CRI Explosion-Proof
Circuit Breakers

CRI Explosion-Proof Breakers: FM-Certified Protection for Hazardous Locations

In refineries, chemical plants, offshore platforms, and petrochemical facilities throughout the United States, including major industrial hubs in Texas and Louisiana, a single electrical spark in the wrong location can have catastrophic consequences. CRI Circuit Protection Products, LLC manufactures the only FM-Certified, American-made Class I Division II nonincendive circuit breaker on the market — built right in New Orleans, Louisiana.

The CRI APBM series uses Airpax sealed circuit breakers mounted in a polyamide DIN rail housing. Approved for Class I, Division II, Groups A, B, C, and D hazardous locations with a T6 temperature rating, these breakers are engineered to prevent ignition under normal operating conditions — giving your facility the protection it needs without the bulk of traditional explosion-proof enclosures.

Industrial Equipment Company is the authorized distributor of CRI breakers. We stock the full APBM product line and can ship same or next business day from our Houston, Dallas, San Antonio, Tulsa, and New Orleans warehouses.

• ✓CRI APBM series breakers are FM certified (File #301885), UL Listed, and rated for Class I Division 1 and Division 2 hazardous locations across Groups A, B, C, and D.
• ✓CRI breakers carry a T6 temperature rating (85°C max surface temperature) — the most conservative and broadly applicable T-code, suitable for nearly all hazardous location applications.
• ✓Available in DC ratings from 1A to 20A and AC ratings from 1A to 15A. Custom amperage and multi-pole configurations available on request.
• ✓CRI breakers are manufactured in New Orleans, Louisiana and designed for DIN rail installation inside NEMA 7 explosion-proof enclosures.

• ✓CRI breakers comply with UL 1077, UL 508, and CSA 22.2 standards and are suitable for oil & gas, refineries, chemical plants, offshore platforms, paint booths, and marine applications.
• ✓The APBM enclosure is designed to contain any internal arc or explosion and cool escaping gases before they reach the surrounding atmosphere — meeting the NEC definition of explosion-proof equipment.
• ✓Industrial Equipment Company is an authorized stocking distributor of CRI APBM breakers with inventory in Houston, TX and New Orleans, LA — same-day shipping available.
• ✓Order online at shop.indeco-tx.com, call 713-928-3181 (Houston) or 504-734-1147 (New Orleans). Bulk pricing and custom orders available.

What is Class I, Division II?

Class I locations contain flammable gases or vapors. Division II means these hazards are present only under abnormal conditions — such as a leak, rupture, or equipment failure. This is distinct from Division I, where hazards are present continuously or under normal operation.

Groups A, B, C, D

Gas groups define the specific flammable substance present. Group A = Acetylene. Group B = Hydrogen. Group C = Ethylene. Group D = Propane, methane, natural gas. CRI APBM breakers are approved for all four groups — covering the full range of petrochemical and refinery environments.

T6 Temperature Rating

The T6 rating means the surface temperature of the equipment will not exceed 85°C (185°F) under normal operation. This is the most stringent temperature class, ensuring the breaker cannot ignite even the most sensitive flammable substances in the environment.

Refineries & Petrochemical Plants

Control panels, instrument loops, and branch circuit protection in Class I, Division II areas throughout Texas Gulf Coast and Louisiana refinery complexes.

Power Generation

Gas turbine control rooms, generator enclosures, and switchgear panels in natural gas power plants where methane (Group D) is present.

Offshore & Marine

Offshore drilling platforms, FPSOs, and marine vessels operating in the Gulf of Mexico where compact, lightweight protection is critical.

Chemical Processing

Ethylene, propane, and hydrogen handling facilities where Groups A, B, C, and D coverage is required for full-facility compliance.

Oil & Gas Production

Wellhead control panels, compressor stations, and pipeline facilities in the Permian Basin, Eagle Ford, and Gulf Coast production areas.

Industrial Manufacturing

Paint booths, solvent handling areas, grain elevators, and any manufacturing environment with intermittent flammable vapor exposure.