Siemens 20/20MI-11SF

The Siemens 20/20MI-11SF is a compact flame detector designed for reliable fire detection using triple infrared (IR3) technology. Operating within a voltage range of 18 to 32 VDC, this device can effectively monitor flame presence over distances from 1 to 10 meters, extending up to 40 meters under suitable conditions. It features two relays for both alarm and fault signals, though these do not support explosion-proof environments. Additionally, the detector offers a 0-20 mA current output that can be configured as either sink or source, and supports communication via RS-485 with Modbus compatibility. With a detection angle of 100 degrees horizontally and vertically, the unit allows for flexible installation. The 20/20MI-11SF includes both manual and automatic built-in tests to ensure ongoing operational reliability. This flame detector is available through BSP Automation, providing a dependable solution for industrial safety monitoring.