{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS2SG3","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS2SG3","canonicalUrl":"https://aoctrl.com/schneider/GS2SG3","factsUrl":"https://aoctrl.com/api/mcp/products/GS2SG3","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys GS series, switch-disconnector-fuse, GS2SG3, 3-pole, 630A, DIN fuse size 3, rated 630A at 400V AC-23B.","salesMarkdown":"The GS2SG3 is a TeSys GS switch-disconnector-fuse, 3-pole, rated for 630 A at 400 V in AC-23B duty — that's the heavy motor switching category per IEC 60947-3, so it handles starting surges and load-break on induction motors up to that current without welding the contacts. It accepts DIN fuse-links size 3, three protected poles (3t), and mounts to a plate — no DIN-rail clip, so budget for a backplate or enclosure sub-panel. Rated operational power runs to 355 kW at 400 V and 400 kW at 690 V, making this a main incoming or large motor feeder switch for industrial panels up to that load class. Breaking capacity is 5040 A at 400 V (AC-23B), and making capacity hits 6300 A at the same voltage — that's the fault-closing capability, so it can be closed onto a bolted fault without exploding the switch. Short-circuit withstand is 70 kA, backed by an 80 kA rated short-circuit making capacity (Icm) when protected by gG fuses — the fuses do the interrupting, but the switch must survive the let-through until they clear. Rated insulation voltage is 1000 V AC, impulse withstand 12 kV — fine for 690 V line-to-line systems and gives headroom for transient-heavy environments like VFD line reactors or welding supplies. Plate-mount only — the external left-side operating handle means it's designed for enclosure-door interlocking, not standalone DIN-rail use. Factor in the handle cut-out and door interlock bracket. Power terminals accept bars up to 63 mm² or ring lugs for two cables up to 300 mm² each — big enough for paralleled feeders. Tightening torque is 44 N.m on the power circuit, so a decent torque wrench is needed. ## Durability and compliance Mechanical durability is 8000 cycles — that's the handle-to-contact mechanism life. Electrical durability is 1000 cycles at AC-23A or AC-23B, and 200 cycles at DC-23A or DC-23B. For frequent switching (e.g., a welding station or a cyclic conveyor), those electrical cycles go fast — plan for a contactor instead if you need hundreds of operations per shift. Fire resistance: the fuse cover withstands 850 °C, the body 960 °C per IEC 60695-2-1 — that's glow-wire tested for flammability, relevant for CE-marked panels and machinery directives.","metaTitle":"GS2SG3 TeSys GS Switch-Disconnector-Fuse, 630A, 3P, DIN","metaDescription":"Active TeSys GS GS2SG3 switch-disconnector-fuse, 630A rated at 400V AC-23B, 3-pole, DIN fuse size 3. IEC 60947-3, IP20. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"250 mm","Range":"TeSys","Width":"364 mm","title":"GS2SG3","Height":"300 mm","Fuse size":"3","Fuse type":"DIN","Standards":"IEC 60947-3","description":"Switch disconnector fuse, TeSys GS, 3P, 630A, fuse type DIN, size 3","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":"6300 A at 400 V AC-23B","lifecycle_stage":"current","Mounting support":"Plate","Breaking Capacity":"60 W","Breaking capacity":"5040 A at 400 V (AC-23B)","Device short name":"GS2S","Network frequency":"50/60 Hz","Poles description":"3P","Tightening torque":"Power circuit: 44 N.m","Electrical durability":"1000 cycles AC-23A 1000 cycles AC-23B 200 cycles DC-23A 200 cycles DC-23B","Mechanical durability":"8000 cycles","Connections - terminals":"Power circuit: bars 63 mm² Power circuit: lugs-ring terminals 2 cable(s) 150 mm² Power circuit: lugs-ring terminals 2 cable(s) 300 mm²","IP degree of protection":"IP20 conforming to IEC 60529 (with terminal cover)","Short-circuit withstand":"70 kA","Type of operating handle":"External left side","Product or component type":"Switch-disconnector-fuse","Protected poles description":"3t","Rated operational power in W":"295 kW at 690 V 355 kW at 400 V 355 kW at 500 V 400 kW at 690 V","Contacts type and composition":"3 NO","[Ui] rated insulation voltage":"1000 V AC 50/60 Hz","[Ie] rated operational current":"400 A at 440 V 2 poles in series per phase DC-23A 630 A at 440 V 2 poles in series per phase DC-23B 315 A at 690 V AC-23A 400 A at 690 V AC-23B 500 A at 500 V AC-23A 500 A at 500 V AC-23B 630 A at 400 V AC-23A 630 A at 400 V AC-23B","Ambient air temperature for storage":"-40...80 °C","Ambient air temperature for operation":"-20...70 °C","[Uimp] rated impulse withstand voltage":"12 kV","[Icm] rated short-circuit making capacity":"80 kA at 400 V with protection by gG fuses","[Ith] conventional free air thermal current":"630 A (at 40 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/vn/en/product/GS2SG3/switch-disconnector-fuse-tesys-gs-3p-630a-fuse-type-din-size-3/"},"ai":{"faq":[{"question":"What are the key ratings I need to check for fit?","answer":"The GS2SG3 is rated 630 A at 400 V AC-23B (motor switching), with a breaking capacity of 5040 A at 400 V and a short-circuit withstand of 70 kA. It accepts DIN fuse-links size 3 and mounts to a plate, not a DIN rail."},{"question":"What compliance standards does the GS2SG3 meet?","answer":"It is designed to IEC 60947-3 for switch-disconnector-fuse performance. The fuse cover and body are glow-wire tested to 850 °C and 960 °C respectively per IEC 60695-2-1. IP20 protection with terminal cover fitted."},{"question":"What is the mounting and connection requirement?","answer":"Plate-mount only — no DIN-rail clip. The external left-side operating handle requires an enclosure door cut-out. Power terminals accept bars up to 63 mm² or ring lugs for two cables up to 300 mm² each, tightened to 44 N.m."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS2SG3","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/GS2SG3 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}}