Switch Series Downloads Overview Sensing Zone Comparisons Part Numbering System Downloads (PDF) Authorized Distributors and Resellers Product Fact Sheets Form A {Normally Open): MAGNASPHERE N Series Product Sheet MAGNASPHERE TW Series Product Sheet Form B (Normally Closed): MAGNASPHERE L Series Product Sheet MAGNASPHERE S Series Product Sheet Other Panic Switch Series Data Sheet MAGNASPHERE Switch Sensing Zone Comparisons MAGNASPHERE Part Numbering System Catalog Magnasphere Security Products Catalog Magnasphere Switch Catalog SWITCH PRODUCTSForm A (Normally Open) N Series TW Series Form B (Normally Closed) L Series S Series