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HUBBELL KILLARK

Hubbell Killark is a manufacturer of electrical equipment designed for hazardous (classified) locations, where the presence of flammable gases, vapors, or combustible dusts requires enclosures and fittings that prevent ignition. The brand originated as Killark Electric Manufacturing Company, founded in 1913 in St. Louis, Missouri, and became part of Hubbell Incorporated in 1965. Today, Hubbell Killark products are used in oil and gas, chemical processing, mining, grain handling, and other industries where ordinary electrical components would pose a risk. The product line includes conduit bodies, outlet bodies, reducing bushings, covers, enclosures, control stations, and wall packs, all engineered to meet applicable standards such as UL 1203, CSA C22.2 No. 30, and ATEX/IECEx for global installations. 3G Electric supplies 677 SKUs from Hubbell Killark, covering fittings, conduit accessories, and enclosures. Representative items include the RE31S steel reducing bushing (1 in to 1/2 in trade size), the OL-60 steel cover for O Series conduit access fittings (2 in trade size, screw-in connection, includes screws, no gasket), the OLB-1CG powder-coated aluminum LB 90° elbow (1/2 in trade size, 4 cu in capacity, threaded for rigid metal conduit), the XS-1C replacement front cover with integrated 1-pole 20A tumbler switch, and GR series enclosures with blank covers in sizes from 4 in x 4 in x 4 in (GRSS-1M) to 12 in x 12 in x 8 in (GRH). These products are specified by plant engineers and maintenance managers for new construction, expansions, and MRO replacements. Technical buyers select Hubbell Killark components based on trade size, material (steel, aluminum, iron), closure method (screws, hinges), and area classification. 3G Electric supports the line by stocking a broad range of SKUs, providing spec sheets and manufacturer part numbers for cross-referencing, and shipping globally to industrial sites. For procurement specialists, 3G Electric offers quote-based ordering and can source additional Hubbell Killark items not listed in the online catalog. The product data includes UNSPSC codes, material and dimensional specifications, and series designations to facilitate integration into plant standards and ERP systems.

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About HUBBELL KILLARK

Hubbell Killark is a manufacturer of electrical equipment designed for hazardous (classified) locations, where the presence of flammable gases, vapors, or combustible dusts requires enclosures and fittings that prevent ignition. The brand originated as Killark Electric Manufacturing Company, founded in 1913 in St. Louis, Missouri, and became part of Hubbell Incorporated in 1965. Today, Hubbell Killark products are used in oil and gas, chemical processing, mining, grain handling, and other industries where ordinary electrical components would pose a risk. The product line includes conduit bodies, outlet bodies, reducing bushings, covers, enclosures, control stations, and wall packs, all engineered to meet applicable standards such as UL 1203, CSA C22.2 No. 30, and ATEX/IECEx for global installations. 3G Electric supplies 677 SKUs from Hubbell Killark, covering fittings, conduit accessories, and enclosures. Representative items include the RE31S steel reducing bushing (1 in to 1/2 in trade size), the OL-60 steel cover for O Series conduit access fittings (2 in trade size, screw-in connection, includes screws, no gasket), the OLB-1CG powder-coated aluminum LB 90° elbow (1/2 in trade size, 4 cu in capacity, threaded for rigid metal conduit), the XS-1C replacement front cover with integrated 1-pole 20A tumbler switch, and GR series enclosures with blank covers in sizes from 4 in x 4 in x 4 in (GRSS-1M) to 12 in x 12 in x 8 in (GRH). These products are specified by plant engineers and maintenance managers for new construction, expansions, and MRO replacements. Technical buyers select Hubbell Killark components based on trade size, material (steel, aluminum, iron), closure method (screws, hinges), and area classification. 3G Electric supports the line by stocking a broad range of SKUs, providing spec sheets and manufacturer part numbers for cross-referencing, and shipping globally to industrial sites. For procurement specialists, 3G Electric offers quote-based ordering and can source additional Hubbell Killark items not listed in the online catalog. The product data includes UNSPSC codes, material and dimensional specifications, and series designations to facilitate integration into plant standards and ERP systems.

