{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7142-4BF00-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7142-4BF00-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7142-4BF00-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7142-4BF00-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens ET 200PRO digital output module, 6ES7142-4BF00-0AA0, 8 channels, 0.5 A per channel at 24 V DC, SIL 2 / PL d, compact 45 mm width.","salesMarkdown":"## 8 outputs at 0.5 A, safety-rated The Siemens 6ES7142-4BF00-0AA0 is an ET 200PRO digital output module delivering 8 channels, each rated 0.5 A at 24 V DC. That 0.5 A per channel is the rated value for a signal \"1\" — enough to drive small contactors, indicator banks, or solenoid valves directly, but you'll want to check the inrush if you're switching DC coils. It carries a SIL 2 rating per IEC 62061 and Cat. 3 / PL d per ISO 13849-1, so it slots into safety circuits up to that level without an external safety relay. The module reports a group error (SF, red LED) and supports diagnostic alarms — readable over the backplane. ## Wiring and protection Each output is short-circuit protected — the module detects a short to ground and responds with a typical threshold of 0.7 A. Reverse polarity protection is built in (load increasing, not destructive). The isolation between channels and the backplane bus is tested at 707 V DC type test. Maximum cable length is 30 m, shielded or unshielded. Switching frequency with resistive load tops at 100 Hz; with inductive load it drops to 0.5 Hz. On lamp load, max 1 Hz — so this isn't a high-speed output, it's a robust industrial sink. ## Physical fit and power budget The module occupies 1 byte of address space. Status indicators per channel (green LED) and a group error LED are on the front face. Diagnostic information is readable, and the module supports redundant control of a load.","metaTitle":"Siemens 6ES7142-4BF00-0AA0 Digital Output Module, 8-ch 0.5A","metaDescription":"Siemens 6ES7142-4BF00-0AA0 ET 200PRO digital output module, 8 channels at 0.5 A per channel, 24 V DC. SIL 2 / PL d, diagnostic alarm.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Digital Output Modules"],"specifications":{"Depth":"35 mm","Width":"45 mm","Height":"130 mm","Lower Limit":"48 Ω","Upper Limit":"4 kΩ","For Uprating":"No","Short-circuit":"Yes; Short-circuit of outputs to ground; module by module","Shielded, Max.":"30 m","Weight, approx.":"140 g","lifecycle_stage":"current","Diagnostic alarm":"Yes","Power loss, typ.":"2 W","Rated value (DC)":"24 V","Unshielded, Max.":"30 m","On Lamp Load, Max.":"1 Hz","up to 55 °C, max.":"4 A","Between The Channels":"No","Diagnostics function":"Yes","For Signal \"1\", Min.":"2L+ (-0,8 V)","Group error SF (red)":"Yes","Isolation tested with":"707 V DC (type test)","SIL acc. to IEC 62061":"SIL 2","Response threshold, typ.":"0.7 A","Short-circuit protection":"Yes","Number of digital outputs":"8","With Inductive Load, Max.":"0.5 Hz","With Resistive Load, Max.":"100 Hz","For Signal \"1\" Rated Value":"0.5 A","Controlling a digital input":"Yes; Isolation between 1L+ and 2L+ is no longer provided, as 1M and 2M are jumpered","Reverse polarity protection":"Yes; against destruction; load increasing","Address space per module, max.":"1 byte","Diagnostic information readable":"Yes","For Redundant Control Of A Load":"Yes","Category according to ISO 13849-1":"Cat. 3","from backplane bus 3.3 V DC, max.":"30 mA","For Signal \"0\" Residual Current, Max.":"0.5 mA","Between The Channels And Backplane Bus":"Yes","Status indicator digital output (green)":"Yes","Performance level according to ISO 13849-1":"PL d","from load voltage 2L+ (without load), max.":"30 mA","Limitation of inductive shutdown voltage to":"2L+ (-47 V)","Between Backplane Bus And All Other Circuit Components":"Yes","Suitable for safety-related tripping of standard modules":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$109.00 – $219.16","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4dc5ebeeb3f33b7d11f350a19204f78c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=25531&mlfb=6ES7142-4BF00-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7142-4BF00-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the diagnostic features of 6ES7142-4BF00-0AA0?","answer":"It supports diagnostic alarms, readable diagnostic information, a group error LED (SF, red), and per-channel status indicators (green). Short-circuit protection triggers a diagnostic response at a typical threshold of 0.7 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7142-4BF00-0AA0","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/6ES7142-4BF00-0AA0 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}}