What is UL 684 ?

What is UL 684 and UL 694?

Underwriters Laboratories (UL) is a global safety certification company that develops and publishes various standards, including UL 684 and UL 69These standards are specific to the construction, performance, and testing of industrial machinery cables and safety switches, respectively.

UL 684 and UL 694 are designed to establish guidelines for the production and testing of heavy-duty industrial machinery cables and safety switches, respectively. The main purpose of these standards is to ensure that the cables and switches meet certain safety requirements and are suitable for use in hazardous environments.

Key Requirements of UL 684 and UL 694

UL 684 and UL 694 are both technical standards that outline the requirements for the safety and reliability of industrial machinery cables and safety switches, respectively. The following are the key requirements of each standard:

UL 684:

* The cables must meet certain safety requirements and be suitable for use in hazardous environments.

* The cables must be made of fire-resistant materials and have a high melting point.

* The cables must have sufficient mechanical strength and withstand the stresses of heavy-duty applications.

* The cables must have a stable, non-kinking design and be free from defects.

* The cables must have a positive or negative voltage rating, depending on the application.

UL 694:

* The switches must be designed to prevent electrical malfunctions or failures.

* The switches must be made of fire-resistant materials and have a high melting point.

* The switches must have sufficient mechanical strength and withstand the stresses of heavy-duty applications.

* The switches must have a stable, non-kinking design and be free from defects.

* The switches must have a positive or negative voltage rating, depending on the application.

Compliance with UL 684 and UL 694 is necessary for manufacturers to obtain UL certification for their products. This certification indicates that the manufacturer has met the necessary safety standards and that their products are safe and reliable for use in hazardous environments.

In conclusion, UL 684 and UL 694 are important technical standards that help ensure the safety and reliability of industrial machinery cables and safety switches, respectively. These standards provide manufacturers with guidelines for the construction, performance, and testing of their products, ensuring that they meet the necessary safety requirements and can operate safely and reliably in hazardous environments.