{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS1SB4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS1SB4","canonicalUrl":"https://aoctrl.com/schneider/GS1SB4","factsUrl":"https://aoctrl.com/api/mcp/products/GS1SB4","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys GS GS1SB4 fuse switch disconnector body, 4-pole, BS fuse type, 630 A, 400 V AC-23B, IP20, DIN rail or plate mount.","salesMarkdown":"## 630 A Fuse Switch Disconnector for Motor and Distribution Circuits The GS1SB4 is a 4-pole fuse switch disconnector body from the TeSys GS range, designed for AC and DC networks at 50/60 Hz. It accepts BS-type fuses (size C2 C1) and is rated for a conventional free air thermal current of 630 A at 104 °F (40 °C). In AC-23B duty at 400 V, the making capacity is 6300 A and the breaking capacity is 5040 A — sufficient for switching motor loads with occasional inrush. The rated operational power reaches 355 kW at 400 V AC-23A/B, and up to 400 kW at 690 V AC-23A/B. ## Mounting, Protection, and Environmental Ratings Mounts on a plate or DIN rail. The body measures 10.6 in deep, 19.7 in wide, and 11.8 in high — plan for panel cutout and clearance around the external right-side or frontal operating handle. IP20 protection with the terminal cover fitted (IEC 60529) — suitable for enclosed panel installation where no water ingress is expected. The body and fuse cover meet fire-resistance ratings of 1760 °F (960 °C) and 1562 °F (850 °C) respectively per IEC 60695-2-1. Operates in ambient temperatures from -4 °F to 158 °F (-20 °C to 70 °C) with TH protective treatment. Rated insulation voltage is 1000 V AC, and impulse withstand voltage is 12 kV. ## Durability and Connection Details Mechanical durability is 8000 cycles; electrical durability is 1000 cycles in AC-23A/B and 200 cycles in DC-23A/B. These figures set the expected service life before contact maintenance — relevant for MRO planning on frequently switched loads. Power circuit terminals accept up to 2 × 0.5 in² (300 mm²) flexible cable via screw terminals or bars. Control circuit tightening torque is 389.4 lbf·in (44 N·m). The short-circuit making capacity with BS fuses is 630 kA at 400 V.","metaTitle":"Schneider Electric GS1SB4 TeSys GS Fuse Switch Disconnector","metaDescription":"Schneider Electric GS1SB4 TeSys GS fuse switch disconnector body, 4-pole, BS fuses, rated 630 A at 400 V AC-23B. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"10.6 in (268 mm)","Width":"19.7 in (501.5 mm)","title":"GS1SB4","Height":"11.8 in (300 mm)","Category":"18402-WORLD SERVICE PARTS(CONTROL ACCESS)","Fuse size":"C2 C1","Fuse type":"BS","Standards":"IEC 60269-1 IEC 60269-2 IEC 60947-3","description":"switch-disconnector fuse body GS1 4 poles - BS - 630 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":"6300 A 400 V AC-23B","lifecycle_stage":"current","Mounting Support":"Plate Rail","Range of Product":"TeSys GS","Breaking capacity":"5040 A 400 V AC-23B)","Device short name":"GS1S","Network Frequency":"50/60 Hz","Poles description":"4P","Tightening torque":"Control circuit 389.4 lbf.in (44 N.m) screw terminals Power circuit 389.4 lbf.in (44 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":"8000 cycles","Connections - terminals":"Power circuit bars Power circuit screw terminals 2 0.2 in² (150 mm²) flexible Power circuit screw terminals 2 0.5 in² (300 mm²) flexible","IP degree of protection":"IP20 IEC 60529 with terminal cover)","Type of operating handle":"External right side External frontal","Product or Component Type":"Fuse switch disconnector body","Rated operational power in W":"295 kW 690 V AC-23A) 295 kW 690 V AC-23B) 355 kW 400 V AC-23A) 355 kW 400 V AC-23B) 355 kW 500 V AC-23A) 355 kW 500 V AC-23B) 400 kW 690 V AC-23A) 400 kW 690 V AC-23B)","[Ui] rated insulation voltage":"1000 V AC 50/60 Hz","[Ie] rated operational current":"315 A 690 V AC-23A 315 A 690 V AC-23B 400 A 440 V poles not juxtaposed DC-23A 400 A 440 V poles not juxtaposed DC-23B 400 A 690 V AC-23A 400 A 690 V AC-23B 500 A 500 V AC-23A 500 A 500 V AC-23B 630 A 400 V AC-23A 630 A 400 V AC-23B 630 A 440 V poles not juxtaposed DC-23A 630 A 440 V poles not juxtaposed DC-23B","Ambient Air Temperature for Operation":"-4...158 °F (-20...70 °C)","[Uimp] rated impulse withstand voltage":"12 kV","[Icm] rated short-circuit making capacity":"630 kA 400 V with protection by BS fuses 630 kA rating of associated fuses","[Ith] conventional free air thermal current":"630 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/GS1SB4/switchdisconnector-fuse-body-gs1-4-poles-bs-630-a/"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS1SB4","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/GS1SB4 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}}