Industrial control panels
(ICPs) for hazardous environments are a specialty of Wastech
Controls & Engineering Inc. Our experienced engineers will offer you
safe and economical solutions for control panels to be used with hazardous locations,
including panels with intrinsically safe circuits.
NEMA 7 explosion-proof enclosure.
Explosion Proof Panels
may be installed in Class I, II or III, Division 1 Hazardous Locations according to appropriate National Electrical Code (NEC)
installation practices. These control panels can consist of a NEMA 7
explosion proof enclosure or a general purpose enclosure with purging /
Industrial Control Panels with intrinsically safe
circuits may be connected to intrinsically safe components (such as
pumps, sensors, alarm indicators, mixers, etc.), but the panels MUST NOT
be installed in a hazardous location. These panels provide low energy
power and signals through special intrinsically safe barriers into the
hazardous area. Wiring must be routed in separate raceways and
segregated from all power and other circuits. If the wiring is not
designed correctly, a fire or explosion could occur. Special fittings
are installed in the panel that either prevent the passage of hot gases
in the event of an explosion, or the passage of hazardous gases, dust or
fibers that could be ignited by the electrical circuits in the panel.
These panels may be UL listed under the UL913 category.
The National Electric
Code (NEC) explains in detail the requirements for installation of
wiring and electrical equipment in hazardous locations. A
qualified electrician should install all electrical systems. The
appropriate NEC articles along with local and insurance regulations
should be consulted by the user.