{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7138-4CA50-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7138-4CA50-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7138-4CA50-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7138-4CA50-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC DP, PM-E power module for ET 200S, 24-48 V DC with diagnostics, 6ES7138-4CA50-0AB0, 15 mm wide, 10 A at 60 °C.","salesMarkdown":"## What this PM-E power module does The Siemens 6ES7138-4CA50-0AB0 is a PM-E power module for the ET 200S distributed I/O system, supplying 24 to 48 V DC to the load circuit and providing diagnostics via the backplane bus. It occupies a single 15 mm wide slice on the ET 200S rail, with a depth of 52 mm and height of 81 mm, fitting into the standard ET 200S mounting profile. Rated for 10 A continuous at 60 °C ambient, this module handles the load current for a cluster of ET 200S electronic modules downstream. Typical power loss is 0.5 W, keeping the thermal contribution to the enclosure minimal. ## Diagnostics and protection features The module reports group errors via a red SF LED and indicates the presence of load voltage with a green PWR LED, giving the commissioning engineer immediate visual feedback at the rail. Missing load voltage can be configured to either disable outputs or generate a diagnostic alarm, a useful option for cold-chain or safety-instrumented applications where a voltage loss must be flagged rather than silently tolerated. Reverse polarity protection is built in, so a swapped L+ and M on the field wiring won't damage the module. Short-circuit protection must be provided externally — Siemens recommends an automatic circuit breaker with tripping characteristic B or C, sized to the branch. ## Isolation and wiring notes Galvanic isolation is provided between the rated load voltage and the backplane bus, and between power modules, tested at 500 V DC. The module draws up to 12 mA from the load voltage L+ for its own electronics, negligible against the 10 A load capacity. Data width on the backplane is 3 bytes, which the ET 200S interface module maps into the process image for diagnostics and status. No successor or replacement part has been announced; the 6ES7138-4CA50-0AB0 is the current PM-E module for 24-48 V DC ET 200S applications.","metaTitle":"Siemens 6ES7138-4CA50-0AB0 PM-E Power Module, 24-48 V DC, 10","metaDescription":"SIMATIC DP PM-E power module for ET 200S, 24-48 V DC with diagnostics, 10 A at 60 °C, 15 mm wide. Active lifecycle, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Depth":"52 mm","Width":"15 mm","Height":"81 mm","Remark":"3 byte","Weight, approx.":"35 g","lifecycle_stage":"current","Power loss, typ.":"0.5 W","Rated value (DC)":"24 to 48 V DC","Primary/Secondary":"Yes; between rated load voltage and backplane bus, between power modules","up to 60 °C, max.":"10 A","Group error SF (red)":"Yes","Missing Load Voltage":"Disable / enable","Isolation tested with":"500 V DC","Short-circuit protection":"No; external (e.g. automatic circuit breaker), tripping characteristic B, C","Reverse polarity protection":"Yes","Rated load voltage PWR (green)":"Yes","from load voltage L+ (without load), max.":"12 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$26.29 – $52.00","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=246423&mlfb=6ES7138-4CA50-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7138-4CA50-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What is the width of 6ES7138-4CA50-0AB0?","answer":"The module is 15 mm wide, occupying one slot on the ET 200S rail."},{"question":"What is the depth of 6ES7138-4CA50-0AB0?","answer":"The depth is 52 mm, fitting the standard ET 200S mounting profile."},{"question":"Does 6ES7138-4CA50-0AB0 include short-circuit protection?","answer":"No, short-circuit protection must be provided externally — Siemens recommends an automatic circuit breaker with tripping characteristic B or C."},{"question":"What voltage range does 6ES7138-4CA50-0AB0 support?","answer":"The rated load voltage is 24 to 48 V DC, with reverse polarity protection built in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7138-4CA50-0AB0","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/6ES7138-4CA50-0AB0 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}}