{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"GS1DB4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"GS1DB4","canonicalUrl":"https://aoctrl.com/schneider/GS1DB4","factsUrl":"https://aoctrl.com/api/mcp/products/GS1DB4","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys GS GS1DB4 fuse switch disconnector body, 4 poles (3P+Nc), BS fuse size A1, 32 A rated current, 400 V AC-23B, IP20, plate or rail mount.","salesMarkdown":"## Rated for motor switching — AC-23B duty cycle The GS1DB4 is a fuse switch disconnector body from the TeSys GS range, designed for switching motor loads under AC-23B duty — the category that covers occasional switching of motors during normal operation, including starting, stopping, and inching. The rated operational current is 32 A at 400 V AC-23B, with a making capacity of 320 A and a breaking capacity of 256 A at the same voltage. That making-to-breaking ratio reflects the inrush current of an induction motor: the contacts must close into a stalled-rotor current several times the full-load rating, then interrupt the running current on a normal stop. For DC applications, the rating drops to 20 A at 440 V with two poles in series per phase (DC-23A and DC-23B). The rated operational power spans 15 kW at 400 V AC-23A/B up to 25 kW at 690 V AC-23A/B. The conventional free-air thermal current Ith is 32 A at 40 °C ambient, so the thermal path through the body and terminals is sized for continuous current at that level without exceeding the temperature rise limits of the housing. ## Fault coordination with BS fuses The short-circuit withstand rating is 80 kA at 400 V when protected by BS fuses, and the rated short-circuit making capacity Icm is 32 kA with the associated fuse rating. This means the disconnector body can survive a fault current up to 80 kA without rupturing, provided the upstream BS fuse clears the fault within its let-through energy limit. The fuse size is A1, BS type. In a panel build, the coordination study must confirm that the selected BS fuse's I²t curve falls below the disconnector's withstand curve at the available fault current — otherwise the body may sustain damage before the fuse opens. The rated insulation voltage Ui is 750 V AC, and the rated impulse withstand voltage Uimp is 8 kV. These figures define the clearance and creepage distances inside the body — adequate for 400 V line-to-line systems with a 8 kV impulse category, which covers most industrial distribution panels fed from a 400 V transformer secondary. ## Mounting, wiring, and environmental limits Mounting is plate or rail (DIN) — the body accepts either a backplate screw-down or a snap-on DIN rail footprint. The external operating handle can be mounted on the right side or frontally. Power-circuit terminals accept flexible cable from 6 to 25 mm² (0.009 to 0.04 in²) with screw terminals torqued to 3.2 N·m (28.3 lbf·in). The control-circuit terminals share the same torque spec. The ambient operating range is -20 to 70 °C, and the body carries IP20 protection with the terminal cover fitted. The housing material is rated for fire resistance at 960 °C per IEC 60695-2-1. The protective treatment is TH — tropicalized for humidity and fungus resistance. These specs suit the body for installation inside a panel with a minimum IP54 enclosure, not for direct washdown exposure. ## Durability and lifecycle Mechanical durability is rated at 10,000 cycles; electrical durability is 1,500 cycles under AC-23A or AC-23B, and 300 cycles under DC-23A or DC-23B. For a line-down spare, the AC-23A figure is the relevant one for normal motor switching — 1,500 cycles at full rated current is typical for a disconnector that sees occasional operation, not daily jogging. If the application requires frequent switching, a contactor ahead of the disconnector extends the service interval.","metaTitle":"Schneider Electric GS1DB4 TeSys GS Fuse Switch Disconnector","metaDescription":"Active-production fuse switch disconnector body, 32 A rated operational current at 400 V AC-23B, 80 kA short-circuit withstand with BS fuses.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"4.4 in (112 mm)","Width":"3.8 in (96 mm)","title":"GS1DB4","Height":"3.9 in (98 mm)","Category":"18402-WORLD SERVICE PARTS(CONTROL ACCESS)","Fuse size":"A1","Fuse type":"BS","Standards":"IEC 60947-3 IEC 60269-1 IEC 60269-2","description":"switch-disconnector fuse body GS1 4 poles - BS - 32 A","Network type":"DC AC","Product Weight":"1.19 lb(US) (0.54 kg)","Fire resistance":"1760 °F (960 °C) body IEC 60695-2-1","Making capacity":"320 A 400 V AC-23B","lifecycle_stage":"current","Mounting Support":"Plate Rail","Range of Product":"TeSys GS","Breaking capacity":"256 A 400 V AC-23B)","Device short name":"GS1D","Network Frequency":"50/60 Hz","Poles description":"3P + Nc","Tightening torque":"Control circuit 28.3 lbf.in (3.2 N.m) screw terminals","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: screw terminals 0.009...0.04 in² (6...25 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":"15 kW 400 V AC-23A) 15 kW 400 V AC-23B) 25 kW 690 V AC-23A) 25 kW 690 V AC-23B) 18.5 kW 500 V AC-23A) 18.5 kW 500 V AC-23B)","[Ui] rated insulation voltage":"750 V AC 50/60 Hz","[Ie] rated operational current":"20 A 440 V 2 poles in series per phase DC-23A 20 A 440 V 2 poles in series per phase DC-23B 32 A 400 V AC-23A 32 A 400 V AC-23B 32 A 500 V AC-23A 32 A 500 V AC-23B 32 A 690 V AC-23A 32 A 690 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":"32 kA rating of associated fuses 80 kA 400 V with protection by BS fuses","[Ith] conventional free air thermal current":"32 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/GS1DB4/switchdisconnector-fuse-body-gs1-4-poles-bs-32-a/"},"ai":{"faq":[{"question":"What is the GS1DB4 rated for at 400 V AC-23B?","answer":"At 400 V AC-23B, the GS1DB4 is rated for 32 A operational current, 320 A making capacity, and 256 A breaking capacity. The rated operational power at that duty is 15 kW."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/GS1DB4","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/GS1DB4 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}}