The Siemens 6ES7138-4FB02-0AB0 is an electronic module designed for use within the SIMATIC ET200S distributed I/O system. This module supports four fail-safe digital outputs (F-DO) for PROFIsafe applications, operating at DC 24V/2A. With a compact width of 30 mm, the 6ES7138-4FB02-0AB0 meets safety requirements up to Category 4 (EN954-1), making it suitable for demanding industrial environments. The module is also compatible with both PROFIBUS and PROFINET networks when used with the IM151-3 HF interface module, enhancing system flexibility and integration in modern production setups. Brand: Siemens Highly reliable safety functions for Category 4 (EN954-1) compliance Supports integration in both PROFIBUS and PROFINET networks for versatile connectivity Compact 30 mm width saves valuable control cabinet space