An explosion-proof circuit breaker is a circuit protection device built for use in hazardous locations where flammable gases or vapors may be present. The enclosure is designed to contain any internal arc or spark — preventing ignition of the surrounding atmosphere.
Class I Division 2 — What It Means
A Class I Division 2 location is one where flammable gases or vapors are handled, processed, or used — but are normally confined within closed containers or systems. Hazardous concentrations exist only under abnormal conditions such as equipment failure.
This is the most common classification in oil & gas, petrochemical, and industrial facilities. Equipment rated for Division 2 must be nonincendive — meaning it cannot produce sparks or arcs capable of igniting the surrounding atmosphere under normal operation.
A Class I Division 2 location is one where flammable gases or vapors are present only under abnormal conditions — such as a container failure or equipment malfunction. Under normal operation, concentrations are below hazardous levels. This is the most common hazardous location classification in oil & gas and petrochemical facilities.
Yes. CRI APBM series circuit breakers are FM Approved for Class I Division 2 hazardous locations, carrying FM File #301885. They are manufactured in New Orleans, Louisiana.
CRI APBM series breakers are available in AC and DC ratings of 1, 2, 3, 5, 7.5, 10, and 15 amps. DC breakers are also available in 20 amps.
CRI APBM series breakers are rated for Groups A, B, C, and D — covering acetylene, hydrogen, ethylene, propane, natural gas, gasoline, and most common industrial hydrocarbons.
Industrial Equipment Company stocks CRI APBM series breakers. You can order online or call us at 504-734-1147. We have offices in Houston, Dallas, Beaumont, San Antonio, New Orleans, and Tulsa.
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Our team stocks CRI explosion-proof circuit breakers and can help you confirm the right amp rating and configuration for your application.
