for simple working procedures. They come as simple passive associated apparatus, or as wiring interfaces with short-circuit protection and power limiting explosion protection.

The Trunk is Protected from Short Circuits

A topology with trunk and spurs is considered most reliable, easy to understand as it is similar to existing multicore installations, and thus accepted as a defacto industry standard. While working on devices, it is possible that short circuits can occur on the spur connection. This is why our fieldbus installation technology offers individual protection at each spur. When a short circuit occurs, the current is limited, and the segment remains in operation. When the fault is removed or repaired, the spur automatically resumes operation. This important feature enables the use of fieldbus even in the most demanding environments.

Explosion Protection

Any explosion protection method is possible (FISCO, Entity, High-Power-Trunk) with our reliable and proven field distribution components. Options exist for practically any connection and any hazardous area.

Enclosure Solutions

Enclosures with aluminum, GRP and stainless-steel provide the required IP class with options and accessories selectable. Find the respective datasheets in each category of distribution product. Pre-engineered, these solutions provide for short lead times and high quality through repeat accuracy.