{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1125-4ED22-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1125-4ED22-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1125-4ED22-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1125-4ED22-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1125-4ED22-0AA0, molded case circuit breaker, 2-pole, 25 A rated at 40 °C, 121 kA at 240 V, TM210 thermal-magnetic trip unit, line protection design.","salesMarkdown":"The Siemens SENTRON 3VA1125-4ED22-0AA0 is a 2-pole molded case circuit breaker (MCCB) rated 25 A at 40 °C, with a TM210 thermal-magnetic trip unit and a maximum interrupting capacity of 121 kA at 240 V AC, 75.6 kA at 415 V AC. It's designed for line protection in distribution panels, sized for a 50.8 mm wide by 130 mm tall by 70 mm deep footprint — a standard 2-pole MCCB slot on most DIN-rail or panel-mount assemblies. The 25 A rating holds steady across 40 °C to 50 °C ambient, then derates to 24 A at 55–60 °C and 23 A at 65–70 °C. That means in a warm panel — say 55 °C internal — you still get 24 A continuous, not a forced down-rate. The 121 kA at 240 V AC is the short-circuit breaking capacity; at 415 V AC it's still 75.6 kA, which covers most industrial service-entrance or feeder applications without needing an upstream current-limiting fuse. Maximum power loss is 5.66 W, so heat buildup in a densely packed enclosure is manageable. The TM210 trip unit is thermal-magnetic — no electronic adjustments, no communication function, no undervoltage release. That makes it a straight swap for older fixed-trip MCCBs in line-protection duty.","metaTitle":"Siemens 3VA1125-4ED22-0AA0 SENTRON MCCB, 25 A, 2-Pole, 121 k","metaDescription":"Siemens SENTRON 3VA1125-4ED22-0AA0 molded case circuit breaker. 25 A rated, 2-pole, 121 kA at 240 V. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"50.8 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"121 kA","at 415 V":"75.6 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]":"2 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"2","Voltage Trigger":"No","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":"5.66 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"500 V","Design Of The Overcurrent Release":"TM210","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","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"415 V","operating voltage / at DC / rated value":"250 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"S","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=433701&mlfb=3VA1125-4ED22-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1125-4ED22-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA1125-4ED22-0AA0's listed depth?","answer":"70 mm (2.76 in). That's the body depth excluding any handle or terminal protrusions — fits standard panel depths."},{"question":"What is 3VA1125-4ED22-0AA0's listed width?","answer":"50.8 mm (2 in). That's a standard 2-pole MCCB width, so it drops into existing panel cutouts for that class."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1125-4ED22-0AA0","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/3VA1125-4ED22-0AA0 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}}