5LB Amerex B402T - ABC Dry Chemical Fire Extinguisher - OEM
The Amerex B402T is a professional-grade, 5 lb ABC dry chemical fire extinguisher that represents the perfect balance between high-capacity suppression and lightweight maneuverability. Rated 3-A:40-B:C, this unit provides triple the Class A extinguishing power of a standard 2.5 lb unit while remaining light enough for any staff member to operate effectively under stress. Whether you are browsing for a hospital corridor, a retail stockroom, or a fleet service truck, the B402T is engineered to tackle the most common industrial and commercial fire threats.
Built with a high-strength drawn-steel cylinder and an all-metal valve assembly, the B402T avoids the common failure points of plastic-head consumer models. It is a fully rechargeable, sustainable safety asset. For facility managers who need a "One-Size-Fits-Most" solution that meets strict NFPA 10 requirements without the bulk of a 10 lb unit, the Amerex B402T is the industry-leading choice.
The Science of Multi-Purpose Suppression: Sintering
1. 3-A Thermal Insulation
On Class A fires (wood, trash, fabric), the chemical agent undergoes "Sintering" at roughly 350°F. The powder melts and forms a resilient, oxygen-excluding crust over the fuel. This coating is the key to preventing "Deep-Seated" re-ignition, a common danger in office fires involving dense paper.
2. 40-B Vapor Suppression
For Class B liquid fires, the B402T provides enough agent to suppress 40 square feet of a deep-layer flammable liquid fire. The fluidized powder acts as a chemical catalyst, interrupting the free-radical chain reaction within the flame zone.
3. Class C Dielectric Safety
The agent is siliconized to ensure it remains moisture-resistant and non-conductive. This allows an operator to safely engage fires in breaker panels or server racks without the risk of electrical shock.
Why the 5 lb B402T is the "Agile Defender"
- Extended "Correction Time": While compact units discharge quickly, the B402T provides approximately 14 seconds of discharge time. This allows the operator to refine their "Sweep" technique at the base of the fire.
- Increased Projectile Range: With a high-velocity nozzle, the B402T can project agent up to 18 feet. This is essential for maintaining distance from intense heat.
- Vehicle and Marine Readiness: The "T" in B402T signifies that it includes a UL-Listed Vehicle Bracket. This ensures the unit remains secured during high-vibration transport in work vans or service trucks.
The 5 lb capacity is the primary specified choice for "High-Density" hazard zones:
- Hospitals & Healthcare: The ideal weight for nurses and staff to handle while providing significant 3-A protection.
- Restaurants: Providing supplemental protection for dining areas where electrical (Class C) hazards are present.
- Fleet & Utility Vehicles: The DOT-compliant choice for heavy-duty trucks requiring higher knockdown power.
- Retail & Small Business: Protecting stockrooms from ordinary combustibles.
| Manufacturer | Amerex Corporation |
| Model | B402T |
| Agent Type | ABC Dry Chemical |
| UL Rating | 3-A:40-B:C |
| Capacity | 5 lbs (2.27 kg) |
| Discharge Time | ~14 Seconds |
| Cylinder Material | Drawn Steel |
To maintain NFPA 10 compliance, the B402T must follow a standardized cycle:
- Monthly Visual Inspection: Verify the pressure gauge is in the "Green" zone and the safety pin is secured.
- Annual Service: A technician must conduct an external examination and verify the chemical's fluidity.
- 6-Year/12-Year Service: Every six years, the unit requires internal maintenance, followed by a hydrostatic test at the twelve-year mark to verify the steel vessel's integrity.
What is the difference between a 3-A and 2-A rating?
A 3-A rating means this 5 lb unit has 50% more extinguishing power on wood and paper fires than a standard 2-A rated unit. It allows you to tackle larger fires with a smaller, more manageable unit.
Can I use this on my home computer?
While safe (Class C), the powder is mildly corrosive and leaves a residue. For data centers, we recommend a "No-Mess" unit.
Where can I find wholesale fire equipment?
For outfitting large facilities, you should look for wholesale fire equipment distributors who specialize in Amerex products. They can provide the bulk fire department supplies needed for a complete safety overhaul.