Phoenix Contact 1291193 The ex i-Feed and input signal conditioner is designed to handle a range of measuring transducers with 2-, 3-, and 4-conductor inputs, transmitting signals at either passive or active levels up to 20 mA. It features a single-channel setup, is compatible with HART protocols, includes standard configuration options such as three-way isolation, and achieves a Safety Integrity Level of 3 in accordance with SIL standards, utilizing push-in connections for easy installation.