120/240/480/600V AC Hazardous-Location Mechanical Interlocks

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Product Categories
Electrical
Electrical Connectors & Wiring Devices
Plugs, Receptacles & Wiring Devices
Mechanical Interlocks
Hazardous-Location Mechanical Interlocks
120/240/480/600V AC Hazardous-Location Mechanical Interlocks

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Hazardous Location Specification

Class I, Div 1 and 2, Group B, C, D are for hazardous locations where combustible dust is present during normal operations, normally confined, or not present in ignitable concentrations. Class I hazards are commonly found in petroleum refineries, fuel dispensaries, sewage treatment plants, and processes using chemicals, paints, coatings, or sealants. This rating indicates the electrical device is suitable for use with the following hazardous materials: Group B (hydrogen, butadiene, ethylene oxide, propylene oxide, and acrolein), Group C (ethylene, cyclopropane, and ethyl ether), Group D (acetone, ammonia, benzene, butane, ethanol, gasoline, hexane, methane, methanol, naphtha, natural gas, propane, and toluene).
Class I, Div 1 and 2, Group C, D are for hazardous locations where combustible dust is present during normal operations, normally confined, or not present in ignitable concentrations. Class I hazards are commonly found in petroleum refineries, fuel dispensaries, sewage treatment plants, and processes using chemicals, paints, coatings, or sealants. This rating indicates the electrical device is suitable for use with the following hazardous materials: Group C (ethylene, cyclopropane, and ethyl ether), and Group D (acetone, ammonia, benzene, butane, ethanol, gasoline, hexane, methane, methanol, naphtha, natural gas, propane, and toluene).
Class II, Div 1 and 2, Group F, G are for hazardous locations where combustible dust is present during normal operations, normally confined, or not present in ignitable concentrations. Class II hazards are commonly found in pharmaceutical factories, coal-handling plants, grain elevators, and plants processing flour, feed, or powder. This rating indicates the electrical device is suitable for use with the following hazardous materials: Group F combustible dust (carbon black, charcoal, coal, and coke dust) and Group G combustible dust (chemicals, flour, grain, plastic, and wood).
Class III, Div 1 and 2 are for hazardous locations where ignitable fibers or flyings are present during normal operations, normally confined, or not present in ignitable concentrations. Class III hazards are commonly found in textile mills, lumber mills, and other plants with airborne fibers or sawdust.

Class I, Div 1 and 2, Group B, C, D
Class II, Div 1 and 2, Group F, G
Class III, Div 1 and 2

Voltage Rating

480V AC
600V AC
120/240/480/600V AC
240/480/600V AC
600V AC/250V DC

NEMA Enclosure Rating

3 is a safety rating for indoor and outdoor electrical enclosures that specifies a degree of protection against incidental contact, against the entry of solid objects (falling dirt, windblown dust) or water (rain, snow), and against exterior ice formation.
3R is a safety rating for indoor and outdoor electrical enclosures – often called rain-tight or rain-proof – that specifies a degree of protection against incidental contact, against the entry of solid objects (falling dirt) or water (rain, snow), and against exterior ice formation.
4 is a safety rating for indoor and outdoor electrical enclosures with gasketed doors that specifies a degree of protection against incidental contact, against the entry of solid objects (falling dirt, windblown dust) or water (rain, snow, water splashes and sprays), against occasional washdowns, and against exterior ice formation.
4X is a safety rating for indoor and outdoor electrical enclosures–also known as washdown enclosures–that specifies a degree of protection against incidental contact, against the entry of solid objects (windblown dust) or water (rain, snow, water splashes and sprays), against corrosion, and against exterior ice formation.
7BCD is a safety rating for indoor electrical enclosures that are constructed to keep internal explosions contained when used in Class I, Division 1, Groups B, C, or D hazardous locations as specified by the National Electrical Code (NFPA 70).
7CD is a safety rating for indoor electrical enclosures that are constructed to keep internal explosions contained when used in Class I, Division 1, Groups C or D hazardous locations as specified by the National Electrical Code (NFPA 70).
9FG is a safety rating for indoor electrical enclosures that are constructed to prevent the ignition of combustible dust when used in Class II, Division 1, Groups F or G hazardous locations as specified by the National Electrical Code (NFPA 70).

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Hazardous-Location Mechanical Interlocks

Available1 product

Hazardous-location mechanical interlocks provide electrical connections in environments where the possibility of flammable gases, vapors, or liquids, ignitable fibers or flyings, or combustible dust may exist under normal and abnormal conditions. They have location ratings that classify their suitable environment for operation and must be mated with compatible hazardous-location devices to be compliant.

Voltage Rating

Non-Fused Mechanical Interlocks

These non-fused mechanical interlocks transfer power in hazardous-location environments, including paint and spray shops, welding and fabrication facilities, gas dispensing areas, and furnaces. They don't provide protection against electrical overloads or shorts.

30 A Current Rating

Non-Fused Mechanical Interlocks 30 A Current Rating, sorted by Number of Poles & Wires, ascending


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60 A Current Rating

Non-Fused Mechanical Interlocks 60 A Current Rating, sorted by Number of Poles & Wires, ascending


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100 A Current Rating

Non-Fused Mechanical Interlocks 100 A Current Rating, sorted by Number of Poles & Wires, ascending


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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.

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Non-Fused Mechanical Interlocks

30 A Current Rating

60 A Current Rating

100 A Current Rating