{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-5EF36-0JA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-5EF36-0JA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-5EF36-0JA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-5EF36-0JA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-5EF36-0JA0, molded case circuit breaker, 3-pole, 25 A at 40 °C, TM240 thermal-magnetic release, shunt trip (STL), 187 kA interrupting at 240 V AC.","salesMarkdown":"## Interrupting and continuous ratings This MCCB carries a 25 A continuous rating from 40 °C through 50 °C, then derates to 24 A at 55–60 °C and 23 A at 65–70 °C. The interrupting capacity is 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V. The 187 kA figure at 240 V is what you use for SCCR coordination on a 240 V delta or 277/480 V wye secondary side; the 121 kA at 415 V covers most 400 V-class industrial feeds. ## Release and auxiliary options The TM240 release is a thermal-magnetic type — thermal element for overload protection, magnetic for short-circuit. The shunt trip (STL) allows a remote signal (e.g., from an emergency-stop relay or a PLC output) to open the breaker. No undervoltage release is fitted on this variant. The supplied basic switch is order code 3VA11255EF360AA0, which is the base MCCB without the shunt trip — so the -0JA0 suffix adds the STL as a factory-installed accessory.","metaTitle":"Siemens 3VA1125-5EF36-0JA0 SENTRON MCCB, 25A, 187kA at 240V","metaDescription":"Siemens 3VA1125-5EF36-0JA0 SENTRON molded case circuit breaker, 25A rated, 187kA interrupting at 240V. TM240 release, shunt trip. Active production. Quoted to order.","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","Maximum":"0 A","Minimum":"0 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"17 kA","at 690 V":"17 kA","at 40 °C":"25 A","at 45 °C":"25 A","at 50 °C":"25 A","at 55 °C":"24 A","at 60 °C":"24 A","at 65 °C":"23 A","at 70 °C":"23 A","Depth [In]":"2.76 in","Width [In]":"3 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"3","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"8.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA11255EF360AA0","Design Of The Auxiliary Release":"shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","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","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL32","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"500 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"box terminal on both sides","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"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=464881&mlfb=3VA1125-5EF36-0JA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-5EF36-0JA0/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of 3VA1125-5EF36-0JA0 at 240 V?","answer":"187 kA at 240 V AC, which is the highest interrupting capacity this breaker delivers. At 415 V it is 121 kA, at 440 V it is 75.6 kA, and at 500 V and 690 V it is 17 kA."},{"question":"What does the TM240 release mean on this MCCB?","answer":"TM240 is a thermal-magnetic overcurrent release rated for 25 A at 40 °C. The thermal element handles overloads, the magnetic element handles short-circuits. The 240 refers to the frame size or release family, not the voltage."},{"question":"Where can I buy 3VA1125-5EF36-0JA0?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."},{"question":"Does 3VA1125-5EF36-0JA0 include a shunt trip?","answer":"Yes, the -0JA0 suffix indicates a factory-installed shunt trip (STL) for remote tripping. No undervoltage release is fitted on this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-5EF36-0JA0","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/3VA1125-5EF36-0JA0 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}}