{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS2KG3","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS2KG3","canonicalUrl":"https://aoctrl.com/schneider/GS2KG3","factsUrl":"https://aoctrl.com/api/mcp/products/GS2KG3","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys GS, switch-disconnector-fuse, GS2KG3, 3 poles, 125 A, NFC fuse 22x58 mm, 10 kA breaking capacity at 400 V AC-23B.","salesMarkdown":"It accepts NFC-type fuses in the 22x58 mm size, making it a fused disconnect for motor branch circuits or distribution feeders where overcurrent protection is integrated into the switch itself. Rated operational current reaches 125 A at 400 V under AC-23A and AC-23B duty, and 100 A at 690 V in the same categories. For DC applications, it handles 100 A at 440 V with two poles in series per phase. It is designed for plate mounting, with an external left-side operating handle. The power circuit accepts bars up to 20 mm² or lugs/ring terminals from 35 to 95 mm², torqued to 12 N·m. IP20 with the terminal cover fitted, so it belongs inside a panel, not exposed to washdown. The 125 A rating at 400 V AC-23A/B is the headline number for motor switching: AC-23A covers occasional switching of motors and other highly inductive loads, while AC-23B adds the requirement for infrequent switching under fault conditions. The 20 kA short-circuit withstand rating (with appropriate upstream protection) gives coordination headroom. Rated operational power reaches 63 kW at 400 V, 90 kW at 500 V, and 80 kW at 690 V — these are the motor sizes this switch can handle at those voltages, assuming the fuse is correctly selected. Mechanical durability is 10,000 cycles; electrical durability varies by duty: 1000 cycles under AC-23A or DC-23A, dropping to 200 cycles under the more demanding AC-23B or DC-23B. This is a switch-disconnector, not a contactor — it is not designed for frequent switching under load. Use it for isolation and infrequent motor starting, not for continuous duty cycling. The GS2KG3 is designed and tested to IEC 60947-3, the standard for switches, disconnectors, switch-disconnectors and fuse-combination units. Fire resistance is rated at 850 °C for the fuse cover and 960 °C for the body, per IEC 60695-2-1.","metaTitle":"Schneider GS2KG3 TeSys GS Switch-Disconnector-Fuse, 125A, 3P","metaDescription":"Schneider Electric GS2KG3 TeSys GS switch-disconnector-fuse, 3 poles, 125 A rated current, NFC fuse type 22x58 mm, breaking capacity 10 kA at 400 V AC-23B. Active production. Sourc","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"116 mm","Range":"TeSys","Width":"148 mm","title":"GS2KG3","Height":"162 mm","Fuse size":"22 x 58 mm","Fuse type":"NFC","Standards":"IEC 60947-3","description":"Switch disconnector fuse, TeSys GS, 3P, 125A, fuse type NFC, size 22x58 mm","Network type":"AC DC","Product name":"TeSys GS","Fire resistance":"850 °C fuse cover conforming to IEC 60695-2-1 960 °C body conforming to IEC 60695-2-1","Making capacity":"1000 A at 400 V AC-23B","lifecycle_stage":"current","Mounting support":"Plate","Breaking capacity":"10000 A at 400 V (AC-23B)","Device short name":"GS2K","Network frequency":"50/60 Hz","Poles description":"3P","Tightening torque":"Power circuit: 12 N.m","Electrical durability":"1000 cycles AC-23A 1000 cycles DC-23A 200 cycles AC-23B 200 cycles DC-23B","Mechanical durability":"10000 cycles","Connections - terminals":"Power circuit: bars20 mm² Power circuit: lugs-ring terminals35...95 mm²","IP degree of protection":"IP20 conforming to IEC 60529 (with terminal cover)","Short-circuit withstand":"20 kA","Type of operating handle":"External left side","Product or component type":"Switch-disconnector-fuse","Protected poles description":"3t","Rated operational power in W":"63 kW at 400 V 90 kW at 500 V 80 kW at 690 V","Contacts type and composition":"3 NO","[Ui] rated insulation voltage":"750 V AC 50/60 Hz","[Ie] rated operational current":"100 A at 440 V 2 poles in series per phase DC-23A 100 A at 440 V 2 poles in series per phase DC-23B 100 A at 690 V AC-23A 100 A at 690 V AC-23B 125 A at 400 V AC-23A 125 A at 400 V AC-23B 125 A at 500 V AC-23A 125 A at 500 V AC-23B","Ambient air temperature for storage":"-40...80 °C","Ambient air temperature for operation":"-20...70 °C","[Uimp] rated impulse withstand voltage":"8 kV","[Icm] rated short-circuit making capacity":"100 kA at 400 V with protection by gG fuses","[Ith] conventional free air thermal current":"125 A (at 40 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$334.80","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/ie/en/product/GS2KG3/switch-disconnector-fuse-tesys-gs-3p-125a-fuse-type-nfc-size-22x58-mm/"},"ai":{"faq":[{"question":"What are the key ratings for the GS2KG3?","answer":"The GS2KG3 is a 3-pole switch-disconnector-fuse rated 125 A conventional free-air thermal current (Ith) at 40 °C. Breaking capacity is 10 kA at 400 V (AC-23B). It accepts NFC-type fuses in the 22x58 mm size. Rated operational power reaches 63 kW at 400 V, 90 kW at 500 V, and 80 kW at 690 V."},{"question":"What standard does the GS2KG3 comply with?","answer":"The GS2KG3 is designed and tested to IEC 60947-3, the standard for switches, disconnectors, switch-disconnectors and fuse-combination units. Fire resistance testing follows IEC 60695-2-1."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS2KG3","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/GS2KG3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}