Common Applications

  • Oil and gas processing — Hubbell Killark GR series enclosures with blank covers for housing electrical terminations in classified areas.
  • Chemical manufacturing — OLB-1CG aluminum LB conduit bodies for rigid metal conduit runs in corrosive and hazardous environments.
  • Grain handling facilities — RE31S steel reducing bushings to transition conduit sizes in dust-ignition-proof installations.
  • Pharmaceutical production — XS-1C switch covers with integrated 20A tumbler switches for local control in hazardous locations.
  • Mining operations — OL-60 steel covers for O Series conduit access fittings to maintain enclosure integrity in underground areas.
  • Wastewater treatment — GRSS-1M 4x4x4 enclosures with blank covers for splicing and terminating conductors in classified zones.

Frequently asked questions

Common questions about HUBBELL KILLARK from 3G Electric.

What are the key specifications for Hubbell Killark GR series enclosures with blank covers?

Hubbell Killark GR series enclosures are available in multiple sizes, including 4 in x 4 in x 4 in (GRSS-1M), 6 in x 8 in x 7 in (GRM), 10 in x 10 in x 8 in (GRL), and 12 in x 12 in x 8 in (GRH). They feature a blank cover secured by screws and are designed for hazardous locations where flammable gases, vapors, or dusts may be present. The enclosures are made of materials suitable for the environment, such as aluminum or iron, and are intended to house electrical components, splices, or terminations. When specifying, confirm the area classification, material, and closure method required for your installation.

What is the Hubbell Killark OLB-1CG conduit body used for?

The Hubbell Killark OLB-1CG is an LB-style 90° elbow conduit outlet body with a 1/2 in trade size and 4 cu in body capacity. It is made of powder-coated aluminum and has threaded connections for use with rigid metal conduit (RMC). This conduit body is used in hazardous locations to provide access to conductors for pulling, splicing, or maintenance, while maintaining the integrity of the conduit system. It is part of the O Series and is rated for environments where explosive atmospheres may exist. Verify compatibility with your conduit type and area classification.

Does the Hubbell Killark XS-1C switch cover include the switch?

Yes, the Hubbell Killark XS-1C is a replacement front cover with an integrated 1-pole, 20A tumbler switch. It is part of the XS series and is used in industrial environments to provide local control of electrical circuits. The cover includes the switch operator and is marked with an On/Off legend. It is designed for hazardous location applications where a tumbler switch is required. When ordering, confirm the voltage and current ratings match your application, and ensure the enclosure it mounts to is suitable for the area classification.

What materials are Hubbell Killark reducing bushings available in?

Hubbell Killark reducing bushings, such as the RE31S, are made of steel. The RE31S transitions from 1 in to 1/2 in trade size conduit and is designed for hazardous locations. These bushings provide a secure connection between different conduit sizes and are used in conduit systems where a reduction is needed. Steel construction offers mechanical strength and durability. For specific material and dimensional data, refer to the manufacturer part number and specification sheet. 3G Electric stocks a range of Hubbell Killark reducing bushings to support various trade size combinations.

Are Hubbell Killark conduit body covers sold separately?

Yes, Hubbell Killark offers covers for conduit access fittings as separate items. For example, the OL-60 is a steel cover for O Series conduit access fittings with a 2 in trade size and screw-in connection. It includes screws but no gasket. These covers are used to close conduit bodies after conductors are installed, maintaining the hazardous location rating. When replacing a cover, ensure the series and trade size match the conduit body. 3G Electric supplies a variety of Hubbell Killark covers to meet replacement and maintenance needs.

What standards do Hubbell Killark hazardous location products meet?

Hubbell Killark products are designed to meet applicable standards for hazardous locations, which may include UL 1203, CSA C22.2 No. 30, and ATEX/IECEx for global applications. Specific compliance depends on the product family and model. For example, the OL-60 cover meets CSA LR11852. When specifying, always verify the exact certification markings on the product or in the manufacturer's literature to ensure compliance with your local codes and area classification. 3G Electric can provide available documentation for the products we supply.