Junction Boxes for Hazardous Areas
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EJB Junction Boxes
Cl. I, Div. 1 and 2, Groups B, C, D; Cl. II, Div. 1, Groups E, F, G; Cl. II, Div. 2, Groups F, G; Cl. III.
NEMA 3, 4, 4X*, 7, 9.
EJB junction boxes are used in threaded rigid conduit systems in hazardous areas:
• As a junction or pull box.
• To provide enclosures for splices and branch circuit taps.
• For housing terminal blocks, relays and other electrical devices.
• Indoors or outdoors in damp, wet, dusty, corrosive, hazardous locations.
• Where exposure to frequent or heavy rain, water, spray, moisture, and humidity is common, such as: offshore drilling facilities, cooling towers, coal preparation and handling facilities and sewage and waste water treatment plant.
• In areas which are hazardous due to the presence of hydrogen or gases and vapors of equivalent hazard such as found in process industries, missile bases and gas manufacturing plants.
GUB Instrument Housings
Cl. I, Div. 1 & 2, Group D; Cl. II, Div. 1, Groups E, F, G; Cl. II, Div. 2, Groups F, G; Class III; NEMA 3, 7D, 9EFG, 12.
GUB instrument housings are used:
• To enclose ammeters, voltmeters, wattmeters, varmeters, power-factor meters, tachometer indicators, pressure controls, temperature control etc., in a threaded rigid metallic conduit system
• In specific hazardous atmospheres such as encountered in oil refineries, chemical plants, paint and varnish manufacturing plants, certain hazardous metal finishing areas, coal processing locations, granaries and grain processing plants.
Features:
• Threaded covers have glass windows for viewing scale, dial or setting of enclosed instrument.
• Mounting plates, brackets or pillars for mounting a wide variety of instruments not shown on the next page are available on special order. Instrument to be used must be specified by make, complete identification data and dimensions.
GUE, GUB Junction Boxes
Cl. I, Div. 1 & 2, Groups B, C, D; Cl. II, Div. 1, Groups E, F, G; Cl. II, Div. 2, Groups F, G; Cl. III.
NEMA 4*, 7BCD, 9EFG.
GUE series junction boxes are used in threaded rigid conduit systems in hazardous areas to function as a splice box, pull box or equipment and device enclosure, to house wiring.
Features:
• Threaded construction throughout permits use in hazardous areas.
• Bodies have thick walls so they can be factory or field drilled and tapped to meet NEC/CEC requirements for Class I hazardous areas.
• Covers are provided with a neoprene “O” ring gasket to meet NEMA/EEMAC 4 requirements for a watertight seal.
• Internal grounding lug provides a means to ground enclosed equipment.
• Boxes are machined for field installed mounting plates.
EGJ Junction Boxes:
Cl. I, Div. 1 and 2, Groups D; Cl. II, Div. 1, Groups E, F, G; Cl. II, Div. 2, Groups F, G; Cl. III
Applications: The EGJ series junction boxes are designed for flush installation in the concrete pump island of gasoline service stations
Features:
• Cover sealed with “O” ring gasket to make unit raintight
• Cover recess will accept tool used to open cover of gasoline storage tank
• Two drilled and tapped conduit entrances on the bottom and six on the sides
• Plugs are provided for the two bottom entrances and four of the side entrances for choice of conduit arrangement
• ES sealing hubs thread into the bottom to seal the mainfeed
• Caulking compound supplied for filling space between cover flange and body rim to prevent accumulation of water, dirt and ice. Compound remains pliable and is easily removed