A CO2 (carbon dioxide) fire extinguisher with a 3 kg capacity is designed to combat fires involving flammable liquids (Class B fires) and electrical equipment (Class C fires). Here's a detailed description:

CO2 3 kg Fire Extinguisher:

• Type: Carbon Dioxide (CO2)
• Capacity: 3 kg
• Suitable for: Class B (flammable liquids like oil, petrol, solvents) and Class C (electrical fires) fires.
• Operation: The extinguisher releases CO2 gas under pressure, which displaces oxygen around the fire, effectively suffocating it.
• Nozzle: Comes with a horn or a hose and nozzle assembly that directs the CO2 gas at the base of the fire.
• Cylinder Material: Typically made from steel or aluminum.
• Pressure: Stored under high pressure (approximately 50-60 bar), which helps in quick discharge.
• Features:
  • Non-conductive, making it safe for use on electrical fires.
  • Leaves no residue, which is ideal for sensitive equipment and clean areas.
  • Has a discharge time of approximately 8-10 seconds.
• Weight: The total weight including the extinguisher is usually around 10-12 kg.
• Color: Typically red with a black label or band indicating CO2 type.

Usage Tips:

• Hold the nozzle carefully; it becomes extremely cold during discharge.
• Aim the horn or nozzle at the base of the fire, sweeping side to side.
• Do not use in confined spaces without proper ventilation due to the risk of suffocation.