{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-4EF42-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-4EF42-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-4EF42-0AA0, molded case circuit breaker, 4-pole, 200 A continuous, TM240 thermal-magnetic trip, line protection design.","salesMarkdown":"The TM240 trip unit gives you fixed thermal and magnetic settings; no adjustment dials, no electronic tweaks. What you set at the factory is what you get in the field. The interrupting ratings tell the real story. At 240 V it clears 121 kA; at 415 V it's 75.6 kA; at 440 V it drops to 52.5 kA; at 500 V it's 17 kA; at 690 V it's 11.9 kA. That's a lot of fault-current headroom for a 200 A frame — it means this breaker can sit upstream of a high-capacity transformer or a large bus without worrying about cascading failure. The continuous current holds at 200 A up to 50 °C, then derates to 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. If your panel runs hot, you lose about 12 % of capacity at the top end. The 3VA1220-4EF42-0AA0 measures 70 mm deep, 140 mm wide, and 158 mm tall. If you're swapping out an older 3VA or a 3WL, check the depth: 70 mm is shallower than many legacy frames, so the gland plate and wiring gutters should have clearance. The width at 140 mm means it occupies 5.5 inches of DIN-rail or panel-mount space per pole. ## What the TM240 trip unit means for your application The TM240 designation means the thermal element is calibrated for a 200 A continuous rating and the magnetic (short-circuit) pickup is fixed at 10× In, so 2 000 A minimum and 1 000 A maximum for the magnetic trip band. It's a plain-vanilla line-protection breaker. If you need adjustable long-time or short-time pickup, you'd step up to an electronic trip unit like the ETU series. The 690 V interrupting rating of 11.9 kA is the limiting factor at that voltage — if your fault current exceeds that, you need a higher-rated frame or a current-limiting upstream device.","metaTitle":"Siemens SENTRON 3VA1220-4EF42-0AA0 MCCB, 200 A, 4-Pole, TM24","metaDescription":"Siemens SENTRON 3VA1220-4EF42-0AA0 molded case circuit breaker, 200 A continuous, 4-pole, TM240 trip unit. SCCR 121 kA at 240 V. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"140 mm","Height":"158 mm","Maximum":"2 000 A","Minimum":"1 000 A","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 500 V":"17 kA","at 690 V":"11.9 kA","at 40 °C":"200 A","at 45 °C":"200 A","at 50 °C":"200 A","at 55 °C":"194 A","at 60 °C":"188 A","at 65 °C":"182 A","at 70 °C":"176 A","Depth [In]":"2.76 in","Width [In]":"5.51 in","Height [In]":"6.22 in","Trip Indicator":"No","Number Of Poles":"4","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":"42 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Ground-Fault Monitoring Version":"Without","Continuous Current / Rated Value":"200 A","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":"without","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","Continuous Current / Rated Value / Maximum":"250 A","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":"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":"$351.79","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=99456&mlfb=3VA1220-4EF42-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-4EF42-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1220-4EF42-0AA0 and how do I 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 and we'll come back with a firm number and lead time."},{"question":"What is 3VA1220-4EF42-0AA0's listed depth?","answer":"The depth is 70 mm (2.76 in). That's the body depth; add clearance for wiring and arc-chamber venting per the installation manual."},{"question":"What is 3VA1220-4EF42-0AA0's listed width?","answer":"The width is 140 mm (5.51 in) for the 4-pole frame. Each pole occupies about 35 mm."},{"question":"Will 3VA1220-4EF42-0AA0 drop into a panel specified around 3VA1110-5ED32-0AA0 without rewiring?","answer":"The 3VA1220-4EF42-0AA0 shares the same SENTRON 3VA mounting footprint and bus-bar spacing as the 3VA1110 series, so mechanical fit is the same. But the 3VA1220 is a 200 A, 4-pole breaker with a TM240 trip; the 3VA1110-5ED32-0AA0 is a different rating and trip type. Verify the continuous current, pole count, and trip curve match your panel's overcurrent protection coordination before swapping — the physical fit is fine, but the electrical ratings may not be a drop-in replacement."},{"question":"What compliance documentation does Siemens provide for 3VA1220-4EF42-0AA0?","answer":"Siemens SENTRON 3VA series MCCBs carry CE marking for the European market and are designed to meet IEC 60947-2. UL and CSA listings are available for specific variants — check the specific UL file number for this order code. RoHS and REACH declarations are standard from Siemens for current-production parts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-4EF42-0AA0","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/3VA1220-4EF42-0AA0 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}}