{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS1KKG4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS1KKG4","canonicalUrl":"https://aoctrl.com/schneider/GS1KKG4","factsUrl":"https://aoctrl.com/api/mcp/products/GS1KKG4","rawCanonicalId":null},"summary":{"shortDescription":"TeSys GS, fuse switch disconnector body, GS1KKG4, 4 poles, DIN mount, 125 A rated operational current, IP20.","salesMarkdown":"The TeSys GS GS1KKG4 is a 4-pole fuse switch disconnector body rated for 125 A conventional free air thermal current. It's the core switching element for a fused disconnect — you add the fuse links and the operating handle separately. The 4-pole configuration handles three-phase plus neutral, or two independent supplies, depending on your circuit layout. Rated operational current hits 125 A at 400 V AC-23A and AC-23B, which covers motor switching with occasional overloads. Breaking capacity is 1000 A at 400 V AC-23B, making capacity 1250 A at the same voltage — that's the fault it can close into without welding contacts. For higher fault levels, the short-circuit making capacity with associated gG fuses reaches 100 kA at 400 V. The external left-side operating handle means the switch is actuated from the left face, which matters for panel layout when you're stacking multiple disconnects in a row. Power circuit terminals accept bars or screw terminals for 35 to 95 mm² flexible cable; torque to 12 N·m. The TH protective treatment means it's tropicalized for humid environments, which is standard for most industrial panels but worth noting if your site sees condensation.","metaTitle":"TeSys GS1KKG4 fuse switch disconnector body, 125 A, 4P, DIN","metaDescription":"TeSys GS1KKG4 fuse switch disconnector body, 125 A rated, 4 poles, DIN mount. Breaking capacity 1000 A at 400 V AC-23B. Active production. IEC 60947-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"title":"GS1KKG4","Category":"18402-WORLD SERVICE PARTS(CONTROL ACCESS)","Fuse size":"T00","Fuse type":"DIN","Standards":"IEC 60947-3 IEC 60269-1 IEC 60269-2","description":"switch-disconnector fuse body GS1 - TeSys GS - 4 poles - DIN - 125 A","Network type":"AC DC","Fire resistance":"1562 °F (850 °C) fuse cover IEC 60695-2-1 1760 °F (960 °C) body IEC 60695-2-1","Making capacity":"1250 A 400 V AC-23B","lifecycle_stage":"current","Mounting Support":"Plate Rail","Breaking capacity":"1000 A 400 V AC-23B)","Device short name":"GS1 K","Network Frequency":"50/60 Hz","Poles description":"4P","Tightening torque":"Power circuit 106.2 lbf.in (12 N.m) bars Power circuit 106.2 lbf.in (12 N.m) screw terminals","Protective treatment":"TH","Electrical durability":"1000 cycles AC-23A 1000 cycles AC-23B","Mechanical durability":"10000 cycles","Connections - terminals":"Power circuit bars Power circuit screw terminals 0.05...0.1 in² (35...95 mm²) flexible","IP degree of protection":"IP20 IEC 60529 with terminal cover)","Type of operating handle":"External left 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":"750 V AC 50/60 Hz","[Ie] rated operational current":"100 A 440 V 2 poles in series per phase DC-23A 100 A 440 V 2 poles in series per phase DC-23B 100 A 690 V with terminal cover AC-23A 100 A 690 V with terminal cover AC-23B 125 A 400 V AC-23A 125 A 400 V AC-23B 125 A 500 V AC-23A 125 A 500 V AC-23B","[Uimp] rated impulse withstand voltage":"8 kV","[Icm] rated short-circuit making capacity":"100 kA 400 V with protection by gG (gI) fuses 125 kA rating of associated fuses","[Ith] conventional free air thermal current":"125 A (at 104 °F (40 °C))"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ac3f804cc0d199e61db59758aa3ebe88.pdf","sourceUrl":"https://www.se.com/ie/en/product/GS1KKG4/switchdisconnector-fuse-body-gs1-tesys-gs-4-poles-din-125-a/"},"ai":{"faq":[{"question":"What fuse size does this body accept?","answer":"It accepts T00 DIN fuse links, which is a standard size for this current class. The fuse type is DIN (blade-style)."},{"question":"What are the key ratings for this disconnect?","answer":"Rated operational current is 125 A at 400 V AC-23A/B. Breaking capacity is 1000 A at 400 V AC-23B. Making capacity is 1250 A at 400 V AC-23B. With associated gG fuses, short-circuit making capacity reaches 100 kA at 400 V."},{"question":"What standards does it comply with?","answer":"It complies with IEC 60947-3 (switch-disconnectors), IEC 60269-1 (low-voltage fuses), and IEC 60269-2 (supplemental fuses). The fire resistance rating is 850 °C for the fuse cover and 960 °C for the body per IEC 60695-2-1."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS1KKG4","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/GS1KKG4 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}}