Is a Class 1 Div 2 motor explosion proof?
While Division 1 motors in Class I locations must be explosion-proof, Class II, Division 1 motors must be dust- ignition-proof. … One important distinction is that the enclosure of a dust-ignition- proof motor is designed to exclude hazardous materials.
What is the difference between Class 1 Div 1 and Div 2?
Class 1 Hazardous Locations refer to facilities which deal with flammable gases, vapors, and liquids. Division 2 specifies that these flammable materials are handled, processed, or used in the defined hazardous location, but are not normally present in concentrations high enough to be ignitable.
Are Tefc motors rated for Class 1 Div 2?
The first type of motor that’s allowed is one that is identified for Class I, Division 2 locations. … Though TEFC motors typically don’t have a T-Code stamped on the nameplate with the maximum surface temperature, internal and external temperatures of the motor must be considered.
How do you know if a motor is explosion-proof?
An explosion proof motor is clearly marked with a nameplate that identifies its suitability for a given hazardous environment. Depending on the agency certifying the motor, the nameplate will clearly indicate the hazardous location Class, Division, and Group for which the motor is suited.
Do Motors explode?
Motors can create an explosion by one of two means: A motor surface gets so hot during operation that it ignites a vapor, gas or dust. A single arc from a motor malfunction, such as a winding insulation failure or power supply issue, ignites an ambient material.
Can NEMA 4X be used in Class 1 Div 2?
Combine the power of Eaton’s proven Class I Division 2 Groups A, B, C, D hazardous location listed transformers with corrosion resistant NEMA Type 4X enclosures for robust environmental protection in the harshest of applications.
What is the difference between Class 1 and Class 2 electrical equipment?
The Earth continuity and insulation resistance tests are carried out when the class 1 appliances are tested. The user of a Class 2 appliance is protected by two layers of insulation. Class 2 appliances are also known as Double insulated.