UL Online Certifications Directory
QQIJ2.GuideInfo |
|
Page Bottom |
[Power Supplies - Component] Power Supplies, Specialty - Component
See General Information for Power Supplies - Component
The devices covered under this category are incomplete in certain constructional features or restricted in performance capabilities and are intended for use as components of complete equipment submitted for investigation rather than for direct separate installation in the field. THE FINAL ACCEPTANCE OF THE COMPONENT IS DEPENDENT UPON ITS INSTALLATION AND USE IN COMPLETE EQUIPMENT SUBMITTED TO UNDERWRITERS LABORATORIES INC.
These power supplies are intended for use in/with specific product types where the end-use product requirements have not yet anticipated these products' use.
This category also covers Recognized Component power supplies which are rebuilt by the original manufacturer or another party having the necessary facilities, technical knowledge and manufacturing skills. Rebuilt power supplies are rebuilt to the extent necessary by disassembly and reassembly using new or reconditioned parts. Rebuilt power supplies are subject to the same requirements as new products.
The basic standard used to investigate products in this category is Power Units Other Than Class 2
", and/or the applicable end-use product standard
(indicated under the SP column on the individual recognition), supplemented by requirements stemming from relevant installation or building Codes and/or special safety concerns.
Codes - The following summarizes and defines codes shown in the individual recognitions in addition to those indicated under Power Supplies Guide QQAQ2.
Supply category (SC) - Code identifies the type of supply to which the component is intended to be connected.
| SC Categories | Code |
| Branch circuit power | 0 |
| NEC Class 2 | 1 |
| Isolated secondary circuit | 4 |
| Limited energy isolated secondary circuit | 5 |
| Centralized DC | 6 |
Output category (OC) - Each output is identified to indicate the type of output.
| OC Categories | Code |
| NEC Class 1 | 0 |
| NEC Class 2 | 1 |
| Isolated secondary circuit | 4 |
For additional information, see Power Supplies Guide QQAQ2 and Power Supplies, General Purpose Guide QQFU2.
| Last Updated on 1996-11-12 |
|
Questions? |
Notice of Disclaimer |
Page Top |
Copyright © 2009 Underwriters Laboratories Inc.®
The appearance of a company's name or product in this database does not in itself assure that products so identified have been manufactured under UL's Follow-Up Service. Only those products bearing the UL Mark should be considered to be Listed and covered under UL's Follow-Up Service. Always look for the Mark on the product.
UL permits the reproduction of the material contained in the Online Certification Directory subject to the following conditions: 1. The Guide Information, Designs and/or Listings (files) must be presented in their entirety and in a non-misleading manner, without any manipulation of the data (or drawings). 2. The statement "Reprinted from the Online Certifications Directory with permission from Underwriters Laboratories Inc." must appear adjacent to the extracted material. In addition, the reprinted material must include a copyright notice in the following format: "Copyright © 2009 Underwriters Laboratories Inc.®"
