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  1. safetyproducts

    Do you require 2 coded magnetic reed switches per gate to achieve CAT 4?

    No. Two electro-mechanical devices are required per gate because an electro-mechanical device is subject to mechanical fatigue. To acheive a dual redundant circuit 2 limit switches are required incase 1 switch welds or remains in the gate closed position. In the case of a coded magnetic...

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