What is UL 1047?

UL 1047 is a standard for safety requirements for information technology equipment (ITE) power distribution units (PDUs) and similar equipment. It is published by Underwriters Laboratories (UL), an independent certification organization.

Scope and Purpose

The purpose of UL 1047 is to ensure the safe and reliable operation of ITE PDUs and similar equipment. It covers various aspects including construction, electrical, thermal, mechanical and fire protection requirements. The standard aims to minimize the risk of fire, electric shock, and other hazards associated with these types of equipment.

Key Requirements

UL 1047 sets out several key requirements that manufacturers must comply with to meet the standard. These include:

Rating and Marking: PDUs must be rated and marked in accordance with specific guidelines to indicate their intended use and limitations.

Protection against Electric Shock: PDUs must have proper insulation and grounding to prevent electric shock hazards.

Overcurrent Protection: PDUs must have appropriate measures in place to protect against overcurrent conditions.

Fire resistance: PDUs must be constructed with materials that have sufficient fire resistance to prevent the spread of fire.

Temperature limits: PDUs must be designed to operate within specified temperature limits to avoid overheating.

Certification Process

Manufacturers can seek UL certification for their ITE PDUs by submitting their products to UL for evaluation. UL experts will assess the products against the requirements of UL 1047 through testing and inspection. If the products meet all the necessary criteria, they will be awarded UL certification and can bear the UL Mark.

In conclusion, UL 1047 is an important standard that ensures the safety and reliability of ITE PDUs and similar equipment. By complying with this standard, manufacturers can provide assurance to consumers that their products meet stringent safety requirements. UL certification further enhances the credibility of these products in the market.