{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SE5122-0CE01","brand":"Siemens","brandSlug":"siemens","productSlug":"3SE5122-0CE01","canonicalUrl":"https://aoctrl.com/siemens/3SE5122-0CE01","factsUrl":"https://aoctrl.com/api/mcp/products/3SE5122-0CE01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3SE5122-0CE01 SIRIUS mechanical position switch, roller lever, positive opening, IP66/IP67, 10 A thermal, 400 V insulation, block wide metal housing.","salesMarkdown":"## SIRIUS mechanical limit switch, still current The 3SE5122-0CE01: The switch carries a positive-opening switching function compliant with EN 50041 on the actuator head, which is the defining safety feature for guard-door and position-monitoring duty where a stuck contact must be ruled out mechanically rather than by spring return alone. ## Snap-action contacts, 10 A thermal, AC and DC derating Inside the wide metal housing is a snap-action contact set with a thermal current rating of 10 A — the headline figure that tells you the limit switch is built for direct switching of contactor coils, small motor loads and solenoid valves rather than pure signal-level duty. Snap-action contacts also give clean switching edges into the PLC input — no chatter on slow cam approach, which is exactly what you want when the signal has to ride over a noisy VFD-fed plant floor. ## IP66/IP67 block-wide housing, metal enclosure, three M20 entries The enclosure is metal in the block-wide design, sealed to IP66/IP67 and finished with a cathodic dip coating — meaning the switch body and the cable entries withstand washdown, hose-down and outdoor exposure without water wicking into the terminals. Operating temperature runs -25 °C to +85 °C and storage -40 °C to +90 °C, so the switch handles unheated enclosures in cold-weather sites and the high-ambient pockets next to a motor without the plastic roller deforming. ## Roller lever actuator and 0.05 mm repeat accuracy The actuator head is a metal-lever roller plunger with a plastic roller, built per the EN 50041 standard actuator pattern — so a wide range of third-party replacement levers and specialty actuators (rod, fork, cat whisker) mount on the same shaft without adapter hardware. Repeat accuracy is 0.05 mm — the position-to-position scatter at the trip point — which is what lets the switch repeat a machine home position consistently enough for registration and indexing duty, not just end-of-travel guarding. Mechanical shock rating to IEC 60068-2-27 is 30 g / 11 ms, so a passing crash event on a conveyor or press doesn't take the contacts out of alignment.","metaTitle":"Siemens 3SE5122-0CE01 SIRIUS limit switch, IP66/67","metaDescription":"Siemens 3SE5122-0CE01 SIRIUS mechanical limit switch, roller lever, positive opening, IP66/67, 10 A thermal. Quoted to order against your BOM.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Limit Switches"],"specifications":{"Solid":"1x (0.5 ... 1.5 mm²), 2x (0.5 ... 0.75 mm²)","title":"3SE5122-0CE01","description":"Position switch Metal enclosure 56 mm wide Device connection 3x (M20x 1.5) 1 NO/1 NC quick action contacts Roller lever, Metal lever and plastic roller 22 mm","During Storage":"-40 ... +90 °C","Repeat Accuracy":"0.05 mm","Thermal Current":"10 A","lifecycle_stage":"current","Active Principle":"mechanical","Cable Entry Type":"3x (M20 x 1.5)","During Operation":"-25 ... +85 °C","Fastening Method":"screw fixing","Circuit Principle":"snap-action contacts","Mounting Position":"any","Product Brand Name":"SIRIUS","Degree Of Pollution":"class 3","Product Designation":"Mechanical position switches","Width Of The Sensor":"56 mm","at 24 V rated value":"3 A","at AWG cables solid":"1x (20 ... 16), 2x (20 ... 18)","protection class IP":"IP66/IP67","Length Of The Sensor":"119 mm","at 125 V rated value":"0.55 A","at 240 V rated value":"6 A","at 250 V rated value":"0.27 A","at 400 V rated value":"0.12 A","Design Of The Housing":"block, wide","at AWG cables stranded":"1x (20 ... 16), 2x (20 ... 18)","Design Of The Interface":"without","Coating Of The Enclosure":"cathodic dip coating","Shape Of The Switch Head":"roller","Material Of The Enclosure":"metal","according to IEC 60068-2-27":"30g / 11 ms","Of The Supplied Basic Switch":"3SE5122-0CA00","Substance Prohibitance (Date)":"07/01/2006","Type Of Electrical Connection":"screw-type terminals","Insulation Voltage Rated Value":"400 V","Design Of The Actuating Element":"Roller lever, metal lever, plastic roller","Design Of The Switching Contact":"mechanical","Operating Frequency Rated Value":"50 ... 60 Hz","Design Of The Switching Function":"positive opening","Standard-Compliant Actuator Head":"EN 50041","Product Function Positive Opening":"Yes","Suitability For Use Safety Switch":"Yes","Of The Supplied Switching Contacts":"3SE5000-0CA00","Surge Voltage Resistance Rated Value":"6 kV","reference code according to IEC 81346-2":"B","Finely Stranded With Core End Processing":"1x (0.5 ... 1.5 mm²), 2x (0.5 ... 0.75 mm²)","Of The Supplied Empty Enclosure With Cover":"3SE5122-0AA00","Design Of The Housing According To Standard":"No","Number Of Switching Contacts Safety-Related":"1","Material Of The Enclosure Of The Switch Head":"plastic","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","continuous current of the DIAZED fuse link gG":"6 A","continuous current of the C characteristic MCB":"1 A; for a short-circuit current smaller than 400 A","vibration resistance according to IEC 60068-2-6":"0.35 mm/5g","continuous current of the quick DIAZED fuse link":"10 A; for a short-circuit current smaller than 400 A","Mechanical Service Life (Operating Cycles) Typical":"15 000 000","Minimum Actuating Force In Directions Of Actuation":"10 N","Of The Supplied Actuator Head For Position Switches":"3SE5000-0AE01","Design Of The Interface For Safety-Related Communication":"without"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$82.16","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1497b1261170e946f0276b51706178e6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=284743&mlfb=3SE5122-0CE01"},"ai":{"faq":[{"question":"Can the 3SE5122-0CE01 be used as a safety-rated guard-door switch?","answer":"Yes — the switching function is positive opening and the actuator head is EN 50041 standard-compliant, which is the combination a safety circuit needs to rule out a stuck closed contact on a guard door or hatch."},{"question":"What is the 3SE5122-0CE01's repeat accuracy on this Limit Switches line?","answer":"0.05 mm — the position-to-position scatter at the trip point, tight enough for registration and indexing duty in addition to plain end-of-travel guarding."},{"question":"What is the IP rating and housing material of the 3SE5122-0CE01?","answer":"IP66/IP67 in a block-wide metal enclosure with cathodic dip coating and three M20 x 1.5 cable entries — built for washdown, hose-down and outdoor panel-side mounting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SE5122-0CE01","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/3SE5122-0CE01 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}}