{"product_id":"siemens-3wa1125-3ab02-0aa0-3wa-2500a-3p-66ka-acb","title":"Siemens 3WA1125-3AB02-0AA0 3WA 3-Pole 2500A 66kA 690V Fixed Type Air Circuit Breaker ETU300 LSI","description":"\u003cp\u003eThe Siemens 3WA1125-3AB02-0AA0 is a fixed-mounted, horizontally connected 3-pole air circuit breaker in the 3WA series, rated at 2500 A with a breaking capacity of 50 kA at 690 V AC. It ships with the ETU300 LSI electronic trip unit and 2NO+2NC auxiliary contacts factory-fitted, making it suited for main distribution switchgear panels where high fault-current interruption at low-voltage network voltages up to 690 V is required.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3WA1125-3AB02-0AA0\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3WA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAir Circuit Breaker (ACB)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current (In)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e690 V AC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBreaking Capacity (Icu)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 kA @ 690 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFixed\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Orientation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHorizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrame Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSize 1\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrip Unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eETU300 LSI (Long-time, Short-time, Instantaneous)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuxiliary Contacts\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2NO + 2NC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e33.229 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCertifications \u0026amp; Standards\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eIEC 60947-2\u003c\/li\u003e\n  \u003cli\u003eIEC 62443-3-3\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cp\u003eAt 2500 A rated current and 50 kA breaking capacity at 690 V, the 3WA1125-3AB02-0AA0 is dimensioned for incomer and bus-coupler positions in low-voltage main distribution boards operating on 690 V industrial networks — common in heavy process industries, offshore platforms, and large marine installations where line voltages exceed the standard 400 V tier.\u003c\/p\u003e\n\u003cp\u003eThe ETU300 LSI trip unit provides three independently adjustable protection functions: long-time delay (L) for overload, short-time delay (S) for selective fault discrimination, and instantaneous (I) for direct short-circuit tripping. This allows downstream selectivity coordination without requiring a more complex trip unit. The factory-fitted 2NO+2NC auxiliary contacts feed directly into SCADA or PLC discrete inputs without additional wiring accessories.\u003c\/p\u003e\n\u003cp\u003eFixed mounting eliminates the draw-out rail and shutter mechanism, reducing panel depth and overall cubicle cost where the breaker does not need to be isolated under live-bus conditions. Horizontal busbar connection aligns with standard rear-connected busbar systems used in form 3b and form 4 switchgear assemblies. At 33.229 kg, panel structural calculations should account for this load when specifying door-mounted or top-mounted configurations.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":52411693662491,"sku":"3WA1125-3AB02-0AA0","price":5201.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/3wa1125-3ab02-0aa0_ac126486-50d7-4849-80f0-a54a79a3d5f8.webp?v=1782636504","url":"https:\/\/stoklink.com\/products\/siemens-3wa1125-3ab02-0aa0-3wa-2500a-3p-66ka-acb","provider":"Stoklink","version":"1.0","type":"link"}