{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7138-4FA01-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7138-4FA01-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7138-4FA01-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7138-4FA01-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC DP, ET200S electronic module, 4/8 F-DI PROFIsafe, 24V DC, 30 mm width, up to Category 4 (EN 954-1), 6ES7138-4FA01-0AB0.","salesMarkdown":"The Siemens 6ES7138-4FA01-0AB0 is a PROFIsafe fail-safe digital input module for the ET200S distributed I/O system. It provides 8 single-channel or 4 two-channel inputs rated at 24 V DC, with a 30 mm width that fits the standard ET200S rail. The module is parameterizable and carries diagnostics, including a group error SF (red) LED and per-channel green status indicators. ## Safety ratings that matter for your BOM This module is rated for SIL 2 (single-channel) and SIL 3 (two-channel) per IEC 61508, and Category 3 (single-channel) or Category 4 (two-channel) per EN 954-1. It also meets AK 4 (one channel) and AK 6 (two channel) per DIN VDE 0801. For a safety loop, the two-channel wiring is what gets you to SIL 3 / Cat. 4 — plan the field wiring accordingly. ## Electrical and timing constraints Input signal thresholds: a logic '0' is -30 to +5 V, and a logic '1' is +15 to +30 V. Typical current draw at signal '1' is 3.7 mA. The module draws 300 mA from the backplane bus and dissipates 4 W typ. Switching times range from 0.3 ms to 17 ms for both 0→1 and 1→0 transitions. The output voltage sits at min. L+ (-1.5 V). Short-circuit protection is electronic with a response threshold between 0.7 A and 1.8 A. Note: reverse polarity protection is not provided, so check your 24 V DC supply polarity.","metaTitle":"Siemens 6ES7138-4FA01-0AB0 ET200S F-DI, 24V DC, SIL 3","metaDescription":"Siemens 6ES7138-4FA01-0AB0 ET200S safety module, 8 DI, 24V DC, 30mm, SIL 3 (IEC 61508), Cat. 4 (EN 954-1). Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Depth":"52 mm","Width":"30 mm","Height":"81 mm","Inputs":"6 byte","Outputs":"4 byte","Rated value":"300 mA","2-Wire Sensor":"No","For Signal \"0\"":"-30 to +5 V","For Signal \"1\"":"+15 to +30 V","Shielded, Max.":"200 m","acc. to EN 954":"Cat. 3 (single-channel), Cat. 4 (two-channel)","Parameterizable":"Yes","Weight, approx.":"78 g","lifecycle_stage":"current","Power loss, typ.":"4 W","Rated value (DC)":"24 V","Unshielded, Max.":"200 m","Number of outputs":"2","At \"0\" To \"1\", Max.":"17 ms","At \"0\" To \"1\", Min.":"0.3 ms","At \"1\" To \"0\", Max.":"17 ms","At \"1\" To \"0\", Min.":"0.3 ms","Between The Channels":"No","Diagnostics function":"Yes","For Signal \"1\", Typ.":"3.7 mA","Group error SF (red)":"Yes","acc. to DIN VDE 0801":"AK 4 (one channel), AK 6 (two channel)","SIL acc. to IEC 61508":"SIL 2 (single-channel), SIL 3 (two-channel)","Type of output voltage":"min. L+ (-1.5 V)","Number of digital inputs":"8; 8 single channel, 4 two-channel","Short-circuit protection":"Yes; Electronic (response threshold 0.7 A to 1.8 A)","Reverse polarity protection":"No","Permissible Range, Lower Limit":"0 mA","Permissible Range, Upper Limit":"300 mA","Between The Channels And Backplane Bus":"Yes","Status indicator digital input (green)":"Yes","Between the channels and load voltage L+":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$88.88","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e5444c2a6d45e12e1a825e1259ff12c7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=536605&mlfb=6ES7138-4FA01-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7138-4FA01-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Will 6ES7138-4FA01-0AB0 fit into a panel designed for 6ES7136-6AB00-0CA1?","answer":"No. The 6ES7136-6AB00-0CA1 is 15 mm wide; this module is 30 mm wide. It requires a different base unit (BU type A0 or A1 for the analog module, while the safety DI uses a specific fail-safe base unit). The wiring and addressing are also different."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7138-4FA01-0AB0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6ES7138-4FA01-0AB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}