10LB Amerex B456 - ABC Dry Chemical Fire Extinguisher - OEM

The Amerex B456 is a 10 lb ABC dry chemical fire extinguisher engineered for high-demand commercial and industrial environments. While 5 lb models are the standard for light-hazard offices, the B456 is the professional choice for "Ordinary" and "Extra" hazard areas. With a formidable 4A:80B:C UL rating, this unit offers double the fire-extinguishing capacity of standard portable units on Class A hazards and significantly more suppression power for flammable liquid fires.

Built with Amerex's signature all-metal valve construction and a heavy-duty steel cylinder, the B456 is designed to withstand the vibration of a manufacturing floor or the humidity of a mechanical room. It utilizes a siliconized monoammonium phosphate dry chemical that flows smoothly and resists packing, ensuring the unit is ready to perform in a split-second emergency. This is a fully rechargeable, professional-grade safety tool designed to meet the most rigorous NFPA 10 and OSHA compliance standards.

The Power of the 4A:80B:C UL Rating

Understanding the rating is key to proper facility placement. The B456 provides a massive jump in capability compared to smaller models:

• Class A (Ordinary Combustibles): The 4A rating means this unit provides the equivalent of 5.0 gallons of water for wood, paper, and trash fires. This allows for a much larger "travel distance" between units in large warehouses.
• Class B (Flammable Liquids): The 80B rating indicates it can suppress up to 80 square feet of deep-layer liquid fire—essential for auto shops and chemical storage.
• Class C (Electrical Equipment): The non-conductive agent ensures safety when suppressing fires in energized electrical panels, machinery, and server racks.

The Amerex B456 Advantage: Built for Longevity

• Anodized Aluminum Valve Body: Amerex uses high-strength anodized aluminum for the valve and handles, ensuring they will not rust or become brittle like plastic valves found in consumer-grade models.
• High-Gloss Polyester Powder Coating: The cylinder is treated with an oven-cured polyester powder finish that provides superior resistance to UV fading, salt spray, and chemical exposure.
• Large Loop Stainless Steel Pull Pin: Designed for high-stress environments, the large loop allows for easy removal even while wearing thick industrial work gloves.
• Field-Proven Reliability: Amerex is the only major manufacturer that still maintains a focus on high-quality, American-assembled components, making it a favorite for fire service technicians who value ease of maintenance and recharge.

The 10 lb capacity of the B456 is specifically recommended for areas where a fire could grow rapidly:

• Warehouses & Logistics: Ideal for protecting large aisles of palletized storage where high Class A ratings are required by code.
• Auto Repair & Garages: Provides the 80B rating necessary to handle gasoline and oil spills effectively.
• Manufacturing Plants: Rugged enough to be mounted near machining centers and assembly lines.
• Mechanical & Boiler Rooms: High-capacity protection for the "heart" of a building's infrastructure.
• Institutional Buildings: The specified choice for school hallways and gymnasiums where durability and high capacity are paramount.

The Amerex B456 is a serviceable investment. To maintain its UL listing and ensure facility compliance, the following maintenance cycle is required by NFPA 10:

• Monthly Visual Inspection: Verify the pressure gauge is in the green, the safety seal is unbroken, and the unit is unobstructed.
• Annual Maintenance: A certified fire technician must conduct an external examination and verify the chemical fluidity.
• 6-Year Internal Service: The unit must be emptied, inspected internally, and recharged to ensure the dry chemical remains fluidized.
• 12-Year Hydrostatic Test: A high-pressure test of the steel cylinder is required to verify structural integrity for another decade of service.

Why choose a 10 lb unit over a 5 lb unit?
The B456 provides nearly double the discharge time (20 seconds vs. 12-14 seconds) and twice the firefighting capacity on wood and paper. In a real emergency, those extra seconds and the increased volume of agent can prevent a small fire from becoming uncontrollable.

Does this unit come with a vehicle bracket?
The B456 includes a standard wall bracket. For mounting in trucks or heavy equipment, you must purchase a specialized Amerex 862 or 810G vehicle bracket to ensure the unit is secured against high vibrations and impact.

Is this extinguisher safe for commercial kitchens?
It is excellent for protecting the general area of a kitchen (trash, electrical). However, for fires involving deep-fat fryers or cooking oils, you must have a Class K (Wet Chemical) extinguisher to comply with NFPA 96 standards.