Magnetic contact, built-in reed contact (opener, NC) for securing doors or windows. Switching distance: approx. 21mm. Contact load: max. 500mA / 6VA. Contact and magnet in cylindrical housing for 10mm bore hole. 2-wire connection via terminals. Dimensions: D 9 x 24mm (contact), D 9 x 15mm (magnet). Can be connected to the System 9000 bus via an input module 9000E1, 9000E8, 9000E16 or 9000EA4 (max. 5 contacts per bus input).