{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS1SD4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS1SD4","canonicalUrl":"https://aoctrl.com/schneider/GS1SD4","factsUrl":"https://aoctrl.com/api/mcp/products/GS1SD4","rawCanonicalId":null},"summary":{"shortDescription":"TeSys GS fuse switch disconnector body, GS1S series, 4 poles, DIN rail mount, 630 A rated operational current, IEC 60269 and IEC 60947 compliant.","salesMarkdown":"The GS1SD4 is a TeSys GS fuse switch disconnector body — a 4-pole, DIN-rail-mounted unit rated for 630 A conventional free air thermal current at 40 °C. That 630 A figure is your headline: it tells you the body can carry that much continuous current without exceeding its temperature rise limits, as long as the ambient stays under 40 °C. The real work rating depends on your load type and voltage — for AC-23B motor switching at 400 V, it's still good for 630 A, and at 690 V AC-23A it's rated 315 A. So for a heavy motor or resistive bank on a 400 V line, this body has the copper to handle it. Making capacity is 6300 A at the same voltage, meaning it can close onto a fault without welding contacts. Both numbers come from the IEC 60947-3 standard, which governs switch-disconnector performance. For a 400 V panel with a service entrance rated higher than 5 kA, you'll want to check the upstream fuse coordination to keep this body within its interrupt rating. The 4-pole configuration covers three-phase plus neutral or a second switched pole, common in distribution and motor feeder circuits. The operating handle is on the right side, which matters for panel layout if you're stacking multiple units side by side — keep clearance for the handle swing. Connections are via power circuit bars or screw terminals accepting up to 2 x 300 mm² flexible cable, torqued to 44 N·m. That's a serious lug, sized for the 630 A rating. The fuse cover is rated for 850 °C glow-wire test and the body for 960 °C, per IEC 60695-2-1. That fire resistance means it won't propagate a flame if a fuse blows hard. The GS1SD4 is designed and tested to IEC 60269-1, IEC 60269-2 (fuse standards), and IEC 60947-3 (switch-disconnector standard). Rated insulation voltage is 1000 V AC, and impulse withstand voltage is 12 kV. That 12 kV figure is the surge it can take without flashover — important for installations with lightning risk or switching transients. Rated short-circuit making capacity with gG fuse protection is 100 kA at 400 V, but that's limited by the fuse rating of 630 A — the fuse clears the fault, not the switch body, so the body just has to survive the let-through.","metaTitle":"GS1SD4 TeSys GS Fuse Switch Disconnector Body, 630 A, 4 Pole","metaDescription":"GS1SD4 TeSys GS fuse switch disconnector body, 4 poles, DIN rail mount, rated 630 A at 400 V AC-23B. Active production. IEC 60269, IEC 60947. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"title":"GS1SD4","Category":"18402-WORLD SERVICE PARTS(CONTROL ACCESS)","Fuse size":"T3","Fuse type":"DIN","Standards":"IEC 60269-2 IEC 60947-3 IEC 60269-1","description":"switch-disconnector fuse body GS1 - TeSys GS - 4 poles - DIN - 630 A","Network type":"DC AC","Fire resistance":"1562 °F (850 °C) fuse cover IEC 60695-2-1 1760 °F (960 °C) body IEC 60695-2-1","Making capacity":"6300 A 400 V AC-23B","lifecycle_stage":"current","Mounting Support":"Plate Rail","Breaking capacity":"5040 A 400 V AC-23B)","Device short name":"GS1S","Network Frequency":"50/60 Hz","Poles description":"4P","Tightening torque":"Power circuit 389.4 lbf.in (44 N.m) bars Power circuit 389.4 lbf.in (44 N.m) screw terminals","Protective treatment":"TH","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 Power circuit screw terminals 2 0.2 in² (150 mm²) flexible Power circuit screw terminals 2 0.5 in² (300 mm²) flexible","IP degree of protection":"IP20 IEC 60529 with terminal cover)","Type of operating handle":"Right side","Product or Component Type":"Fuse switch disconnector body","Rated operational power in W":"690 V AC-23A) 690 V AC-23B) 400 V AC-23A) 400 V AC-23B) 500 V AC-23A) 500 V AC-23B)","[Ui] rated insulation voltage":"1000 V AC 50/60 Hz","[Ie] rated operational current":"315 A 690 V AC-23A 315 A 690 V AC-23B 400 A 440 V poles not juxtaposed DC-23A 400 A 440 V poles not juxtaposed DC-23B 400 A 690 V AC-23A 400 A 690 V AC-23B 500 A 500 V AC-23A 500 A 500 V AC-23B 630 A 400 V AC-23A 630 A 400 V AC-23B 630 A 440 V poles not juxtaposed DC-23A 630 A 440 V poles not juxtaposed DC-23B","[Uimp] rated impulse withstand voltage":"12 kV","[Icm] rated short-circuit making capacity":"100 kA 400 V with protection by gG (gI) fuses 630 kA rating of associated fuses","[Ith] conventional free air thermal current":"630 A (at 104 °F (40 °C))"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/23997e44516a8ba9d76ca995325fbcd7.pdf","sourceUrl":"https://www.se.com/ie/en/product/GS1SD4/switchdisconnector-fuse-body-gs1-tesys-gs-4-poles-din-630-a/"},"ai":{"faq":[{"question":"What fuse size does the GS1SD4 accept?","answer":"It takes DIN fuses, size T3. That's the standard cylindrical fuse form factor for the 630 A class."},{"question":"What are the key ratings for the GS1SD4?","answer":"Rated operational current is 630 A at 400 V AC-23B, with a conventional free air thermal current of 630 A at 40 °C. Breaking capacity is 5040 A at 400 V AC-23B. It's a 4-pole body rated for 1000 V AC insulation voltage."},{"question":"What standards does the GS1SD4 comply with?","answer":"It complies with IEC 60269-1, IEC 60269-2 (fuse standards), and IEC 60947-3 (switch-disconnector standard). The fuse cover passes 850 °C glow-wire and the body passes 960 °C per IEC 60695-2-1."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS1SD4","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/GS1SD4 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}}