{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF32-0JH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF32-0JH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF32-0JH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF32-0JH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1112-5EF32-0JH0, molded case circuit breaker, 3-pole, 125 A, line protection, TM240 release, 70 mm depth, 76.2 mm width, 130 mm height.","salesMarkdown":"Three-pole configuration, line protection version — meaning it's sized for feeder or main breaker duty in a distribution panel, not motor-circuit protection (no undervoltage release, no phase failure detection). Breaking capacity runs 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — those numbers cover most industrial service-entrance and sub-distribution scenarios, but at 690 V the 17 kA limit means you need to check upstream fault current if your transformer is stiff. The 70 mm depth and 76.2 mm width fit standard Siemens 3VA panel cutouts; the integrated shunt trip (STL) and the auxiliary contact block (2 aux + 1 trip alarm switch HQ) are factory-fitted, so no field-assembly of the trip accessory. ## Ratings & Fit The rated continuous current Iu is 125 A, and the thermal derating curve is explicit: full rating holds through 50 °C (125 A), then steps down to 120 A at 55 °C, 117.5 A at 60 °C, 115 A at 65 °C, and 112.5 A at 70 °C. If your enclosure ambient runs above 50 °C, use the 55 °C row for sizing — not the 40 °C headline. ## Integration & Accessories The factory-fitted shunt trip (STL) allows remote tripping from a PLC or emergency-stop circuit. The auxiliary contact block (2 aux + 1 trip alarm switch HQ) reports breaker status and trip events back to the control system — no separate alarm module needed. The integrated auxiliary trip is order code 3VA9688-0BL32 — if you're replacing that sub-assembly, that's the part number. No communication function, no ground fault monitoring on this variant.","metaTitle":"Siemens 3VA1112-5EF32-0JH0 SENTRON MCCB, 125 A, 3-Pole, Line","metaDescription":"Siemens 3VA1112-5EF32-0JH0 SENTRON molded case circuit breaker, 125 A rated at 40 °C, 3-pole, line protection. Breaking capacity 187 kA at 240 V. Active production. Sourced to orde","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 690 V":"17 kA","at 40 °C":"125 A","at 45 °C":"125 A","at 50 °C":"125 A","at 55 °C":"120 A","at 60 °C":"117.5 A","at 65 °C":"115 A","at 70 °C":"112.5 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"125 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL32","Design of the overcurrent release":"TM240","Design of short-circuit protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"125 A","Adjustable response value current / li max.":"1 250 A","Adjustable response value current / li min.":"625 A","Adjustable response value current / lr min.":"88 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"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=34147&mlfb=3VA1112-5EF32-0JH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF32-0JH0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1112-5EF32-0JH0 and get a price?","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 for a firm price and lead time."},{"question":"What is the breaking capacity of 3VA1112-5EF32-0JH0 at 415 V?","answer":"121 kA at 415 V, which covers most industrial distribution panels. At 690 V the capacity drops to 17 kA, so verify upstream fault current if your transformer is rated above that."},{"question":"Does 3VA1112-5EF32-0JH0 include a shunt trip?","answer":"Yes, it comes with a factory-fitted shunt trip (STL) for remote tripping, plus an auxiliary contact block with 2 aux switches and 1 trip alarm switch HQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF32-0JH0","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/3VA1112-5EF32-0JH0 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}}