{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7142-1BD40-0XA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7142-1BD40-0XA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7142-1BD40-0XA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7142-1BD40-0XA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC DP, Extended module EM 142, ET 200X, 4 digital outputs DC 24V/2A, 5-pole M12, IP65, spare part.","salesMarkdown":"The 6ES7142-1BD40-0XA0 is a SIMATIC DP Extended Module EM 142 for the ET 200X family — a spare-part designation for a 4-output digital slice that switches 2 A per channel at 24 V DC through a 5-pole M12 connector, sealed to IP65. It's built for distributed I/O in wet or dusty environments — the IP65 rating means the module and its M12 ports stand up to washdown and airborne grit on a conveyor line or packaging cell. Each output is rated 2 A at 24 V DC for signal '1', with a permissible range from 5 mA minimum to 2.4 A maximum per channel — so it drives solenoids, contactors, and indicator lamps within that window, but not motor starters directly. The total current is temperature-dependent: 6 A per channel up to 20 °C, derated to 4 A at 55 °C. That derating curve matters if the module sits inside a crowded, warm cabinet or near a heat source. Switching speed hits 100 Hz with resistive loads, but drops to 1 Hz on lamp loads — incandescent inrush will limit cycle rate, so don't plan fast strobe or pulsed lamp control on these outputs. Short-circuit protection is electronic and per-channel, so a faulted output won't take down the whole group. The response threshold is typ. 3 A, which clears a short before the backplane fuse or power supply trips. The module measures 110 mm high, 87 mm wide (60 mm module width), and 55 mm deep — it mounts on the ET 200X base module and connects via the 5-pole M12 connector, so no terminal block wiring inside the panel. Power draw from the backplane bus is 28.5 mA at 5 V DC; the load voltage 2L+ draws up to 12 mA without load. Isolation is tested at 500 V DC between the backplane bus and all other circuits, with 75 V DC/60 V AC between different circuits. No channel-to-channel isolation, so outputs share a common reference — plan your load grouping accordingly. Marked as a spare part with lifecycle stage 'current' — meaning Siemens still supports it as a replacement for existing ET 200X installations, but it's not the go-to for new designs. The ET 200X platform has been superseded by ET 200SP and ET 200eco PN. For a line-down situation, this is the exact drop-in for a failed EM 142. No rewiring, no re-addressing — same M12 pinout, same backplane bus.","metaTitle":"6ES7142-1BD40-0XA0 SIMATIC DP EM 142, 4 DO 24V/2A, IP65","metaDescription":"SIMATIC DP EM 142 module, 4 digital outputs DC 24V/2A, M12, IP65, spare part. Rated 6 A at 20 °C, 4 A at 55 °C. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Output Modules"],"specifications":{"Depth":"55 mm","Width":"87 mm; Width module 60 mm","Alarms":"No","Height":"110 mm","Lower Limit":"12 Ω","Upper Limit":"4 kΩ","For Uprating":"No","Weight, approx.":"250 g","lifecycle_stage":"current","Power loss, typ.":"2.1 W","Unshielded, Max.":"30 m","On Lamp Load, Max.":"1 Hz","up to 20 °C, max.":"6 A","up to 55 °C, max.":"4 A","Between The Channels":"No","For Signal \"1\", Min.":"2L+ (-0,8 V)","Isolation tested with":"500 V DC","Response threshold, typ.":"3 A","Short-circuit protection":"Yes; Electronic","Number of digital outputs":"4","With Resistive Load, Max.":"100 Hz","Between Different Circuits":"75 V DC/60 V AC","For Signal \"1\" Rated Value":"2 A; At 24 V DC","Controlling a digital input":"Yes","For Redundant Control Of A Load":"Yes; only outputs of the same group","from backplane bus 5 V DC, max.":"28.5 mA","For Signal \"0\" Residual Current, Max.":"0.5 mA","For Signal \"1\" Permissible Range, Max.":"2.4 A","For Signal \"1\" Permissible Range, Min.":"5 mA","Status indicator digital output (green)":"Yes","from load voltage 2L+ (without load), max.":"12 mA","Limitation of inductive shutdown voltage to":"Typ. (2L+) -47 V","Between Backplane Bus And All Other Circuit Components":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$150.00 – $160.02","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/eaa2d09cb181f4f534f179bc0da588d0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=353584&mlfb=6ES7142-1BD40-0XA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7142-1BD40-0XA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source — 6ES7148-4FA00-0AB0?","answer":"The 6ES7148-4FA00-0AB0 is a different form factor (65 x 90 x 130 mm) with 16 digital inputs and SIL 3 / PL e safety rating — it will not drop into the same ET 200X base module or M12 wiring scheme. No direct second-source exists for the EM 142."},{"question":"What is the listed depth and width?","answer":"Depth is 55 mm; width is 87 mm overall (60 mm module width)."},{"question":"Will 6ES7142-1BD40-0XA0 drop into a panel specified around 6ES7148-4FA00-0AB0?","answer":"No — the 6ES7148-4FA00-0AB0 is a safety I/O module for ET 200SP, with different dimensions, backplane bus, and M12 pinout. The EM 142 only fits ET 200X basic modules."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7142-1BD40-0XA0","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/6ES7142-1BD40-0XA0 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}}