{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9988-0AB33","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9988-0AB33","canonicalUrl":"https://aoctrl.com/siemens/3VA9988-0AB33","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9988-0AB33","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON short-circuit signaling switch, 3VA9988-0AB33, changeover contacts, 7 mm width, for 3VA1 160 breakers.","salesMarkdown":"The Siemens 3VA9988-0AB33 is a SENTRON short-circuit signaling switch — an accessory for 3VA circuit breakers that provides a remote indication when the breaker trips on a short circuit. It fits the 3VA1 160 frame. The switch occupies a single 7 mm slot on the DIN rail, so it adds a signaling point without eating up multiple module positions in the panel. The thermal current limit Ith is 0.3 A, which is the continuous carry rating of the contacts. For switching duty, the ratings break down by load type: AC-12 and AC-15 at 12 V or 24 V are 0.3 A; DC-12 at 12 V or 24 V is 0.1 A; DC-13 (solenoid / relay loads) at 12 V or 24 V is 0.07 A. The switch provides a changeover contact (HQ type), so it can be wired to signal both the normal and tripped state to a PLC or indicator lamp. ## Panel integration Mounts on the DIN rail alongside the 3VA breaker it signals. Width is 7 mm (one slot), depth 30 mm, height 56 mm. Wire stripping length is 15 mm (0.6 in) for the screw terminals.","metaTitle":"Siemens 3VA9988-0AB33 SENTRON Short-Circuit Signaling Switch","metaDescription":"Siemens 3VA9988-0AB33 SENTRON short-circuit signaling switch for 3VA breakers. 7 mm wide, 30 mm deep. 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":"Short-circuit signaling switch","Width / Note":"1 slot (7 mm)","Product version":"Accessories for 3VA circuit breakers","lifecycle_stage":"current","Product brand name":"SENTRON","at AC-12 / at 12 V":"0.3 A","at AC-12 / at 24 V":"0.3 A","at AC-15 / at 12 V":"0.3 A","at AC-15 / at 24 V":"0.3 A","at DC-12 / at 12 V":"0.1 A","at DC-12 / at 24 V":"0.1 A","at DC-13 / at 12 V":"0.07 A","at DC-13 / at 24 V":"0.07 A","Degree of pollution":"3","Product designation":"Short-circuit signaling switch","Overvoltage category":"III","Wire stripping length":"15 mm","Thermal current limit Ith":"0.3 A","Wire stripping length [in]":"0.6 in","Rated insulation voltage Ui":"690 V","Rated impulse withstand voltage":"4 kV","Rated operational voltage Ue with DC":"24 V","Rated operational voltage Ue at AC 50 Hz":"24 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f2fada76b02f27efbdd8ff6e46a18c4a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=352277&mlfb=3VA9988-0AB33","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA9988-0AB33/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA9988-0AB33 used for?","answer":"It is a short-circuit signaling switch accessory for Siemens 3VA circuit breakers — it provides a changeover contact that indicates when the breaker has tripped on a short circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9988-0AB33","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/3VA9988-0AB33 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}}