{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS2JU3","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS2JU3","canonicalUrl":"https://aoctrl.com/schneider/GS2JU3","factsUrl":"https://aoctrl.com/api/mcp/products/GS2JU3","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys GS GS2JU3 switch-disconnector-fuse, 3 poles, UL 100 A, fuse size J, 22 kA short-circuit withstand, IP20 with terminal cover.","salesMarkdown":"## What the 100 A rating means for panel fit The GS2JU3 is a 3-pole switch-disconnector-fuse rated 100 A conventional free-air thermal current (Ith) at 40 °C, and the same 100 A as its rated operational current (Ie). That means it handles continuous 100 A loads without derating at 40 °C ambient — a common panel temperature. For higher ambients, the Ith rating is the limiting factor; the 100 A figure is the ceiling at 40 °C, not a blanket rating. The 22 kA short-circuit withstand rating (SCCR) at the stated voltage is the key coordination number for the panel builder: it tells the upstream protection device what fault level this switch can survive without welding or rupturing. That 22 kA is the interrupting rating of the fuse holder itself, assuming the correct J-class fuse is installed. ## Standards and compliance documentation Certified to UL98 and CSA C22.2 No 4 — these are the governing standards for enclosed and dead-front switches in North America. UL98 covers the switch-disconnector function; CSA C22.2 No 4 covers the same for Canadian installations. The body material is rated for 960 °C fire resistance per the glow-wire test, which satisfies the thermal stress requirements of both standards. The IP20 rating (with terminal cover fitted) means the enclosure protects against solid objects larger than 12.5 mm — fingers, tools — but not against moisture. This is standard for panel-mounted disconnect switches where the panel door provides the environmental seal. The operating handle is external frontal, so the switch can be operated with the door closed.","metaTitle":"TeSys GS2JU3 Switch-Disconnector-Fuse, 100 A, 3P, UL98","metaDescription":"TeSys GS GS2JU3 switch-disconnector-fuse, 100 A rated operational current, 3 poles, fuse size J, UL98 and CSA C22.2 No 4 certified.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"4.8 in (122.2 mm)","Range":"TeSys","Width":"5.9 in (149.3 mm)","title":"GS2JU3","Height":"7.3 in (186 mm)","Category":"22640-IEC DISCONNECT-GS1,LK3","Fuse size":"J","Fuse type":"UL","Standards":"UL98 CSA C22.2 No 4","description":"TeSys GS - switch-disconnector-fuse - 3 P - UL 100 A - fuse size J","Network type":"AC DC","Product name":"TeSys GS","Fire resistance":"1760 °F (960 °C) body","lifecycle_stage":"current","Mounting Support":"Plate","Device short name":"GS2J","Network Frequency":"50/60 Hz","Poles description":"3P","Tightening torque":"Power circuit 35.4 lbf.in (4 N.m)","Electrical durability":"6000 cycles","Mechanical durability":"10000 cycles","Connections - terminals":"lugs-ring terminals 0.05...0.07 in² (34...42 mm²) Power circuit bars","IP degree of protection":"IP20 IEC 60529 with terminal cover)","Short-circuit withstand":"22 kA","Type of operating handle":"External frontal","Product or Component Type":"Switch-disconnector-fuse","Protected poles description":"3t","Rated operational power in W":"51 kW 400 V 63 kW 500 V 90 kW 690 V","Contacts type and composition":"3 NO","[Ui] rated insulation voltage":"750 V","[Ie] rated operational current":"100 A","Ambient Air Temperature for Storage":"-40...176 °F (-40...80 °C)","Ambient Air Temperature for Operation":"-4...158 °F (-20...70 °C)","[Uimp] rated impulse withstand voltage":"8 kV","[Ith] conventional free air thermal current":"100 A (at 104 °F (40 °C))"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/nl/en/product/GS2JU3/tesys-gs-switchdisconnectorfuse-3-p-ul-100-a-fuse-size-j/"},"ai":{"faq":[{"question":"What compliance documentation does GS2JU3 carry?","answer":"Certified to UL98 and CSA C22.2 No 4. The body material passes a 960 °C glow-wire test. The IP20 rating with terminal cover is per IEC 60529. These certifications cover the switch-disconnector function for North American and Canadian installations."},{"question":"What is the closest pin-compatible alternative to GS2JU3 in the TeSys GS family?","answer":"The TeSys GS range includes other 3-pole switch-disconnector-fuse units in different current ratings and fuse sizes. The GS2JU3 is the 100 A, fuse size J variant. A direct pin-compatible alternative would be a different current rating within the same GS2J footprint — but the fuse clip spacing and terminal layout differ by fuse class, so verify the BOM position before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS2JU3","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/GS2JU3 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}}