The Buckeye 5 lb ABC dry chemical fire extinguisher (3-A:40-B:C) is a compact, easy-to-handle size for offices, retail, classrooms, and light commercial spaces. It also meets DOT 49 CFR §393.95 for standard commercial vehicles such as semis, box trucks, and buses. The monoammonium phosphate agent fights Class A, B, and C fires. It is not recommended for use on sensitive electronics or computers.
Made in the USA by Buckeye in Kings Mountain, North Carolina. Supports Buy American and domestic-preference procurement on public projects.
Specifications
- UL/ULC rating: 3-A:40-B:C
- Agent: 5 lb monoammonium phosphate (ABC dry chemical)
- Height: 16.375 in
- Width: 7.25 in
- Cylinder diameter: 4.25 in
- Discharge time and range: 14 seconds, 12 to 18 ft
- Shipping weight: 10 lb
- Operating temperature: -65°F to 120°F
- Construction: Polyester epoxy powder-coated steel cylinder, anodized all-metal valve
- Listings: UL and ULC Listed; ANSI/UL 299 and ANSI/UL 711; DOT compliant; US Coast Guard approved with mounting bracket
- Origin: Made in the USA (Kings Mountain, NC)
Building placement (NFPA 10)
In commercial buildings, portable fire extinguisher placement follows NFPA 10, not the DOT vehicle rules below. Every point on the floor must be within 75 ft of a Class A extinguisher. Mount the unit with its top no more than 5 ft above the floor and at least 4 in of floor clearance (NFPA 10 §6.1.3.8). A 2-A or larger extinguisher within 75 ft covers most light-hazard areas, but the required size and count are set by your authority having jurisdiction (AHJ).
Cabinet fit
At 4-1/4 in diameter and 16-3/8 in tall, it fits virtually any standard semi-recessed extinguisher cabinet, including both 5 lb and 10 lb cabinet tubs, with room to spare.
DOT Vehicle Size Recommendations
DOT 49 CFR §393.95 requires commercial motor vehicles to carry a UL-listed fire extinguisher. Minimum size depends on vehicle class and whether the load is placarded hazmat.
| Size | UL Rating | Recommended For |
|---|---|---|
| 2.5 lb | 1-A:10-B:C | Pickups, light service vehicles, CMVs under 10,001 lb GVWR |
| 5 lb | 3-A:40-B:C | Semi-trucks, box trucks, flatbeds, buses (standard CMVs) |
| 10 lb | 4-A:80-B:C | Placarded hazmat transport, tanker trucks, large fleets |
| 20 lb | 10-A:120-B:C | Heavy-duty extended-fire scenarios, high-risk cargo |
See the full DOT fire extinguisher requirements guide for hazmat rules, mounting specifications, and inspection intervals.