The TURCK IM21-14EX-CDTRI is a 1-channel isolating switching amplifier used to connect NAMUR proximity sensors or mechanical contacts located in hazardous (Ex) areas to control systems in safe zones. It features a relay output and is designed for DIN rail mounting. This model provides electrical isolation between the input, output, and power supply, ensuring safe and reliable signal transmission. With built-in line fault detection and compact housing, it’s ideal for use in chemical plants, oil & gas, and process automation systems requiring intrinsic safety. Key Features: • 1-channel isolating switching amplifier • Input: NAMUR sensors or mechanical contacts • Output: Relay (changeover contact) • Intrinsically safe (Ex ia) input circuits • Line fault detection (LFD) • Electrical isolation between input, output, and supply • DIN rail mounting • Ideal for process industries and Ex zones