Control Craft has the expertise and experience to design explosion-proof panels and enclosures, including pressurized & purged systems (types X, Y & Z) and other intrinsically safe systems. For over a decade, we have built products that strictly comply with the NEC Explosion Proof standards.
Summary of NEC Explosion Proof Rating System
Class 1 environments have concentrations of flammable gas or vapor that are high enough to be explosive.
Class 2 environments have concentrations of dust that could be considered explosive.
Division 1 environments have hazardous gas or vapor in the air during normal operation.
Division 2 environments only have hazardous gas or vapor in the air in the event of a rupture, failure, or malfunction.
Group A environments contain acetylene.
Group B environments contain hydrogen or gases of equivalent hazard.
Group C environments contain ethylene, ethyl ether or gases of equivalent hazard.
Group D environments contain acetone, alcohol, ammonia, benzene, benzol, butane, gasoline, hexane, lacquer solvent vapors, naphtha, natural gas, propane, or gases of equivalent hazard.
Group E environments contain explosive metallic dust, electrically conductive dust, or dust with a resistivity of less than 100kÙ-cm.
Group F environments contain explosive carbon black/charcoal dust or dust with a resistivity between 100Ù-cm and 100kÙ-cm.
Group G environments contain explosive dust with resistivity greater than 100kÙ-cm and electrically non-conductive dust.
Source: National Electric Code
Custom Explosion Proof Control Panel Specifications
|Automatic Wire Cutting Machine
Wire Number Printer
|Class 1, Division 1, Group B,C,D
Class 1, Division 2, Group A,B,C,D
Class 2, Division 1, Group E,F,G
Class 2, Division 2, Group E,F,G