{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS1LBR3","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS1LBR3","canonicalUrl":"https://aoctrl.com/schneider/GS1LBR3","factsUrl":"https://aoctrl.com/api/mcp/products/GS1LBR3","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys GS GS1LBR3 fuse switch disconnector body, 3-pole, BS type, 160 A, 400 V AC-23A, IP20, rail/plate mount.","salesMarkdown":"## What This Fuse Switch Disconnector Body Delivers The GS1LBR3 is the body of a TeSys GS fuse switch disconnector, 3-pole, designed for BS-type fuses. It is the core switching and isolating element for a fuse-protected motor or distribution circuit, accepting the fuse carrier and operating mechanism. Rated 160 A conventional free-air thermal current (Ith) at 40 °C, and 160 A in AC-23A/AC-23B duty at 400 V, this body handles motor switching and isolation up to 80 kW at 400 V or 110 kW at 500/690 V. The AC-23 category means it is suited for occasional switching of motors and other highly inductive loads — not continuous resistive heating duty. ## Breaking, Making, and Withstand Capacity Breaking capacity is 1280 A at 400 V AC-23B; making capacity is 1600 A at the same voltage and duty. These figures define the maximum fault current the disconnector can safely close onto or interrupt in motor-switching service — a key parameter for coordination with upstream protection. Short-circuit withstand rating is 80 kA, meaning the body can survive a fault of that magnitude when backed by the correct BS fuse links. The associated rated short-circuit making capacity (Icm) is 1.6 kA at 400 V with BS fuse protection. ## Physical Fit and Panel Integration Dimensions are 7.5 in (190 mm) wide, 4.8 in (123 mm) deep, and 6.4 in (162 mm) high. Mounting is via rail or plate — the body accepts the standard TeSys GS mounting footprint, so it fits the same panel cut-out or DIN-rail adapter as other GS1L units. Power circuit connections accept bars or screw terminals for 50–95 mm² flexible cable. The right-side operating handle position is factory-set; the body ships with IP20 protection with the terminal cover fitted, meeting IEC 60529 for finger-safe installation inside an enclosure. ## Compliance and Environmental Tolerance Certified to IEC 60269-1, IEC 60269-2, and IEC 60947-3 — the fuse-switch-disconnector standards for low-voltage switching and isolation. The body and fuse cover withstand a 960 °C and 850 °C glow-wire test (IEC 60695-2-1), confirming fire resistance for the enclosure. Rated insulation voltage (Ui) is 750 V AC at 50/60 Hz, with an impulse withstand voltage (Uimp) of 8 kV. Operating ambient temperature range is –20 °C to +70 °C, with protective treatment TH for tropical environments. ## Lifecycle and Sourcing Reality Electrical durability is rated 1000 cycles in AC-23A/AC-23B duty and 200 cycles in DC-23A/DC-23B. Mechanical durability is 10,000 cycles — the body is designed for occasional switching, not high-cycle automation. For a panel builder or MRO planner, this means the disconnector is a fit-and-forget isolation point, not a daily-operate switch.","metaTitle":"Schneider Electric GS1LBR3 TeSys GS Fuse Switch Disconnector","metaDescription":"Schneider Electric GS1LBR3 TeSys GS fuse switch disconnector body, 3-pole, BS type, rated 160 A AC-23A at 400 V. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"4.8 in (123 mm)","Width":"7.5 in (190 mm)","title":"GS1LBR3","Height":"6.4 in (162 mm)","Category":"18402-WORLD SERVICE PARTS(CONTROL ACCESS)","Fuse size":"B1 A4 B2","Fuse type":"BS","Standards":"IEC 60269-2 IEC 60269-1 IEC 60947-3","description":"switch-disconnector fuse body GS1 3 poles - BS - 160 A","Network type":"AC DC","Fire resistance":"1760 °F (960 °C) body IEC 60695-2-1 1562 °F (850 °C) fuse cover IEC 60695-2-1","Making capacity":"1600 A 400 V AC-23B","lifecycle_stage":"current","Mounting Support":"Rail Plate","Range of Product":"TeSys GS","Breaking capacity":"1280 A 400 V AC-23B)","Device short name":"GS1 L","Network Frequency":"50/60 Hz","Poles description":"3P","Tightening torque":"Control circuit 106.2 lbf.in (12 N.m) screw terminals Power circuit 106.2 lbf.in (12 N.m) bars","Protective treatment":"TH","Electrical durability":"1000 cycles AC-23A 1000 cycles AC-23B 200 cycles DC-23A 200 cycles DC-23B","Mechanical durability":"10000 cycles","Connections - terminals":"Power circuit bars Power circuit screw terminals 0.08...0.1 in² (50...95 mm²) flexible","IP degree of protection":"IP20 IEC 60529 with terminal cover)","Short-circuit withstand":"80 kA","Type of operating handle":"Right side","Product or Component Type":"Fuse switch disconnector body","Rated operational power in W":"110 kW 500 V AC-23A) 110 kW 500 V AC-23B) 110 kW 690 V AC-23A) 110 kW 690 V AC-23B) 80 kW 400 V AC-23A) 80 kW 400 V AC-23B)","[Ui] rated insulation voltage":"750 V AC 50/60 Hz","[Ie] rated operational current":"125 A 440 V 2 poles in series per phase DC-23A 125 A 440 V 2 poles in series per phase DC-23B 125 A 690 V with terminal cover AC-23A 125 A 690 V with terminal cover AC-23B 160 A 400 V AC-23A 160 A 400 V AC-23B 160 A 500 V AC-23A 160 A 500 V AC-23B","Ambient Air Temperature for Operation":"-4...158 °F (-20...70 °C)","[Uimp] rated impulse withstand voltage":"8 kV","[Icm] rated short-circuit making capacity":"160 kA rating of associated fuses 1.6 kA 400 V with protection by BS fuses","[Ith] conventional free air thermal current":"160 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/ie/en/product/GS1LBR3/switchdisconnector-fuse-body-gs1-3-poles-bs-160-a/"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS1LBR3","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/GS1LBR3 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}}