{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2916-1XA22-0MA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2916-1XA22-0MA0","canonicalUrl":"https://aoctrl.com/siemens/3RH2916-1XA22-0MA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2916-1XA22-0MA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH2916-1XA22-0MA0, 2 NO + 2 NC contacts, screw terminals, 10 A rated, snap-on for 3RT2/3RH2 contactors.","salesMarkdown":"The 3RH2916-1XA22-0MA0 is a Siemens SIRIUS auxiliary switch block that mounts on the front of 3RT2 contactors and 3RH2 contactor relays, adding four auxiliary contacts (2 NO + 2 NC) with screw-type terminals. It snaps onto the contactor or relay without tools, so it integrates directly into a DIN-rail panel layout — no extra brackets or wiring space needed beyond the contactor footprint. The contacts are rated for a maximum of 10 A, but the real-world switching capacity depends on the voltage and duty. At 24 V the contacts handle 6 A; at 230 V they still carry 6 A; at 400 V the rating drops to 3 A. This means the same block works across control and light power circuits, but you need to check the voltage-specific limit for your load — especially at higher voltages where the current capability falls off. For AC-15 duty (solenoid and contactor coils), the contacts are rated 1 A at 690 V, which covers most industrial control circuits in 400 V or 480 V panels. The insulation is rated 690 V with pollution degree 3, and surge voltage resistance is 6 kV — typical for industrial environments where the switchgear sees transient spikes from motor starts or nearby lightning. ## Reliability and service life Mechanical service life is 1 million operating cycles typical, and contact reliability is specified at 1 faulty switching per 100 million operations at 17 V, 1 mA — that low-energy reliability matters for PLC inputs or dry-contact signals where oxide films on the contacts can cause intermittent opens.","metaTitle":"Siemens 3RH2916-1XA22-0MA0 SIRIUS Auxiliary Switch, 2NO+2NC,","metaDescription":"Siemens SIRIUS auxiliary switch block, 2 NO + 2 NC contacts, rated 10 A. Screw terminals, snap-on for 3RT2/3RH2 contactors. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Note":"with 3RH2","Depth":"43.7 mm","Width":"36 mm","Height":"37.5 mm","Maximum":"10 A","at 24 V":"6 A","at 60 V":"2 A","at 110 V":"1 A","at 125 V":"6 A","at 220 V":"0.3 A","at 230 V":"6 A","at 250 V":"6 A","at 400 V":"3 A","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"snap-on mounting","Lagging Switching":"0","Product Brand Name":"SIRIUS","Suitability For Use":"Contactor relay and power contactor","at 24 V rated value":"10 A","at 60 V rated value":"4.7 A","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 440 V rated value":"0.5 A","at 600 V rated value":"0.26 A","Instantaneous Contact":"2","With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","at AC-15 at 690 V rated value":"1 A","protection class IP on the front":"IP20","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Mechanical Service Life (Operating Cycles) Typical":"1 000 000","Type Of Electrical Connection For Auxiliary And Control Circuit":"screw-type terminals","insulation voltage with degree of pollution 3 at AC rated value":"690 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=467248&mlfb=3RH2916-1XA22-0MA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2916-1XA22-0MA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key contact ratings for this auxiliary switch?","answer":"Maximum 10 A; at 24 V it's 6 A, at 230 V it's 6 A, at 400 V it's 3 A. AC-15 rating at 690 V is 1 A."},{"question":"Does this auxiliary switch snap onto a DIN rail?","answer":"It snaps onto the contactor or contactor relay itself (3RT2 or 3RH2), not directly onto a DIN rail. The contactor then mounts on the DIN rail."},{"question":"What is the mechanical service life?","answer":"1 million operating cycles typical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2916-1XA22-0MA0","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/3RH2916-1XA22-0MA0 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}}