{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7138-4CF03-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7138-4CF03-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7138-4CF03-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7138-4CF03-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens ET200S fail-safe digital output module, 2 F-DO, 24 V DC, 2 A, SIL 3, 30 mm width, 52 mm depth, 81 mm height.","salesMarkdown":"## Two fail-safe outputs, 2 A each, SIL 3 rated The Siemens 6ES7138-4CF03-0AB0 is an ET200S fail-safe digital output module with two outputs, each rated 2 A at 24 V DC. It is certified for use in safety applications up to SIL 3 and Category 4. ## Output current and temperature derating Each output channel delivers 2 A rated current, but the total module current is temperature-dependent: 7 A up to 55 °C, dropping to 6 A at 40 °C and again at 60 °C. This means at 55 °C ambient you can run both channels at 2 A with headroom; above that, the total current envelope tightens. The module includes electronic short-circuit protection with a response threshold of 5 to 12 A for a short to ground, and 25 to 45 A for a short to P potential. It also detects wire-break conditions on the output lines. ## Switching frequency and load types Resistive loads switch at up to 30 Hz; inductive loads at only 0.1 Hz. The 10 Hz limit on lamp loads reflects the inrush current stress. For a solenoid or contactor coil, plan on a 10-second minimum cycle time. Cable runs can extend to 200 m, shielded or unshielded, which covers most cabinet-to-machine distances in a plant. ## Diagnostics and status indication The module reports a group error via a red SF LED, monitors the load voltage supply (PWR green LED), and makes diagnostic data readable over the backplane bus. It detects missing load voltage and short circuits, feeding that back to the safety CPU. Power draw from the backplane bus is 28 mA at 24 V DC; total module power loss is 4 W typical.","metaTitle":"Siemens 6ES7138-4CF03-0AB0 ET200S 2 F-DO, 24 V DC, 2 A","metaDescription":"Siemens 6ES7138-4CF03-0AB0 ET200S fail-safe digital output module. 2 outputs, 2 A each at 24 V DC, SIL 3 capable. Current production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Output Modules"],"specifications":{"Depth":"52 mm","Width":"30 mm","Height":"81 mm","Inputs":"5 byte","Outputs":"5 byte","Wire-break":"Yes","Lower Limit":"12 Ω","Upper Limit":"1 kΩ","For Uprating":"No","Short-circuit":"Yes","Shielded, Max.":"200 m","acc. to EN 954":"4","Weight, approx.":"88 g","lifecycle_stage":"current","Power loss, typ.":"4 W","Rated value (DC)":"24 V","Unshielded, Max.":"200 m","On Lamp Load, Max.":"10 Hz","up to 40 °C, max.":"6 A","up to 55 °C, max.":"7 A","up to 60 °C, max.":"6 A","Between The Channels":"No","Diagnostics function":"Yes","For Signal \"1\", Min.":"L+ (-2,0 V), current sourcing switch: L+ (-1,5 V), voltage drop on current sinking switch: max. 0.5 V","Group error SF (red)":"Yes","Missing Load Voltage":"Yes","Isolation tested with":"500 V DC","SIL acc. to IEC 61508":"Up to SIL 3","Response threshold, typ.":"Response threshold (short-circuit): 5 to 12 A; response threshold (external short-circuit to ground): 5 to 12 A; response threshold (external short-circuit to P potential): 25 to 45 A","Short-circuit protection":"Yes; Electronic","Number of digital outputs":"2","With Inductive Load, Max.":"0.1 Hz","With Resistive Load, Max.":"30 Hz","For Signal \"1\" Rated Value":"2 A","Controlling a digital input":"No","Reverse polarity protection":"No","Rated load voltage PWR (green)":"Yes","Diagnostic information readable":"Yes","For Redundant Control Of A Load":"No","from backplane bus 24 V DC, max.":"28 mA","From load voltage L+ (no load), typ.":"100 mA","For Signal \"0\" Residual Current, Max.":"0.5 mA","Between The Channels And Backplane Bus":"Yes","Status indicator digital output (green)":"Yes","with resistive load, up to 50 °C, max.":"10 A","Between the channels and load voltage L+":"No","Performance level according to ISO 13849-1":"e","Limitation of inductive shutdown voltage to":"L+ (-2x 47 V)","for signal \"1\" permissible range for 0 to 60 °C, max.":"2.4 A","for signal \"1\" permissible range for 0 to 60 °C, min.":"20 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$203.20","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=331488&mlfb=6ES7138-4CF03-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7138-4CF03-0AB0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7138-4CF03-0AB0","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/6ES7138-4CF03-0AB0 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}}