{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS1JB4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS1JB4","canonicalUrl":"https://aoctrl.com/schneider/GS1JB4","factsUrl":"https://aoctrl.com/api/mcp/products/GS1JB4","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys GS GS1JB4 fuse switch disconnector body, 4 poles, BS fuse type, 100 A rated operational current, IP20 with terminal cover, DIN rail or plate mount.","salesMarkdown":"## 100 A rated, 4-pole fuse switch disconnector body The GS1JB4 is a TeSys GS fuse switch disconnector body — the base unit for a 4-pole, BS-type fused disconnect. It carries a 100 A rated operational current (Ie) across AC-23A and AC-23B duty at 400 V, and the same 100 A at 690 V with the terminal cover fitted. Breaking capacity is 800 A at 400 V AC-23B, with a making capacity of 1000 A at the same condition — the disconnect can close onto a fault without welding the contacts. ## Panel fit and mounting constraints The body measures 7.2 in (184 mm) wide by 6.4 in (162 mm) high by 4.2 in (106.5 mm) deep — the width is the critical dimension for a multi-unit lineup on a DIN rail or mounting plate. Panel depth budget must clear the 4.2 in behind the door plus the external operating handle throw. IP20 with the terminal cover in place (IEC 60529) — finger-safe but not protected against moisture ingress. The TH protective treatment (tropicalization) handles humidity in non-washdown environments. ## Active production — sourcing posture Sourced through independent distribution channels against a BOM-quantity RFQ. ## Compliance and documentation baseline Designed and tested to IEC 60269-1, IEC 60269-2 (fuse requirements), and IEC 60947-3 (switch-disconnector standard). The body withstands a glow-wire test at 1760 °F (960 °C) per IEC 60695-2-1; the fuse cover at 1562 °F (850 °C). Rated insulation voltage (Ui) is 750 V AC at 50/60 Hz, with an impulse withstand voltage (Uimp) of 8 kV — suitable for 400 V and 690 V line-to-line systems with adequate clearance in the enclosure.","metaTitle":"TeSys GS1JB4 Fuse Switch Disconnector Body, 100 A, 4-Pole","metaDescription":"Schneider Electric TeSys GS1JB4 fuse switch disconnector body, 100 A rated, 4 poles, BS fuse type, IP20. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"4.2 in (106.5 mm)","Width":"7.2 in (184 mm)","title":"GS1JB4","Height":"6.4 in (162 mm)","Category":"18402-WORLD SERVICE PARTS(CONTROL ACCESS)","Fuse size":"Ø 31 mm","Fuse type":"BS","Standards":"IEC 60269-2 IEC 60269-1 IEC 60947-3","description":"switch-disconnector fuse body GS1 4 poles - BS - 100 A","Network type":"DC AC","Product Weight":"4.4 lb(US) (2 kg)","Fire resistance":"1760 °F (960 °C) body IEC 60695-2-1 1562 °F (850 °C) fuse cover IEC 60695-2-1","Making capacity":"1000 A 400 V AC-23B","lifecycle_stage":"current","Mounting Support":"Plate Rail","Range of Product":"TeSys GS","Breaking capacity":"800 A 400 V AC-23B)","Device short name":"GS1 J","Network Frequency":"50/60 Hz","Poles description":"4P","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":"1500 cycles AC-23A 1500 cycles AC-23B 300 cycles DC-23A 300 cycles DC-23B","Mechanical durability":"10000 cycles","Connections - terminals":"Power circuit: bars Power circuit: screw terminals 0.04...0.1 in² (25...95 mm²) flexible","IP degree of protection":"IP20 IEC 60529 with terminal cover)","Short-circuit withstand":"80 kA","Type of operating handle":"External right side External frontal","Product or Component Type":"Fuse switch disconnector body","Rated operational power in W":"51 kW 400 V AC-23A) 51 kW 400 V AC-23B) 63 kW 500 V AC-23A) 63 kW 500 V AC-23B) 90 kW 690 V AC-23A) 90 kW 690 V AC-23B)","[Ui] rated insulation voltage":"750 V AC 50/60 Hz","[Ie] rated operational current":"100 A 400 V AC-23A 100 A 400 V AC-23B 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 500 V AC-23A 100 A 500 V AC-23B 100 A 690 V with terminal cover AC-23A 100 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":"100 kA 400 V with protection by BS fuses 100 kA rating of associated fuses","[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/ie/en/product/GS1JB4/switchdisconnector-fuse-body-gs1-4-poles-bs-100-a/"},"ai":{"faq":[{"question":"What is GS1JB4's rated breaking capacity?","answer":"Breaking capacity is 800 A at 400 V AC-23B. The making capacity is 1000 A at the same condition — the disconnect can close onto a fault without contact welding."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS1JB4","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/GS1JB4 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}}