Electrical UL/CSA
Electrical UL/CSA > Control Panel Application Papers

Component Application Papers

These application papers are specific to topics related to industrial control panels.  They reference UL and NFPA requirements as well as other specifications.

Application Papers
Small ConductorsSmall Conductor Protection

This paper contains information from the Cooper Bussmann 2008 Code Update document related to the new NEC® requirements for the use of 16 and 18 AWG conductors.  The small wire report IEEE white paper is also included in this file for reference.

UL Small WireUL Small Wire Report

The UL-NFPA 79 Small Wire Report is a study on protecting conductors smaller than 14 AWG from the NFPA 79 Standard.

PDB Spacing RequirementsPower Distibution Block Spacing Requirements

This paper addresses the spacing requirements and the proper application of PDBs in industrial control panels.

Supplemental ProtectorsSupplemental Protectors

Supplemental Protectors are commonly misapplied in industrial control panel applications.  This paper explains several of the more common misapplications.

NFPA 79Update on 2002 NFPA 79

This paper contains information on important updates to the 2002 edition of NFPA 79 Standard for Industrial Machinery.

IEEE Small WireIEEE-NFPA Small Wire Report

The IEEE-NFPA 79 Small Wire Report is a design-related application document that takes a look at protecting conductors smaller than 14 AWG.