Multi-contact, Labor-saving, Environment-friendly, Nextgeneration Safety-door Switch • Lineup includes three contact models with 2NC/1NO and 3NC contact forms and MBB models in addition to the previous contact forms 1NC/1NO, and 2NC. • M12-connector models are available, saving on labor and simplifying replacement. • Standardized gold-clad contacts provide high contact reliability. Applicable to both standard loads and microloads. • Variety of metallic heads available.