{"product_id":"3va5212-5ef31-0aa0","title":"3VA5212-5EF31-0AA0 - MFAS 125 Amp Circuit Breaker","description":"\u003cp\u003e\u003cstrong\u003e3VA5212-5EF31-0AA0 - MFAS 125 Amp Circuit Breaker\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf you’re working with a three-phase system and need something you can install and not worry about later, the Siemens 3VA5212-5EF31-0AA0 is a solid pick. It’s a 125 amp, 3-pole circuit breaker from the 3VA5 series—built for everyday use in commercial and industrial setups where reliability matters more than bells and whistles. This one keeps things simple. It uses a thermal magnetic trip unit, so you’re covered on both overloads and short circuits without adding complexity. The overload protection is fixed at 125 amps, which means no field adjustments and no guesswork. For short circuits, it trips instantly at 10 times the rated current, helping shut things down fast before damage spreads. With a 35kA interrupting rating at 480V, it’s ready for higher fault conditions you’d expect in real-world systems. And since it’s built on the 3VA52 frame, it fits neatly into most panel layouts without forcing you to rearrange everything just to make it work. In short—it does what you need it to do, and it does it consistently.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e125 amp rating for common commercial and industrial applications\u003c\/li\u003e\n\u003cli\u003e35kA interrupting capacity at 480V for higher fault levels\u003c\/li\u003e\n\u003cli\u003eThermal magnetic trip unit for both overload and short-circuit protection\u003c\/li\u003e\n\u003cli\u003eFixed overload setting (125A) keeps performance consistent\u003c\/li\u003e\n\u003cli\u003eInstantaneous trip at 10x rated current for quick fault response\u003c\/li\u003e\n\u003cli\u003e3-pole design for standard three-phase systems\u003c\/li\u003e\n\u003cli\u003e3VA52 frame fits well in most panel configurations\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\u003ePart Number:\u003c\/strong\u003e 3VA5212-5EF31-0AA0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Siemens 3VA5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e 3VA52 (UL Frame 250)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 125A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 35kA @ 480V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Unit:\u003c\/strong\u003e TM240 Thermal Magnetic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverload Protection (Ir):\u003c\/strong\u003e 125A (fixed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort-Circuit Protection (Ii):\u003c\/strong\u003e 10 × In (fixed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 9.65\" H × 6.3\" W × 5.9\" D\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\u003eUL Listed for use in the U.S.\u003c\/li\u003e\n\u003cli\u003eSupports NEC-compliant installations when applied correctly\u003c\/li\u003e\n\u003cli\u003eBuilt to meet standard commercial and industrial requirements\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\u003eYou’ll typically find this breaker in commercial buildings, industrial facilities, OEM equipment, and control panels. It’s a practical fit for HVAC systems, manufacturing lines, and general power distribution—anywhere you need dependable protection without overcomplicating the setup.\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":51696282829099,"sku":"3VA5212-5EF31-0AA0","price":1000.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/3va5212-5ef31-0aa0","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}