Sealed explosion-proof motors are encased in sturdy, heavy-duty enclosures made from cast iron or aluminum materials. These enclosures are constructed to withstand pressure and contain any explosions within the motor.
On explosion-proof motors, all electrical connections and openings are securely packed to prevent the entry of hazardous substances and to contain any internal sparks or flames.
These motors frequently include thermal protection features to prevent overheating, a standard ignition source in hazardous environments.
Explosion-proof motors use non-sparking materials for components like brushes and commutators to reduce the risk of sparking.
The wiring within these motors is specially designed to prevent sparking, typically using explosion-proof conduit and connectors.