These are safe and Popular Safety Limit Switches available in the model of 1NC/1NO, 2NC, 2NC/1NO and 3NC contact forms. Their slower models are also available. To save labor and maintenance cost, M12-connector models can be taken. There is optimal contact reliability by dint of its standardized gold-clad contacts. With compatibility to standard loads and microloads, it is certified to standards of UL, EN (TÜV), and CCC.