{"product_id":"3va5212-5ec31-0aa0","title":"3VA5212-5EC31-0AA0 - MFAS 125 Amp Circuit Breaker","description":"\u003cp\u003e\u003cstrong\u003e3VA5212-5EC31-0AA0 - MFAS 125 Amp Circuit Breaker\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Siemens 3VA5212-5EC31-0AA0 is one of those breakers that does what it’s supposed to do—no extra fluff, no complicated setup. It’s a 125-amp, 3-pole unit from the 3VA5 line, built for everyday commercial and light industrial use where reliability matters more than bells and whistles. It uses a thermal-magnetic trip, so you’re covered on both overloads and short circuits. The settings are fixed—125A for overload, and instantaneous Trip at 10x the rated current—so there’s nothing to tweak or second-guess during install. That’s usually a plus if you want to get the job done and move on. With a 35kA rating at 480V, it’s a solid choice for systems where available fault current isn’t low. It’s not oversized, but it’s got enough capacity to handle tougher conditions without being pushed to the limit. Physically, it's a 250 frame, so it’s compact enough for most panels without feeling cramped. If you’ve worked with Siemens 3VA breakers before, this will feel familiar right out of the box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e125 Amp Rating –\u003c\/strong\u003e Works well for a wide range of standard applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Pole Breaker –\u003c\/strong\u003e Full three-phase protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e35kA @ 480V –\u003c\/strong\u003e Suitable for higher fault current environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal-Magnetic Trip –\u003c\/strong\u003e Simple, proven protection style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixed Settings –\u003c\/strong\u003e No adjustments, less room for setup mistakes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstantaneous Trip at 10x –\u003c\/strong\u003e Fast reaction during faults\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3VA52 Frame (250 Frame) –\u003c\/strong\u003e Good balance of size and capability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3VA5212-5EC31-0AA0\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 3VA52 \/ 3VA5\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 125A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e Up to 480V\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 35kA @ 480V\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Type:\u003c\/strong\u003e Thermal Magnetic (TM230)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverload Protection:\u003c\/strong\u003e 125A (fixed)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstantaneous Trip:\u003c\/strong\u003e 10 × In\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Size:\u003c\/strong\u003e 250\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 9.65\" H × 6.3\" W × 5.9\" D\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standards:\u003c\/strong\u003e This breaker is part of Siemens’ UL-listed 3VA5 series, meeting North American safety and performance standards. It’s built for consistent, long-term operation—nothing experimental, just established protection hardware widely used in the field.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommercial panels and building systems\u003c\/li\u003e\n\u003cli\u003eLight industrial equipment\u003c\/li\u003e\n\u003cli\u003eManufacturing setups with moderate fault levels\u003c\/li\u003e\n\u003cli\u003eReplacement jobs where a Siemens 3VA breaker is already in place\u003c\/li\u003e\n\u003cli\u003eGeneral three-phase distribution\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer.\u003cstrong\u003e CIRCUIT BREAKER SUPERSTORE®\u003c\/strong\u003e is an independent reseller and is \u003cstrong\u003enot \u003c\/strong\u003ean authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do \u003cstrong\u003enot\u003c\/strong\u003e apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eSiemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Siemens AG or its affiliates.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SIEMENS","offers":[{"title":"New","offer_id":51696280633643,"sku":"3VA5212-5EC31-0AA0","price":1000.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/3va5212-5ec31-0aa0","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}