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JST Power Equipment

J20X Cubicle-Type Gas-Insulated Switchgear

The JST Power Equipment J20X C-GIS is a 5 to 69 kV cubicle-type gas-insulated switchgear for primary distribution substations, utilities and heavy industry, sold and supported in Texas and Oklahoma and on data center projects nationwide by Ryan Sales.

  • 5 kV 600 A 40 kA
  • 38 kV 2500 A 31.5 kA BIL 200 kV
  • 69 kV 1200 A 31.5 kA BIL 325 kV
  • SF6 + air insulation
  • fully arc resistant
Overview

The J20X C-GIS is a robust, industrially optimized switchgear line using SF6 gas and air insulation for primary distribution. It spans 5 kV/600 A/40 kA, 38 kV/2500 A/31.5 kA, and 69 kV/1200 A/31.5 kA ratings with BIL up to 325 kV. The fully arc-resistant, cubicle-type construction offers customizable enclosure options and up to 75% footprint savings over air-insulated designs. UL listed to ANSI/IEEE/NEMA standards.

Specifications
Voltage class5 / 38 / 69 kV
Continuous current600 / 2500 / 1200 A
Short-time withstand40 / 31.5 / 31.5 kA
BIL200 (38 kV) / 325 (69 kV)
InsulationSF6 + air
ConfigurationCubicle-type, fully arc resistant
Footprint reductionUp to 75% vs. air-insulated designs
Internal arc classificationIEC & IEEE IAC
CertificationsUL listed
StandardsANSI / IEEE / NEMA

Ratings from manufacturer data. Confirm your configuration with a rep.

Applications
  • Primary distribution substations
  • Utilities
  • Heavy industry
  • Data centers
Spec sheets & documents
Frequently asked questions
Who sells the JST Power Equipment J20X Cubicle-Type Gas-Insulated Switchgear in Texas?

Ryan Sales, a manufacturers' representative based in Magnolia, Texas, sells the JST Power Equipment J20X Cubicle-Type Gas-Insulated Switchgear and supports customers across Texas and Oklahoma and on data center projects nationwide through regional reps. Call (281) 363-1106 or request a quote on this page.

What ratings does the JST J20X cubicle-type GIS offer?

The J20X comes in three ratings: 5 kV/600 A/40 kA, 38 kV/2500 A/31.5 kA with 200 kV BIL, and 69 kV/1200 A/31.5 kA with 325 kV BIL. It is UL listed to ANSI, IEEE and NEMA standards with IEC and IEEE internal arc classification.

How does the JST J20X C-GIS differ from the J10X ring main unit?

The J20X is fully arc-resistant, cubicle-type switchgear for primary distribution up to 69 kV and 2500 A, using SF6 gas and air insulation with customizable enclosures. The J10X is a compact sealed SF6 ring main unit for looped distribution at 15, 27 and 38 kV and up to 1200 A.

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