{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7921-4BF00-0AB1","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7921-4BF00-0AB1","canonicalUrl":"https://aoctrl.com/siemens/6ES7921-4BF00-0AB1","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7921-4BF00-0AB1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-400, pre-assembled front connector, 6ES7921-4BF00-0AB1, 5 m cable, 48 poles, 60 V rated, 24 V DC, 1 A.","salesMarkdown":"The Siemens 6ES7921-4BF00-0AB1 is a pre-assembled front connector for SIMATIC S7-400 analog I/O modules. It comes with four round cables, each 0.14 mm², terminated at 5 m length, and mates to the 48-pole front connector of the analog module. Rated at 60 V, 1 A per contact, with a total current limit of 2 A across the assembly. The 24 V DC rail is the typical loop supply for the analog channels. Mounts directly to the S7-400 analog module — no end cover plate required. The cable exits at the top of the connector. Braided shield for noise immunity on analog signals. Screw-type terminals on the cable end for field wiring. Operating temperature range 0 to 60 °C; storage from -30 to +70 °C. Pollution degree 2, overvoltage category II. Black enclosure, transparent cover not available. Insulating body material is not standard thermoplastic (listed as 'other'). No EEx e tested design. The cable is directly connected to the first interface — no intermediate connector.","metaTitle":"Siemens 6ES7921-4BF00-0AB1 pre-assembled front connector, 5","metaDescription":"Pre-assembled front connector for SIMATIC S7-400 analog I/O modules. 5 m cable, 48 poles, 60 V rated, 24 V DC, 1 A rated current. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC Accessories"],"specifications":{"title":"6ES7921-4BF00-0AB1","Length":"5 m","Rated Value":"60 V","description":"Front connector S7-400 for analog Pre-assembled with 4 round Cables 0.14 mm2, L = 5.0 m for analog connection modules","Mounting Type":"direct mounting","Target System":"SIMATIC S7-400","During Storage":"-30 ... +70 °C","Number Of Poles":"48; of the front connector","at DC / maximum":"30 V","lifecycle_stage":"mature","During Operation":"0 ... 60 °C","Degree Of Pollution":"2","Product Designation":"Pre-assembled front connector","Suitability For Use":"Analog I/O modules","at DC / rated value":"24 V","Design Of The Shield":"braided shield","Overvoltage Category":"2","Current / Rated Value":"1 A","Operating Temperature":"0 ... 60 °C","Wire Length / Maximum":"5 m; between front connector module and terminal module","Total Current / Maximum":"2 A","Color / Of The Enclosure":"black","Position / Of The Terminal":"at the top","Product Feature / Transparent":"No","Material / Of The Insulating Body":"other","Number Of Poles / At The 1st Interface":"Cable is directly connected","reference code / according to IEC 81346-2":"WG","Product Component / Required / End Cover Plate":"No","design tested acc. to type of protection / EEx e":"No","Type Of Electrical Connection / For Connecting Cable":"Screw-type terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$426.00","stockQuantity":0,"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=161075&mlfb=6ES7921-4BF00-0AB1"},"ai":{"faq":[{"question":"What is the cable length and pole count?","answer":"The cable is 5 m long, pre-assembled with a 48-pole front connector for S7-400 analog modules."},{"question":"What are the key electrical ratings?","answer":"Rated voltage 60 V, rated current 1 A per contact, total maximum current 2 A. The 24 V DC rail is the typical analog supply."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7921-4BF00-0AB1","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/6ES7921-4BF00-0AB1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}