It is in the lower-voltage area that it is particularly important to observe safety regulations for the protection of humans, machinery and the environment. Comprehensive specifications, codes of practice and regulations are essential when choosing suitable protection and safety components. For this purpose, the ABB range of products includes a wide selection of safety components for the most varied applications in plant and machinery engineering.

Thus, in the switch cabinet or on the machine, safety switching devices in series C57x ensure the requisite redundancy of safety-related contacts. Position switches, P30, P50 and P70 are suitable for access monitoring on a machine or to limit movements. Safety switches from the SafeLine series prevent the erroneous start-up of a motor, e.g. during servicing or repairs. But the range of ABB safety components also include K 70 modular signal lamps for the indication of operational statuses, KSB vandalproof flush-mounting signal lamps for alarm and warning indication inside or out, as well as EMERGENCY OFF buttons in the Combiline series with an enclosure rating of up to IP 65. The TVOC arc-monitoring system and safety-oriented control devices round off the range offered in the safety field.

Devices from the safety-oriented automation systems AC31-S and ABB Procontic T200-S demonstrate the know-how embodied in them. As small decentralised control units locally and independently perform both safety and operating functions.
The local devices are already constructed internally with two channels and monitor themselves: a redundant CPU is consequently no longer required. Connection of the I/O devices to the safety-oriented central processing unit takes place via safety-oriented field bus over a length of up to 500 m.