Balluff Safety
Balluff Safety

Safety with Balluff quality

Automation requires safety. Safety based on reliability. Balluff quality guarantees ultra-reliable solutions. Therefore, the Balluff safety concept also consists of products and solutions that fulfill their tasks over the course of years with the same reliability and precision. This includes a continually increasing number of products and components that contribute to minimizing the danger for humans and production plants. These components can easily be integrated into your system controller.

Unique: Safety over IO-Link

To increase the efficiency of safety concepts and integrate them in the system control, we have developed a safe I/O module: the Balluff Safety Hub, the first integrated safety solution via IO-Link! Safety over IO-Link is easy to integrate, responds quickly and can replace the control cabinet.

Safety over IO-Link links automation and safety technology. IO-Link handles communication down to the last meter and provides both sensor/actuator details as well as secure information. State-of-the-art, with the usual Balluff quality and all from a single source.

Freedom to change your system down to the last minute

By the scaling of topology and safety components, you can easily and quickly adapt your application to changing requirements at any time. Exceptionally flexible down to the last minute.

Product families

  • IO-Link blocks for safety applications

    Safety over IO-Link

    Safety over IO-Link combines safety technology and automation technology into one system, enabling you to get the best of both worlds. Our IO-Link blocks for safety applications permit applications up to PLe/SIL3 and are equally suitable for the connection of standard commercially available binary sensors and actuators. Thanks to universally usable M12 standard lines, you also save time and money, optimize the machine design, simplify commissioning and increase rationality. In addition, you can group the machine functions and/or machine areas on a module and in this way optimize the structural overview of the machine.

    IO-Link blocks for safety applications are remotely serviceable via the known IO-Link Diagnostic Tools and in the event of service can be replaced. Good for reducing downtimes to a minimum. Their suitability for use in the field permits equipment installations outside of the control cabinet. Even under harsh environmental conditions, such as the presence of dust, dirt, oils, water, emulsions, mechanical stresses and much more. You will see: In the future, all indications are for connecting actuators, safety switches, safety sensors and even reliable guard locking devices directly in the field.


    • Infrastructure for automation and safety technology up to PLe / SIL3 via IO-Link
    • Low maintenance costs when service is needed – diagnosis is thorough and component replacement easy
    • Cost savings thanks to uniform M12 single-ended cordsets
    • Fewer IP addresses necessary
    • Standardized wiring concept, reliable guard locking devices can be connected directly
    • Connection options for nearly any safety device
    IO-Link blocks for safety applications
  • Profisafe over IO-Link

    Safe signal acquisition and communication

    The secure Profisafe I/O module is the first to connect automation and safety technology via IO-Link. All you need is an IO-Link master to make a secure connection. Since the system is open all the way to the sensor level, you can connect nearly any safety device.

    By connecting the automation and safety technology, machine protection in one system is accomplished. This is because IO-Link supplies both sensor/actuator details and secure information. With Safety over IO-Link, you get the best of both worlds. And the integration of safety technology is more easily configured than ever before.

    The parameterization is done centrally via the controller. Information relevant to safety is transmitted directly via the master to the controller, the use of Profisafe via Profinet ensuring secure communication with the controller.


    • Infrastructure for automation and safety technology up to PLe / SIL3 via IO-Link
    • Low maintenance costs in case of service thanks to comprehensive diagnostics and easy device replacement
    • Lower costs by using uniform M12 single-ended cordsets
    • Reduction of the required IP addresses
    • Standardized wiring concept, reliable guard locking devices can be connected directly
    • Nearly any safety device can be connected
    Profisafe over IO-Link
    Profisafe over IO-Link

    Safety technology and automation. Safety over IO-Link connected.

  • Opto-electronic protective devices

    Reliable personal protection enables fast interaction between man and machine

    Ensure reliable personal protection without wasting space on protective fence structures. Opto-electronic protective devices from Balluff are economical whilst also providing a high level of protection against manipulation. Our contactless protective devices (BWS) detect fingers, hands or bodies in operating areas where machine operators can be endangered, and stop safety-critical movements immediately.


    • Finger, hand and body detection for convenient and fast interaction between man and machine
    • Defined protected area with infrared protection field – suitable for safety applications up to PLe/SIL3
    • Reliable machine stoppage of safety-critical movements
    • Better space utilization by eliminating the need for protective fence structures
    • High level of manipulation protection
    Opto-electronic protective devices
    Opto-electronic protective devices

  • Safety switches and safety sensors

    Sturdy locking mechanisms with the highest level of reliability

    Our safety switches and safety sensors for diverse application scenarios provide protection for both people and machines. You can optionally also obtain them as reliable guard locking equipment. The safety switches and sensors work with a variety of operating principles: Electromechanical and contactless, which means inductive, REED- or RFID-supported. In every case, you save time and money thanks to universal-use M12 standard cables. You also avoid wiring errors and get increased rationality.

    Our REED safety switches, which are insensitive to self-seating doors, ensure wear-free access control. With an optional spacing element, you can even install these magnetic coded safety sensors in a ferromagnetic environment. Furthermore, in some circumstances higher requirements are needed. In the monitoring of protective doors that are exposed to intense vibrations a transponder-coded RFID safety sensors will be beneficial, this is due to their high level of protection against manipulation.

    The direct monitoring of robot working ranges and limit positions of metallic tool carriers can be accomplished electromechanically, but even more so with our inductive safety sensors. Unlike traditional safety switches, they require no special mating part. As is the case with all Balluff safety switches and sensors, they can be directly connected to the secure I/O module, which bundles all signals and forwards them via IO-Link master module to the evaluation unit. As a bonus, you benefit from all the advantages of an Industry 4.0 solution.


    • A wide variety of application possibilities
    • In heavy duty housing versions with LED function indicator
    • Suitable for safety applications up to PLe/SIL3
    • Savings of time and money plus prevention of errors thanks to standardized M12 connection technology
    • Reduced installation expense and space requirements
    • Also suitable for heavy protective equipment
    • Manipulation-resistant
    • Tolerant of vibrations and inexact door guides
    Safety switches and safety sensors
  • Safety command devices

    Quickly stop machines if necessary

    Safe operation of automatic equipment falls under a company's due care responsibility. An Emergency Stop device must be available at all times as a supplementary safety measure. Our very visible and easily accessible command unit triggers an immediate Stop command whenever necessary and is therefore ideal for personnel protection functions.


    • Reliable disconnection of the power supply
    • Positive opening operation in accordance with IEC 60947-5-1
    • Pluggable connection with M12 (5-pin)
    • Turn-to-release mushroom pushbutton
    • High degree of protection against dust and water
    • Compact housing, easy installation
    Safety command devices
    Safety command devices