The Siemens 6ES7131-4BD51-0AA0 electronic module is designed for integration with ET 200S distributed I/O systems, supporting efficient and reliable signal acquisition in industrial environments. Each module provides four digital input channels for 24 V DC source signals, making it suitable for applications that require high-density signal input in a compact format. With a width of just 15 mm, the 6ES7131-4BD51-0AA0 allows for space-saving installation in control cabinets, and each package contains five modules for convenient replacement or system expansion. Brand: Siemens Compact 15 mm width for efficient use of cabinet space Includes five modules per packing unit for flexible deployment Supports fast delivery and comes from large available stock