--- title: "Gas-Insulated Switchgear (GIS) — Eco-Gas / SF6-Free | Entogo" description: "Compact gas-insulated switchgear (GIS) using vacuum interrupters and an eco-friendly (SF6-free) insulating gas at near-zero gauge pressure — for space-…" url: https://entogo.ca/products/gas-insulated-switchgear/ lang: en type: website image: https://entogo.ca/_astro/Entogo-Environmentally-Friendly-Gas-Insulated-Metal-Enclosed-Switchgear.PhgGUu4v.png alternates: en: https://entogo.ca/products/gas-insulated-switchgear/ fr-CA: https://entogo.ca/fr/products/gas-insulated-switchgear/ es: https://entogo.ca/es/products/gas-insulated-switchgear/ ar: https://entogo.ca/ar/products/gas-insulated-switchgear/ site: https://entogo.ca/ llms: https://entogo.ca/llms.txt --- Home › Products › Switchgear & Distribution › Gas-Insulated Switchgear (GIS) — Eco-Gas / SF6-Free Switchgear & Distribution # Gas-Insulated Switchgear (GIS) — Eco-Gas / SF6-Free up to 38 kV class · vacuum + eco-gas ![Entogo eco-gas SF6-free gas-insulated medium-voltage switchgear (GIS)](https://entogo.ca/_astro/Entogo-Environmentally-Friendly-Gas-Insulated-Metal-Enclosed-Switchgear.PhgGUu4v_6iOav.webp) Overview Compact gas-insulated switchgear (GIS) using vacuum interrupters and an eco-friendly (SF6-free) insulating gas at near-zero gauge pressure — for space- constrained 15 / 27 / 38 kV class medium-voltage distribution, 60 Hz, with built-in online monitoring and SCADA. Designed to IEEE C37.20.9; UL / CSA certifiable. Entogo designs and builds the Gas-Insulated Switchgear (GIS) — Eco-Gas / SF6-Free in its own factory with a vertically integrated supply chain: this product ships in 16–24 weeks (new UL or CSA certification can extend that, within a guaranteed 36-week worst case), and every Entogo product carries a minimum 36-month manufacturer warranty. This **gas-insulated switchgear (GIS)** extinguishes the arc with vacuum interrupters and insulates with an eco-friendly, SF6-free gas held at near-zero gauge pressure — combining the compact footprint of gas insulation with a low-global-warming medium. It serves space-constrained **15 / 27 / 38 kV class** medium-voltage distribution at 60 Hz, sealed against moisture, dust and salt for urban, coastal and indoor sites. Built-in gas, arc and condition monitoring with SCADA / IEC 61850 integration lets operators manage the network remotely, and an arc-resistant rating per **IEEE C37.20.7** is available for data centers, transit and other mission-critical facilities. Designed and built to **IEEE C37.20.9** (gas-insulated switchgear, 1–52 kV), with UL / CSA certification available on request. ## Key features - Vacuum interruption with an eco-friendly, SF6-free insulating gas at near-zero gauge pressure for low-global-warming, safe operation. - Designed and built to IEEE C37.20.9 (gas-insulated switchgear, 1–52 kV), 60 Hz — UL / CSA certification available on request. - Compact footprint for space-constrained substations, urban and coastal sites. - Built-in online monitoring and analytics with SCADA / IEC 61850 integration for remote management. - 15 / 27 / 38 kV class, 1250 – 4000 A; optional arc-resistant rating per IEEE C37.20.7. Custom-engineered · built to order [Get a quote](https://entogo.ca/contact/) Lead time 16–24 weeks Order now for estimated delivery Jan 2027 – Mar 2027. Certification / testing may extend this per the standard and scope. Quality & certifications - ![UL safety certification mark](https://entogo.ca/_astro/Entogo-UL-Underwriters-Laboratories-North-America-Safety-Certification.BoQ45DeX_248O3C.webp) - ![CSA certification mark](https://entogo.ca/_astro/Entogo-CSA-Canadian-Standards-Association-Safety-Certification.CY1FySDR_Z11vFCD.webp) - ![CE European Conformity marking](https://entogo.ca/_astro/Entogo-CE-European-Conformity-Marking.xJPMJKcl_1wU1NT.webp) - ![ISO 9001 quality management mark](https://entogo.ca/_astro/Entogo-ISO-9001-Quality-Management-System-Certification.DbscJvvM_47kvy.webp) - ![ISO 14001 environmental management mark](https://entogo.ca/_astro/Entogo-ISO-14001-Environmental-Management-System-Certification.DXOTPjd4_Z4rpDm.webp) - ![IEC CB Scheme mark](https://entogo.ca/_astro/Entogo-CB-Scheme-IEC-International-Electrical-Certification.CPXJ4xZK_aV0YT.webp) Built under audited ISO quality systems and to ANSI/IEEE & IEC standards. Product-level UL (cULus) / CSA certification available on request. [See all certifications](https://entogo.ca/certifications/) ## Specifications Gas-Insulated Switchgear (GIS) — Eco-Gas / SF6-Free specifications | Specification | Value | | --- | --- | | Applicable standards | IEEE C37.20.9 (1–52 kV GIS) · IEC 62271-200 · IEEE C37.20.7 (arc-resistant) | | Type | Gas-insulated, metal-enclosed switchgear (GIS) | | Interruption | Vacuum interrupter | | Insulating medium | Eco-friendly / SF6-free gas, ≤ 0.02 MPa (near-zero gauge) | | Rated max voltage | 15 / 27 / 38 kV class (to 52 kV) | | Continuous current | 1250 – 4000 A | | Frequency | 60 Hz | | Monitoring | Built-in gas / arc / condition monitoring, SCADA-ready | | Enclosure | Compact metal-enclosed, indoor; NEMA 3R outdoor option | Glossary: [Gas-insulated switchgear](https://entogo.ca/glossary/#gas-insulated-switchgear) [60 Hz vs. 50 Hz](https://entogo.ca/glossary/#60-hz-vs-50-hz) [Metal-enclosed](https://entogo.ca/glossary/#metal-enclosed-switchgear) ## Applications - Space-constrained urban and indoor substations - Data centers and mission-critical facilities - Coastal and harsh-environment installations - Transit, institutional and commercial medium-voltage distribution Payment & financing Flexible payment and project financing is available for qualified projects — milestone-based plans, reduced upfront terms and third-party financing. Entogo is the equipment supplier, not a lender; all options are subject to credit review and a signed agreement. [See payment options](https://entogo.ca/payment-options/) After-sales Backed by Entogo lifecycle service — technical support, spare parts and a minimum 36-month warranty (well beyond the industry norm; up to 10 years on major power equipment, confirmed per contract). Our team responds to every request within one business day. [After-sales support](https://entogo.ca/support/) [Track an order](https://entogo.ca/support/order-status/) FAQ ## Common questions - **Is this switchgear SF6-free?**: Yes. It interrupts with vacuum bottles and insulates with an eco-friendly, SF6-free gas at near-zero gauge pressure — avoiding the high global-warming-potential of SF6 while keeping the compact footprint of gas-insulated switchgear. - **Which North-American standard governs GIS?**: IEEE C37.20.9-2019 covers metal-enclosed switchgear rated 1 kV to 52 kV incorporating gas-insulating systems — the NA adoption for GIS. This unit is designed to it; UL / CSA certification is available on request. - **Why choose GIS over air-insulated switchgear?**: GIS is much more compact and is sealed against moisture, dust and salt, so it suits space-constrained urban substations, data centers and coastal or harsh-environment sites, 60 Hz, 15 / 27 / 38 kV class. Distribution ## Related products [![Entogo metal-clad medium-voltage switchgear with drawout vacuum circuit breakers](https://entogo.ca/_astro/Entogo-Armored-Removable-AC-Metal-Enclosed-Switchgear.DuhYnxGM_1rPQtT.webp) Distribution ### Metal-Clad Switchgear (Drawout MV) Metal-clad medium-voltage switchgear with drawout vacuum circuit breakers for 5/15/27/38 kV class systems, 60 Hz — compartmentalized, insulated-bus construction up to 4000 A and 50 kA, with optional arc-resistant rating. Designed to ANSI/IEEE C37.20.2; UL/CSA certifiable. View](https://entogo.ca/products/metal-clad-switchgear/)[![Entogo dead-front low-voltage switchboard, UL 891 type](https://entogo.ca/_astro/Entogo-GGD-AC-Low-Voltage-Switchgear.zdOCIT9Q_6cFiL.webp) Distribution ### Low-Voltage Switchboard (UL 891) A dead-front low-voltage switchboard for ≤ 600 V, 60 Hz service-entrance and distribution — up to 6000 A and 200 kA, with group-mounted molded-case or insulated-case breakers, for commercial, institutional and industrial buildings. Designed to UL 891; UL (cULus) / CSA certifiable. View](https://entogo.ca/products/low-voltage-switchboard/)[![Entogo pad-mounted ring main unit load-break switchgear, dead-front](https://entogo.ca/_astro/Entogo-Gas-Fully-Insulated-Fully-Sealed-Ring-Main-Unit.BUgYaOBQ_1CzHVw.webp) Distribution ### Pad-Mounted Switchgear (Ring Main Unit) Pad-mounted load-break switchgear (ring main unit) for underground medium-voltage distribution — 15/25/38 kV class, 200/600 A, dead-front, with SF6 or SF6-free fault-interrupting ways for utility loops, campuses and data centers, 60 Hz. Designed to IEC 62271-200 and ANSI C57.12.28; UL/CSA certifiable. View](https://entogo.ca/products/pad-mounted-switchgear-rmu/) Request a quote ## Talk to engineering about the Gas-Insulated Switchgear (GIS) — Eco-Gas / SF6-Free. 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