{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS1VB4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS1VB4","canonicalUrl":"https://aoctrl.com/schneider/GS1VB4","factsUrl":"https://aoctrl.com/api/mcp/products/GS1VB4","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys GS GS1VB4 fuse switch disconnector body, 4-pole, BS D1 fuse size, 1250 A conventional free air thermal current, 10 kA breaking capacity at 400 V AC-23B, IP20 with terminal cover.","salesMarkdown":"## Active Production — No Obsolescence Risk The GS1VB4: It is the fuse switch disconnector body from the TeSys GS range, accepting BS-type D1 fuses — the fuses themselves are ordered separately. ## Rated 1250 A — What That Means for Fit The conventional free air thermal current (Ith) is 1250 A at 40 °C, and the rated operational current reaches 1000 A at 400 V in AC-23B duty — this is the figure that governs motor switching or distribution feeder applications. Breaking capacity is 10 kA at 400 V AC-23B, with a making capacity of 8 kA at the same voltage — these numbers define the fault-clearing capability and must coordinate with upstream protection. Rated operational power reaches 600 kW at 690 V AC-23A/B, so the body handles high-power loads when paired with the correct BS fuses. ## Panel Integration and Installation Mounts on a plate or rail — the 14.3 x 25.2 x 13.0 in footprint (363 x 641 x 330 mm) needs a generous enclosure backplate; plan for cable entry and bending radius on the 185 mm² flexible conductors the terminals accept. Power circuit screw terminals accept up to 185 mm² flexible cable, and the tightening torque is 44 N.m — a torque wrench is required for installation. IP20 with the terminal cover fitted means finger-safe but not washdown; this is an indoor panel component, not a field-mounted enclosure. ## Standards and Compliance Designed to IEC 60947-3 (switch-disconnector), IEC 60269-1 and IEC 60269-2 (fuse coordination) — the standards that govern isolation and fuse protection in industrial power circuits. Rated insulation voltage 1000 V AC, impulse withstand 12 kV — confirms insulation coordination for 400 V and 690 V systems with adequate margin. Fire resistance tested to IEC 60695-2-1: body at 960 °C, fuse cover at 850 °C — glow-wire compliance for equipment in fire-risk environments.","metaTitle":"Schneider GS1VB4 TeSys GS Fuse Switch Disconnector Body","metaDescription":"Schneider GS1VB4 TeSys GS fuse switch disconnector body, 4-pole, BS D1 fuses, rated 1250 A at 400 V AC-23B. Active production, sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"14.3 in (363 mm)","Width":"25.2 in (641 mm)","title":"GS1VB4","Height":"13.0 in (330 mm)","Category":"18402-WORLD SERVICE PARTS(CONTROL ACCESS)","Fuse size":"D1","Fuse type":"BS","Standards":"IEC 60947-3 IEC 60269-2 IEC 60269-1","description":"switch-disconnector fuse body GS1 4 poles - BS - 1250 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":"8000 A 400 V AC-23B","lifecycle_stage":"current","Mounting Support":"Plate Rail","Range of Product":"TeSys GS","Breaking capacity":"10000 A 400 V AC-23B)","Device short name":"GS1V","Network Frequency":"50/60 Hz","Poles description":"4P","Tightening torque":"Power circuit 389.4 lbf.in (44 N.m)","Protective treatment":"TH","Electrical durability":"100 cycles DC-23A 500 cycles AC-23A 500 cycles AC-23B","Mechanical durability":"6000 cycles","Connections - terminals":"Power circuit bars 2 0.09 in² (60 mm²) Power circuit screw terminals 4 0.3 in² (185 mm²) flexible Power circuit bars 5 0.2 in² (100 mm²)","IP degree of protection":"IP20 IEC 60529 with terminal cover)","Product or Component Type":"Fuse switch disconnector body","Rated operational power in W":"600 kW 690 V AC-23A) 600 kW 690 V AC-23B) 560 kW 400 V AC-23A) 560 kW 400 V AC-23B) 560 kW 500 V AC-23A) 560 kW 500 V AC-23B)","[Ui] rated insulation voltage":"1000 V AC 50/60 Hz","[Ie] rated operational current":"630 A 690 V AC-23A 630 A 690 V AC-23B 800 A 690 V AC-23A 800 A 690 V AC-23B 1000 A 400 V AC-23A 1000 A 400 V AC-23B 800 A 500 V AC-23A 800 A 500 V AC-23B 1000 A 440 V poles not juxtaposed DC-23A 1000 A 440 V poles not juxtaposed DC-23B","Ambient Air Temperature for Operation":"-4...158 °F (-20...70 °C) operation -40...176 °F (-40...80 °C) storage","[Uimp] rated impulse withstand voltage":"12 kV","[Icm] rated short-circuit making capacity":"1250 kA 400 V with protection by BS fuses 1250 kA rating of associated fuses","[Ith] conventional free air thermal current":"1250 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/nl/en/product/GS1VB4/switchdisconnector-fuse-body-gs1-4-poles-bs-1250-a/"},"ai":{"faq":[{"question":"What is the breaking capacity of GS1VB4?","answer":"The breaking capacity is 10 kA at 400 V AC-23B, with a making capacity of 8 kA at the same voltage. These ratings assume the use of BS-type fuses in the D1 size."},{"question":"What compliance standards does GS1VB4 meet?","answer":"It complies with IEC 60947-3 for switch-disconnectors, IEC 60269-1 and IEC 60269-2 for fuse coordination, and IEC 60695-2-1 for glow-wire fire resistance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS1VB4","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/GS1VB4 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}}