{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9988-0AA22","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9988-0AA22","canonicalUrl":"https://aoctrl.com/siemens/3VA9988-0AA22","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9988-0AA22","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON leading auxiliary switch, 3VA9988-0AA22, 6 A thermal, AC-15 3 A, DC-13 1 A, 7 mm width, 30 mm depth, 56 mm height.","salesMarkdown":"## What this switch does in a 3VA panel The Siemens SENTRON 3VA9988-0AA22 is a leading auxiliary switch — a changeover contact block that mounts ahead of the main contacts on 3VA1 and 3VA20 through 3VA25 molded-case circuit breakers. It signals the breaker position (ON/OFF/TRIPPED) back to the control system before the main contacts close, which matters for interlocking sequences and status feedback in a motor control center. Rated thermal current (Ith) is 6 A, and the switching capacity varies by duty: AC-12 resistive loads handle the full 6 A at 12–240 V; AC-15 inductive (solenoid/contactor coils) is rated 3 A across the same voltage range. On DC circuits the ratings drop predictably — DC-13 at 24 V is 0.8 A, at 48 V it's 0.4 A. That DC-13 curve is what you check when this switch feeds a PLC input or a DC relay coil in a 24 VDC control loop. That's standard for a breaker accessory that lives inside a switchgear enclosure, not a clean-room or office-grade component. The block is 7 mm wide — one modular width on a DIN rail — and 30 mm deep by 56 mm tall. It snaps onto the breaker's left side (leading position) and uses a screw-clamp terminal that accepts 0.2–2.5 mm² conductors with a 15 mm strip length. The 20 ms operating time (make/break) is fast enough for most control sequences but not a high-speed safety relay replacement.","metaTitle":"Siemens 3VA9988-0AA22 Leading Auxiliary Switch, 6 A Thermal","metaDescription":"Siemens SENTRON 3VA9988-0AA22 leading auxiliary switch for 3VA breakers. 6 A thermal, AC-15 3 A, DC-13 1 A. 7 mm wide. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"30 mm","Width":"7 mm","Height":"56 mm","Maximum":"16","Minimum":"20","Accessories":"Leading auxiliary switch","Stripped Length":"15 mm","Thermal Current":"6 A","lifecycle_stage":"current","Product Brand Name":"SENTRON","at AC-12 / at 12 V":"6 A","at AC-12 / at 24 V":"6 A","at AC-12 / at 48 V":"6 A","at AC-15 / at 12 V":"3 A","at AC-15 / at 24 V":"3 A","at AC-15 / at 48 V":"3 A","at DC-12 / at 12 V":"6 A","at DC-12 / at 24 V":"4 A","at DC-12 / at 48 V":"2 A","at DC-13 / at 12 V":"1 A","at DC-13 / at 24 V":"0.8 A","at DC-13 / at 48 V":"0.4 A","Degree Of Pollution":"3","Product Designation":"Leading auxiliary switch","at AC-12 / at 125 V":"6 A","at AC-15 / at 125 V":"3 A","at DC-12 / at 110 V":"0.5 A","at DC-12 / at 250 V":"0.25 A","at DC-13 / at 110 V":"0.2 A","at DC-13 / at 250 V":"0.1 A","Overvoltage Category":"III","Stripped Length [In]":"0.6 in","Design Of The Product":"Accessories for 3VA circuit breakers","at AC-12 / at 220/240 V":"6 A","at AC-15 / at 220/240 V":"3 A","Surge Voltage Resistance":"4 kV","Lead Time / Relating To Main Contacts":"20 ms","operating voltage / at DC / rated value / minimum":"250 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8df21b275f5ac35b7f144d67fdb9da29.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=465980&mlfb=3VA9988-0AA22","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA9988-0AA22/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3VA9988-0AA22?","answer":"Thermal current Ith 6 A. AC-15 inductive rating 3 A at 12–240 V. DC-13 at 24 V is 0.8 A. Pollution degree 3, overvoltage category III, surge voltage resistance 4 kV. Dimensions: 7 mm wide, 30 mm deep, 56 mm tall."},{"question":"Where can I buy 3VA9988-0AA22 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ and we'll respond with a commercial offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9988-0AA22","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/3VA9988-0AA22 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}}