RD300LNRXL safety brake for roller garage doors, with micro switch cut off for activation of safety brake This is a Square safety Brake to fit onto roller garage door header plates with a 100x100 fixing, the centre is designed for a 18mm square tube end which is usually for a 70 oct barrel. the micro switch should be wired into your control system to cut the power should the brake become activated while in use. 70 Oct tube ends with a 18mm shaft and other roller garage door spares are available from our ebay shop.
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