{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS1NBR3","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS1NBR3","canonicalUrl":"https://aoctrl.com/schneider/GS1NBR3","factsUrl":"https://aoctrl.com/api/mcp/products/GS1NBR3","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys GS GS1NBR3 fuse switch disconnector body, 3 poles, BS fuse type, 250 A rated operational current, 400 V AC-23A/B, IP20 with terminal cover.","salesMarkdown":"## 250 A switch-disconnector body for BS fuse protection The GS1NBR3: This is a TeSys GS fuse switch disconnector body, 3 poles, accepting BS-type fuses (sizes, B3). Rated operational current is 250 A at 400 V in AC-23A and AC-23B duty – the AC-23B rating covers occasional motor switching with inrush, while AC-23A covers frequent switching of resistive or mixed loads. For DC applications, the same body delivers 200 A at 440 V with two poles in series per phase (DC-23A/B). ## Breaking and making capacity – fault handling Breaking capacity is 2000 A at 400 V AC-23B; making capacity is 2500 A at the same voltage. Short-circuit withstand rating is 80 kA – the body is designed to coordinate with upstream BS fuses rated 250 kA making capacity at 400 V. The switch-disconnector itself does not interrupt faults; the fuses do, and the body must survive the let-through energy. ## Panel fit and environmental limits Dimensions are 5.7 in deep, 9.8 in wide, 7.7 in high – the body mounts on a plate or rail. IP20 with the terminal cover fitted (IEC 60529) means it is touch-safe inside an enclosure but not protected against dripping water. Operating temperature range is -20 to 70 °C, with fire resistance of 960 °C on the body and 850 °C on the fuse cover per IEC 60695-2-1. Power circuit terminals accept 95…240 mm² flexible cable; tightening torque is 25 N·m on both power and control terminals. ## Durability and standards Mechanical durability is 10,000 cycles; electrical durability is 1,000 cycles in AC-23A/B and 200 cycles in DC-23A/B. The body complies with IEC 60269-1, IEC 60269-2, and IEC 60947-3. Rated insulation voltage is 750 V AC, impulse withstand voltage is 8 kV. Conventional free-air thermal current is 250 A at 40 °C.","metaTitle":"GS1NBR3 TeSys GS fuse switch disconnector body, 250 A, 3P","metaDescription":"GS1NBR3 TeSys GS fuse switch disconnector body, 3 poles, BS fuse type, rated 250 A at 400 V AC-23A/B. Active production – quoted to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"5.7 in (146 mm)","Width":"9.8 in (250 mm)","title":"GS1NBR3","Height":"7.7 in (195 mm)","Category":"18402-WORLD SERVICE PARTS(CONTROL ACCESS)","Fuse size":"B1 B2 B3","Fuse type":"BS","Standards":"IEC 60269-1 IEC 60269-2 IEC 60947-3","description":"switch-disconnector fuse body GS1 3 poles - BS - 250 A","Network type":"DC AC","Fire resistance":"1760 °F (960 °C) body IEC 60695-2-1 1562 °F (850 °C) fuse cover IEC 60695-2-1","Making capacity":"2500 A 400 V AC-23B","lifecycle_stage":"current","Mounting Support":"Plate Rail","Range of Product":"TeSys GS","Breaking capacity":"2000 A 400 V AC-23B)","Device short name":"GS1 N","Network Frequency":"50/60 Hz","Poles description":"3P","Tightening torque":"Control circuit 221.3 lbf.in (25 N.m) screw terminals Power circuit 221.3 lbf.in (25 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 0.1...0.4 in² (95...240 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":"132 kW 400 V AC-23A) 132 kW 400 V AC-23B) 160 kW 500 V AC-23A) 160 kW 500 V AC-23B) 220 kW 690 V AC-23A) 220 kW 690 V AC-23B)","[Ui] rated insulation voltage":"750 V AC 50/60 Hz","[Ie] rated operational current":"200 A 440 V 2 poles in series per phase DC-23A 200 A 440 V 2 poles in series per phase DC-23B 250 A 400 V AC-23A 250 A 400 V AC-23B 250 A 500 V AC-23A 250 A 500 V AC-23B 250 A 690 V with terminal cover AC-23A 250 A 690 V with terminal cover 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":"250 kA 400 V with protection by BS fuses 250 kA rating of associated fuses","[Ith] conventional free air thermal current":"250 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/us/en/product/GS1NBR3/switchdisconnector-fuse-body-gs1-3-poles-bs-250-a/"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS1NBR3","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/GS1NBR3 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}}