What is UL 60335-2-220 ?

What is UL 60335-2-220?

UL 60335-2-220 is a safety standard published by Underwriters Laboratories (UL) that outlines the safety requirements for portable transformers, power supplies, battery chargers, and similar products that are designed for household use. This standard specifically covers the safety requirements for portable transformers, power supplies, battery chargers, and similar products that are intended for use in portable applications, such as camping or outdoor activities.

The main purpose of UL 60335-2-220 is to ensure the safety of consumers when using these products, and to minimize the risk of potential hazards such as electric shock, fire, or mechanical injuries. To comply with this standard, manufacturers must design and produce their products in a way that minimizes risks associated with electrical components, wiring, insulation, temperature rise, and other potential dangers.

UL 60335-2-120: The Safety Standard for Electric Pumps for Water Systems

UL 60335-2-120 is a safety standard developed by Underwriters Laboratories (UL) that specifically applies to the safety requirements of electric pumps for water systems. This international recognized standard is designed to ensure the safe use of electric pumps for water systems and to minimize the risk of potential hazards such as electric shock, fire, mechanical injuries, and other potential risks associated with their operation.

The key requirements of UL 60335-2-120 include:

* The electric pump should be designed to operate at a minimum voltage of 60 volts.

* The electric pump should have a temperature rating of at least 140°F (60°C) for the in-let and the outlet of the pump.

* The electric pump should have a leakage rating of at least 100 ppm (0.1%) of the total fluid flow.

* The electric pump should have a pressure rating of at least 20 psi (120 kPa) at a water height of 2, 000 psi (12, 000 kgf).

* The electric pump should have a flow rate of at least 5 gallons per minute (gpm) at a water height of 2, 000 psi (12, 000 kgf).

Conclusion

UL 60335-2-220 and UL 60335-2-120 are two important safety standards that are designed to ensure the safety of consumers when using portable transformers, power supplies, battery chargers, and similar products, as well as electric pumps for water systems. These standards provide manufacturers with specific guidelines for designing and producing products that minimize the risk of potential hazards associated with electrical components, wiring, insulation, temperature rise, and other potential dangers. By complying with these standards, manufacturers can help to ensure the safety of their products, and protect the well-being of their customers.