{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF5874-4A.","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF5874-4A.","canonicalUrl":"https://aoctrl.com/siemens/3SF5874-4A.","factsUrl":"https://aoctrl.com/api/mcp/products/3SF5874-4A.","rawCanonicalId":null},"summary":{"shortDescription":"Siemens AS-Interface front panel module, 3SF5874-4A., 22 mm round/square, 4 control points, insulation displacement system, current lifecycle stage.","salesMarkdown":"The Siemens 3SF5874-4A. is an AS-Interface front panel module designed to bring command devices — pushbuttons, selector switches, pilot lights — onto an AS-i bus without running individual control wires back to the cabinet. It accepts 22 mm round or square operator units and provides four control points, wired via an insulation displacement connection (IDC) system that punches down the flat AS-i cable directly, no stripping or screw terminals. The 22 mm mounting diameter matches the standard panel cutout for industrial pushbuttons, selector switches, and pilot lights across brands — any 22 mm operator from Siemens or a third party fits this module. The round installation opening accepts both round and square bezels, so you're not locked into one trim style. The module does not carry an emergency-stop function and does not provide positive opening of the NC contacts — that means it is not rated for safety circuits where a mechanically forced break is required. For guarding or e-stop applications, you would need a separate safety-rated AS-i module or a hardwired safety relay. ## Deployment context This module mounts in a panel or enclosure door via the 22 mm cutout and fastens vertically or horizontally. The insulation displacement system means you run the AS-i flat cable through the module and press it closed — no stripping, no terminal blocks, no daisy-chain wiring. That saves panel-build time and reduces connection points that can vibrate loose on a conveyor line or pump skid. The module has no integral light source and no optional light-source extension, so any pilot-light function must come from the operator unit itself, not from this base module.","metaTitle":"Siemens 3SF5874-4A. AS-Interface Front Panel Module, 22 mm,","metaDescription":"Siemens 3SF5874-4A. AS-Interface front panel module for 22 mm command devices, 4 control points, insulation displacement system. Current lifecycle stage. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Safety Interlock Switches"],"specifications":{"lifecycle_stage":"current","Positive Opening":"No","Mounting Diameter":"22 mm","EMERGENCY STOP function":"No","Product Component Front Ring":"No","Substance Prohibitance (Date)":"07/01/2006","Product Component Light Source":"No","Fastening Method Of The Enclosure":"Vertical / horizontal","Shape Of The Installation Opening":"round","Product Extension Optional Light Source":"No","Delivery State Pre-Wired On Strip Terminal":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3SF5874-4A./alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3SF5874-4A. and get a price?","answer":"3SF5874-4A. is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Does 3SF5874-4A. have positive opening for safety circuits?","answer":"No, the 3SF5874-4A. does not provide positive opening and does not carry an emergency-stop function. It is not rated for safety circuits requiring mechanically forced break contacts."},{"question":"What is the mounting diameter for 3SF5874-4A.?","answer":"The mounting diameter is 22 mm, the standard panel cutout for industrial command devices. The installation opening is round, and the module accepts both round and square operator bezels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF5874-4A.","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/3SF5874-4A. 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}}