Enhanced installation & cost reduction
Many complex machinery and plants are equipped with multiple safety guards. According to the Machinery Directive, they all need to be safe, which means that the machine builder must provide the required number of safety switchgear. The installation of the switchgear of course consumes a lot of time and money.

The BNS 33, BNS 36 and BNS 260 safety detectors from the Schmersal Group can facilitate this job. For these series, adapters are now available, enabling a series-wiring of the safety sensors of this type.

With the adapters, the safety sensors - equipped with M8 interconnectors - can be simply series – or series- / parallel-wired.

The number of safety sensors in this series-wired chain is limited to 30 devices; or to a cable length of 50 m. Adapters are available for the BNS safety sensors with one NC and one NO contact and with two NC contacts. The installation is simple: if the user needs to set up, for instance, a series-wiring or a series-/parallel-wiring of six safety sensors, he only needs five identical Y-adapters. The sixth safety sensor then is plugged in into the adapter of the previous sensor as termination.