{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SE2912-2AB20","brand":"Siemens","brandSlug":"siemens","productSlug":"3SE2912-2AB20","canonicalUrl":"https://aoctrl.com/siemens/3SE2912-2AB20","factsUrl":"https://aoctrl.com/api/mcp/products/3SE2912-2AB20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3SE2912-2AB20 foot switch, 1-pedal with latching, metal IP65 enclosure, 1 NO + 1 NC contacts, cable entry M20 x 1.5, rated 16 A at 400 V.","salesMarkdown":"## What the ratings mean for your control circuit The 3SE2912-2AB20 is a SIRIUS foot switch with a single pedal and latching action — once depressed, the contacts hold their switched state until the pedal is pressed again to release. This is distinct from momentary foot switches where the contacts revert when pressure is removed. Contact configuration is 1 normally-open and 1 normally-closed auxiliary contact, giving you both a make and break circuit from the same pedal stroke. The NC contact provides a positive-break path for safety-related stop signals when wired in series with the control voltage. Current ratings are specified per voltage: 16 A at 230 V AC, 16 A at 400 V AC, 3 A at 24 V DC, and 0.25 A at 250 V DC. The 400 V rating at 16 A matches the full load current of a small contactor coil or pilot duty circuit; the DC ratings drop significantly due to arc extinction limits at higher voltages. Minimum actuating force is 30 N in the direction of actuation — this is a deliberate resistance to prevent accidental triggering from a light brush or vibration. The pedal requires a firm, intentional press. ## Enclosure, ingress protection, and mounting The enclosure is metal, painted black with a grey top part, rated IP65 per the protection class. IP65 means dust-tight and protected against low-pressure water jets from any direction — suitable for washdown areas in food processing, machine shops, or outdoor stations where the switch is not submerged. Dimensions are 220 mm depth, 70 mm width, 70 mm height — a compact footprint that fits on a machine base plate or pedestal. Cable entry is via a single M20 x 1.5 threaded port; you will need a matching cable gland rated for the cable diameter and IP65 seal. Ambient operating temperature range is -25 to +80 °C, covering both cold storage environments and warm machine-side locations without derating the switch mechanism. ## Lifecycle and sourcing reality Substance prohibitance date is listed as 07/01/2006, aligning with the original EU RoHS directive effective July 2006. The switch complies with RoHS substance restrictions as of that date. Sourced to order against your BOM quantity through independent industrial distribution.","metaTitle":"Siemens 3SE2912-2AB20 Foot Switch, 1NO+1NC, IP65","metaDescription":"Siemens 3SE2912-2AB20 SIRIUS foot switch, 1-pedal with latching, metal IP65 enclosure, 1NO+1NC contacts, rated 16 A at 400 V.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Limit Switches"],"specifications":{"Depth":"220 mm","Width":"70 mm","title":"3SE2912-2AB20","Height":"70 mm","Latching":"Yes","Interlock":"No","description":"Foot switch, 1-pedal without cover, with latching Metal enclosure IP65, 1 NO+1 NC, Cable entry M20 x 1.5","lifecycle_stage":"current","Cable Entry Type":"M20 x 1.5","Of The Enclosure":"black","Product Brand Name":"SIRIUS","Product Designation":"foot switch","at 24 V rated value":"3 A","protection class IP":"IP65","at 230 V rated value":"16 A","at 250 V rated value":"0.25 A","at 400 V rated value":"16 A","Material Of The Enclosure":"metal","Number Of Switching Steps":"1","Of The Enclosure Top Part":"grey","Substance Prohibitance (Date)":"07/01/2006","Number Of The Actuation Pedals":"1","Suitability For Use Safety Switch":"No","Ambient Temperature During Operation":"-25 ... +80 °C","reference code according to IEC 81346-2":"S","with low demand rate according to SN 31920":"50 %","with high demand rate according to SN 31920":"50 %","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Minimum Actuating Force In Directions Of Actuation":"30 N"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$99.06","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e4bcd7b8a5564bfe3bd38180bee0fdb5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=285776&mlfb=3SE2912-2AB20"},"ai":{"faq":[{"question":"What is the contact configuration and what voltages can it switch?","answer":"The switch provides 1 normally-open and 1 normally-closed contact. It is rated 16 A at 230 V AC, 16 A at 400 V AC, 3 A at 24 V DC, and 0.25 A at 250 V DC. Use the AC ratings for pilot duty and small motor control circuits; the DC rating at 250 V is limited to low-current signal switching."},{"question":"Does the pedal latch or is it momentary?","answer":"The switch has a latching action — the contacts stay in the actuated position after the pedal is pressed and released. A second press releases the latch and returns the contacts to their resting state."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SE2912-2AB20","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/3SE2912-2AB20 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}}