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The single-beam safety light barrier serves for the vertical securing of access to danger zones. With multiple-axis arrangements the relevant prescriptions (e.g. EN 999) must be taken into consideration, as these lay down the distances for the light axes.
When used to secure access, danger points should not be reachable by crawling under or climbing through the barrier, or by reaching over or through it. The number and distance of the light axes depend on the evaluation of risk and on the prescriptions relating to the individual machine.
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