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. With a 4-A:80-B:C UL rating, the B456 offers double the Class A fire-extinguishing capacity of standard portable units and significantly more suppression power on flammable liquid fires — making it the professional choice for ordinary and extra hazard areas including warehouses, auto shops, and manufacturing plants where fires can grow rapidly before a responder reaches them.

Built with Amerex's all-metal valve construction and a high-tensile steel cylinder finished with an oven-cured polyester powder coat, 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 resists packing, ensuring the unit is ready to perform in a split-second emergency. This is a fully rechargeable, professional-grade safety tool built to meet NFPA 10 compliance standards.

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

• Class A (Ordinary Combustibles): The 4-A rating provides the equivalent of 5.0 gallons of water on wood, paper, and trash fires. This allows for a much larger travel distance between units in large warehouses — the primary reason this size is specified for ordinary hazard commercial occupancies under NFPA 10.
• Class B (Flammable Liquids): The 80-B rating indicates this unit can suppress up to 80 square feet of a deep-layer liquid fire — essential for auto shops and chemical storage areas.
• Class C (Electrical Equipment): The non-conductive agent ensures safe suppression of fires in energized electrical panels, machinery, and control systems.

The Amerex B456 Advantage

• Anodized Aluminum Valve Body: High-strength anodized aluminum valve and handles will not rust or become brittle like plastic valve components found in consumer-grade models — a meaningful durability advantage in commercial and industrial environments.
• High-Gloss Polyester Powder Coating: The oven-cured polyester finish 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 pull even while wearing thick industrial work gloves.
• Fully Rechargeable: A permanent safety asset that can be professionally recharged and returned to service after any use, lowering long-term cost of ownership compared to disposable units.

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

• Warehouses and Logistics: Protecting large aisles of palletized storage where high Class A ratings are required by fire code to satisfy travel distance requirements.
• Auto Repair and Garages: The 80-B rating provides the Class B capacity needed to handle gasoline and oil spills effectively alongside ordinary combustible and electrical hazards.
• Manufacturing Plants: Durable enough to be mounted near machining centers and assembly lines where vibration and impact are constant.
• Mechanical and Boiler Rooms: High-capacity ABC protection for the concentrated electrical, fuel, and ordinary combustible hazards common in building mechanical spaces.
• Institutional Buildings: The standard specification for school hallways and gymnasiums where durability and high capacity are paramount.

To maintain NFPA 10 compliance, the B456 must follow a standardized maintenance cycle:

• Monthly Visual Inspection: Verify the pressure gauge is in the green zone, the safety seal is unbroken, and the unit is unobstructed in its mounting location. Confirm inspection tags are current.
• Annual Maintenance: A certified fire technician must conduct an external examination and verify the chemical's fluidity.
• 6-Year Internal Service: The unit must be emptied, inspected internally, and recharged to ensure the dry chemical remains fluidized and the cylinder interior is in serviceable condition.
• 12-Year Hydrostatic Test: A high-pressure test of the steel cylinder is required to verify structural integrity for continued service.

Why choose a 10 lb unit over a 5 lb unit?

The B456 provides nearly double the discharge time (20 seconds vs 12 to 14 seconds for a 5 lb unit) and twice the Class A and B firefighting capacity. In a real emergency, those extra seconds and the increased agent volume can prevent a small fire from escalating to a point where it can no longer be controlled with a portable extinguisher.

Does this unit come with a vehicle bracket?

The B456 includes a standard wall bracket. For mounting in trucks or heavy equipment where road vibration and impact are factors, you should purchase a specialized Amerex vehicle bracket to ensure the unit is properly secured and remains accessible in an emergency.

Is this extinguisher appropriate for commercial kitchens?

The B456 is excellent for protecting the general areas of a kitchen — trash, electrical equipment, and ordinary combustibles. However, for fires involving deep-fat fryers or cooking oils, a Class K wet chemical extinguisher is required to comply with NFPA 96. The B456 should not be the sole extinguisher at a cooking appliance station.