{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-5GF42-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-5GF42-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-5GF42-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5GF42-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-5GF42-0CH0, molded case circuit breaker, 250 A, 4-pole, 187 kA interrupting at 240 V, line protection design, with undervoltage release.","salesMarkdown":"## What this MCCB carries — and what it means for your panel The Siemens 3VA1225-5GF42-0CH0 is a SENTRON molded case circuit breaker rated at a solid 250 A continuous, non-derated from 40 °C through 50 °C — at 55 °C it still holds 243 A, and at 70 °C it's still good for 223 A. That means in a warm enclosure you're not losing headroom until the ambient climbs past 50 °C. Interrupting capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V. That 187 kA figure at 240 V tells you this breaker is built for high-fault service-entrance or large-distribution positions where the available fault current is serious — not a branch-circuit afterthought. Four poles, line-protection design, and it ships with an undervoltage release (UVR) integrated — so it drops the load on loss of control voltage without an external relay. The auxiliary switch complement is 2 aux switches plus 1 trip alarm switch HQ, which gives you both status and alarm feedback to a PLC or annunciator. ## Footprint and panel fit Dimensions are 140 mm wide × 158 mm tall × 70 mm deep — a standard SENTRON 3VA frame size. It mounts on a DIN rail or direct panel plate; the 70 mm depth keeps it clear of shallow enclosure back-panels. No communication function onboard, so no comms wiring to route — just power and the UVR coil circuit. ## What the ratings mean for the buyer's decision The 250 A rating is the maximum continuous current the breaker carries without tripping under normal load. The interrupting capacities at each voltage level tell you the worst-case fault this breaker can safely clear. Insulation voltage rated at 800 V — so it's suitable for 690 V systems with margin. The UVR is factory-fitted, not a field-add kit, which saves installation time and avoids wiring errors on the control circuit.","metaTitle":"Siemens 3VA1225-5GF42-0CH0 SENTRON MCCB, 250 A, 4-Pole","metaDescription":"Siemens 3VA1225-5GF42-0CH0 SENTRON molded case circuit breaker, 250 A rated, 4-pole, 187 kA at 240 V interrupting capacity. Current lifecycle stage. Sourced to order against RFQ.","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","Maximum":"250 A","Minimum":"250 A","at 240 V":"187 kA","at 415 V":"121 kA","at 440 V":"75.6 kA","at 500 V":"30 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 A","at 60 °C":"237 A","at 65 °C":"230 A","at 70 °C":"223 A","Depth [In]":"2.76 in","Width [In]":"5.51 in","Height [In]":"6.22 in","Trip Indicator":"Yes","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"59.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA12255GF420AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","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","design of the N-conductor protection":"100%","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB24","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 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":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"M","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","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=568791&mlfb=3VA1225-5GF42-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-5GF42-0CH0/alternatives.json"},"ai":{"faq":[{"question":"Does 3VA1225-5GF42-0CH0 include an undervoltage release?","answer":"Yes, it ships with an undervoltage release (UVR) factory-installed, plus 2 auxiliary switches and 1 trip alarm switch HQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-5GF42-0CH0","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/3VA1225-5GF42-0CH0 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}}