Turck BL20-2DO-R-NC Digital Relay Output Module

The TURCK BL20-2DO-R-NC digital relay output module adds two normally closed relay channels to the BL20 I/O system, delivering fail-safe contact switching for field devices in PLC automation. Powered from the BL20 backplane at 24 VDC, its galvanically isolated, potential-free outputs switch up to 250 VAC or 30 VDC at 2 A per channel and are suitable for controlling contactors, solenoid valves, motors, and alarm devices. Designed as a plug-in, hot-swappable module with IP20 protection, it measures 12.6 x 74.1 x 55.4 mm and uses screw terminal or cage clamp base modules for connections. Diagnostics LEDs report channel status, and this module carries CE, cULus, Class I Division 2, Zone 2 approvals for broad industrial use within the BL20 architecture.