Switchgear Components ...

     engineering power system component solutions ...

  IRG Power Systems
1805 Beltway
St. Louis, Missouri 63114  U.S.A.
Tel: (314) 726-5990
Fax: (314) 726-5850


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Our Products

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IRG Power Systems  



In addition to OEM Components for switchgear, IRG also supplies a complete line of insulating spare parts and insulation raw materials for both switchgear OEM's and repair companies.

Insulating Components

Phase Barriers Arc Chutes Fuse Boards
Terminal Board Insulating Angles Insulating Channels
Insulating Supports Stand-off Insulators Molded Stand-offs
Ceramic Stand-offs Insulating Nuts Insulating Washers
Insulating Bolts Bus Bar Supports Heat Shrink Insulation
Cable & Lead Clamps Fuse Body Insulation Insulating Parts

If you know the part required, please complete a quote request form for a complete quotation.   Typically, a drawing will be required for custom insulating components.   If you do not have a drawing, we can send you a sample drawing for you to complete or you can send us samples to duplicate.

Insulating Materials
Rigid Laminates

  • Glass Polyester Laminate, NEMA Grades GPO-1, GPO-2, & GPO-3
  • High Temperature Glass Polyester HST-II & SG-200
  • Canvas Phenolic NEMA Grades C & CE
  • Paper Phenolic Low Power Factor Laminate
  • Arboron Paper Phenolic Laminate
  • Glass Silicone NEMA Grade G-7
  • Glass Melamine NEMA Grades G-5 and G-9
  • Glass Epoxy NEMA Grades G-10, FR4, and G-11
  • Glass Polyimide Grade G-30
  • Vulcanized Fibre Materials
  • Durex Hardboard
  • Kraft Pressboard Materials
  • Nomex Pressboard Materials

Flexible Laminates

  • Nomex 410 Aramid Paper
  • Epoxy Coated Nomex Aramid Paper
  • Epoxy Coated Fibreglass - Acme 517
  • Mylar & Melinex Polyester Film
  • Dacron / Mylar / Dacron
  • Nomex / Mylar / Nomex
  • Copaco 100% Rag Paper
  • Rag / Mylar & Rag / Mylar / Rag
  • Vulcanized Fibre Materials
  • Kapton Film
  • Insulating Tapes - 3M, tesa, Permacel




Substation Switchgear
From high voltage circuit breaker components...

Metal Clad Switchgear Components
... medium voltage metal clad switchgear parts...

Circuit Breaker Components
...including arc chutes, phase barriers, and fuse supports..

Custom Machined Insulation Components
... including glass polyester fuse support boards and high temperature non-asbestos arc chutes.