{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7924-0BD20-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7924-0BD20-0BC0","canonicalUrl":"https://aoctrl.com/siemens/6ES7924-0BD20-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7924-0BD20-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300/1500 connection module, 6ES7924-0BD20-0BC0, 8 relay outputs, 24 V DC rated, 1 A, push-in terminals, DIN rail 35 mm.","salesMarkdown":"The Siemens 6ES7924-0BD20-0BC0 is a connection module for the SIMATIC S7-300 target system, designed for digital output signals via 8 relay outputs with single-pole normally-open contacts. Rated at 24 V DC and 1 A, it handles the typical 24 V control circuit loads found in PLC output cabinets — solenoids, contactor coils, indicator lamps — without needing an interposing relay for most applications. Push-in terminals accept stranded wire from 0.2 to 2.5 mm², and the terminal arrangement is 20 positions total: 8 x 2 for the relay outputs, plus 2 x L+ and 2 x M for the supply infeed. Maximum cable length between the front connector module and this connection module is 30 m, so keep the remote I/O drop within that run to avoid voltage drop issues on the 24 V DC loop. A 3.5 mm screwdriver blade is specified for the push-in release; no end cover plate is required, and the infeed function is built in — meaning you can daisy-chain the supply without an extra terminal block. ## Environmental limits and lifecycle Operating temperature range is 0 to 60 °C with storage from -40 to 70 °C, pollution degree 2 and overvoltage category II — standard for clean, dry control-room environments. No PE connection, no shield connection, and no disconnector on this module — it's a straight pass-through for relay output signals, not a field-side isolation point.","metaTitle":"Siemens 6ES7924-0BD20-0BC0 Connection Module, 8 Relay Output","metaDescription":"Siemens SIMATIC S7-300/1500 connection module with 8 relay outputs, rated 24 V DC / 1 A. DIN rail mount, push-in terminals 0.2-2.5 mm². Mature lifecycle, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC Accessories"],"specifications":{"Length":"76 mm","Stranded":"0.2 ... 2.5 mm²","Rated Value":"50 V","Disconnector":"No","Relay Design":"For output signals","Mounting Type":"DIN rail 35 mm, DIN rail 15 mm","PE connection":"No","Target System":"SIMATIC S7-300 / 1500","During Storage":"-40 ... +70 °C","at DC / maximum":"28.8 V","lifecycle_stage":"mature","During Operation":"0 ... 60 °C","Of The Enclosure":"grey","Mounting Position":"any","Shield Connection":"No","Degree Of Pollution":"2","Insulation Material":"other","Number Of Terminals":"20; 8 x O x 2; 2 x L+, 2 x M","Of The Light Source":"other","Product Designation":"Connection module","Suitability For Use":"Digital output module","at DC / rated value":"24 V","Overvoltage Category":"2","Current / Rated Value":"1 A","Operating Temperature":"0 ... 60 °C","Wire Length / Maximum":"30 m; between front connector module and Connection module","Number Of Relay Outputs":"8","Depth / Of The Enclosure":"60 mm","Width / Of The Enclosure":"100 mm","Height / Of The Enclosure":"76 mm","Number Of Terminal Levels":"1","Type Of Switching Contact":"Single contact, NO contact","Position / Of The Terminal":"Top","Required / End Cover Plate":"No","Width Of Screwdriver Blade":"3.5 mm","Type Of Connecting Terminal":"Push-In","Installation Or Assembly Note":"any","Operating Frequency / Maximum":"0.1 1/s","Number Of Cables / Per Connection":"2; Connection for internal system: Combination of 1 or 2 Wires until the sum total of cross sections be achieved in a ferrule.","Product Function / Infeed Function":"Yes","Product Feature / Cross-Connectable":"No","Product Component / Protective Wiring":"No","Number Of Poles / At The 1st Interface":"16; the IDC connector for the connection cable","combustibility class according to UL 94":"V1","Height / With Lowest-Profile Installation":"60 mm","design of LED initiator/actuator terminal":"Push-In","reference code / according to IEC 81346-2":"XG","Finely Stranded / With Core End Processing":"0.2 ... 2.5 mm²","Finely Stranded / Without Core End Processing":"0.2 ... 2.5 mm²","Number Of Terminal Points / Per Terminal Level":"1","design tested acc. to type of protection / EEx e":"No","Electrical Endurance (Operating Cycles) / Typical":"50 000; for AC 230 V/4 A/Cos phi = 1","For Flexible Conductor / With Core End Processing":"0.2 ... 2.5 mm²; End sleeve according to DIN 46228/1 or DIN 46228/4 with plastic collar","Mechanical Service Life (Operating Cycles) / Typical":"3 000 000","Type Of Connectable Conductor Cross-Sections / Solid":"No","Type Of Electrical Connection / For Connecting Cable":"Plug-in connection","Design Of Terminal / Terminal Levels Internally Linked":"No","Type Of Electrical Connection / For Actuators And Sensors":"Push-In","Number Of The Plug Contacts / Of The Electrical Connection":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$64.77 – $161.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6d57f154fff616166253fab8c566f5cb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=409365&mlfb=6ES7924-0BD20-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7924-0BD20-0BC0/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum cable length between the front connector and this module?","answer":"30 m maximum, as specified between the front connector module and the connection module."},{"question":"What wire sizes does the push-in terminal accept?","answer":"Stranded wire from 0.2 to 2.5 mm², and up to two wires per connection when the total cross-section fits within a ferrule."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7924-0BD20-0BC0","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/6ES7924-0BD20-0BC0 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}}