The Siemens 6ES7138-4FA00-0AB0 is an electronic module designed for integration with the SIMATIC ET200S distributed I/O system. This module provides 4 or 8 fail-safe digital inputs (F-DI) with PROFIsafe protocol, ensuring a high level of operational safety for industrial automation environments. Operating at 24V DC and offering a compact form factor with a width of just 30 mm, the 6ES7138-4FA00-0AB0 is suitable for safety applications up to Category 4 as defined by EN954-1 standards. The robust construction and reliable signal processing make the 6ES7138-4FA00-0AB0 a dependable choice for critical production line control systems. Brand: Siemens Meets safety standards up to Category 4 (EN954-1) for demanding industrial environments Compact 30 mm width allows for efficient use of control cabinet space Supports fast delivery and is available from stock for minimized production downtime