There are plenty of variants of a safety switch or safety sensor and they all have one thing in common: The safe detection of an open door, flap or bonnet. BERNSTEIN offers many different products in this area for a wide range of applications.
In addition to secure door monitoring, these products also have other features that offer added value.
For example, our safety hinge switch SHS3 which combines hinge and safety switch in just one product. As well as the non-contact safety sensor SRF, which provides a wide range of application and sensor information thanks to its diagnostic function.
Safety switches and sensors to protect people and machinery
» For us at BERNSTEIN, good safety technology is characterised primarily by the fact that it reliably prevents damage from people and machines. This includes that the individual components are securely protected from manipulation attempts. Modern safety technology also fulfils the requirement of networking components with each other. Diagnostic functions are the icing on the cake. In this way, safety technology components generate real added value. « – Nicole Bernstein | Board member
According to the Machinery Directive, the manufacturer of a machine must ensure that a risk assessment of his machine or system is carried out, for example to determine the safety requirements applicable to the machine.
As part of the risk assessment, hazards emanating from the machine are identified in the risk analysis and their risks are then assessed, taking various aspects into account.
A necessary reduction of the risk can be achieved either by eliminating the hazard or by reducing the aspects. In practice, this usually involves enclosing the danger zone. However, for various reasons (cleaning, maintenance, work process) there must be access to this area.
This access is made possible by a movable guard (usually a door, hood or flap), which must be interlocked. This guard is usually monitored by a safety switch or sensor.
A safety switch or safety sensor monitors the movable guards of a machine or system. They ensure that users cannot open them if a dangerous situation exists. This is because there may still be a risk even if the machine has already been stopped.
A classic example of this is overrunning saw blades. It is imperative that the operator is denied access until the dangerous movement has come to a complete stop.
Safety switches
With guard locking
A safety switch with guard locking ensures that safety guards, safety doors and other covers are kept closed as long as a dangerous condition exists.
Particularly flexible: With the SLC and SLK solenoid interlocking variants, we also offer safety switches with separate actuator and guard locking.
Safety switches
With separate actuator
A safety switch with separate actuator is a positive opening position switch. The switching element and actuator are separated by design.
When actuated, the switching element and actuator are functionally combined or separated. When the actuator is pulled out, the positive break contact is always open.
Safety sensors
Non-contact
Non-contact safety sensors with RFID technology are a particularly smart variant for safety gate monitoring.
Not only do they work completely wear-free, they also have a high tolerance for sagging doors or covers. And offer a high level of tamper protection thanks to various coding levels.
