{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-5GF42-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-5GF42-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-5GF42-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5GF42-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA series, molded case circuit breaker, 3VA1225-5GF42-0HC0, 250 A, 4-pole, TM240 thermal-magnetic release, 187 kA at 240 V, shunt trip.","salesMarkdown":"## What this 250 A MCCB delivers Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V — that's serious fault-interruption headroom for a 250 A frame, meaning it can ride through high-fault scenarios without cascading upstream gear. ## Thermal derating and real-world loading At 55 °C it drops to 243.3 A, at 60 °C to 236.5 A, at 65 °C to 229 A, and at 70 °C to 223 A. That's a 2.7 % reduction — not a showstopper, but worth noting in the load schedule. ## Built-in auxiliaries and release options Dimensions are 70 mm deep, 140 mm wide, 158 mm tall — a standard 4-pole MCCB footprint that bolts into a SENTRON 3VA mounting base or panel-mount kit. Front protection is IP40, so it's fine in a closed enclosure but not washdown-rated. If you need those extras, you're looking at a different 3VA variant.","metaTitle":"Siemens 3VA1225-5GF42-0HC0 SENTRON MCCB, 250 A, 4-Pole, 187","metaDescription":"Siemens 3VA1225-5GF42-0HC0 SENTRON molded case circuit breaker, 250 A rated continuous current, 4-pole, 187 kA at 240 V. TM240 thermal-magnetic release, shunt trip. 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":"140 mm","Height":"158 mm","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"36 kA","at 690 V":"17 kA","at 40 °C":"250 A","at 45 °C":"250 A","at 50 °C":"250 A","at 55 °C":"243.3 A","at 60 °C":"236.5 A","at 65 °C":"229 A","at 70 °C":"223 A","Trip indicator":"No","Number of poles":"4","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 HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"250 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":"3VA9688-0BL30","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","Design of the N-conductor protection":"100%","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":"600 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"250 A","Adjustable response value current / li max.":"2 500 A","Adjustable response value current / li min.":"1 250 A","Adjustable response value current / lr min.":"175 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"2","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AA12","Switching capacity class of the circuit breaker":"M","Max. rated operational current of the frame size":"250 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.":"25 x 8","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"13 x 1"}},"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=568796&mlfb=3VA1225-5GF42-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5GF42-0HC0/alternatives.json"},"ai":{"faq":[{"question":"What does the TM240 release designation mean?","answer":"TM240 is a thermal-magnetic release rated for 250 A continuous current — the '240' refers to the release family, not the amp rating. It provides inverse-time overload protection (thermal element) and instantaneous short-circuit protection (magnetic element)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-5GF42-0HC0","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/3VA1225-5GF42-0HC0 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}}