Siemens 6ES5464-8MB11 Programmable Logic Controller Module

Siemens 6ES5464-8MB11 is a four-channel, isolated analog input module for SIMATIC S5 controllers (the 464-8 family), offering four ±1 V inputs intended for low-voltage sensor signals and process data in S5-90U/95U/100U, ET 100U, and ET 200U configurations. Each channel is isolated from the backplane to minimize ground loops and cross-talk, with an input range of ±1 V for precise low-voltage measurements. The module measures 135 mm high, 100 mm long, and 45 mm wide and weighs about 0.20 kg. It ships in factory-sealed packaging (new in box) and is identified by Siemens part number 6ES5464-8MB11 (also listed as 6ES54648MB11). The product lifecycle indicates it is a discontinued item, reflecting its status in legacy systems while still available through some distributors for repair or refurbishment. Typical applications include reading low-level analog signals from sensors in older S5-based automation setups.