Frequently Asked Questions
Products sold in North America
It is sometimes desirable to paint busway, typically to match the surroundings (ceiling).
As stated in our Busway Systems catalog, "(a) busway system, that includes plug-in units, can be painted after installation. However, all precautions must be taken to prevent the paint from coming in contact with conductors and insulation. All nameplates and labels (safety labels, serial number labels, UL Labels, etc.) must remain visible and legible."
CSA Standards and File
Canadian Heavy Duty Safety Switches
Codes and Standards
The Canadian Heavy Duty safety switches are tested to CSA C22.2, No. 4-16 "Standard for Safety - Enclosed and Dead-Front Switches". Additional CSA standards may be referenced within C22.2 for compliance to that standard. The Canadian Heavy Duty safety switches are listed in CSA Files #LL-89067 and #LL-97406-3.
What does UL accept as conditions for Supplementary Protectors?
UL1077 Supplementary Protectors
UL 1077 Circuit Breaker, File No. E90509, CSA C22.2 No. 235 File No. 179014
CONDITIONS OF ACCEPTABILITY (NOT FOR UL REPRESENTATIVE USE):
Use - For use only in products where the acceptability of the combination is determined by Underwriters Laboratories Inc.
1.These devices are intended to be DIN rail mounted or faceplate mounted with front mounting bracket accessory. Additionally, they should be mounted in an enclosure having adequate strength and thicknesses in the intended manner and with spacing in accordance with the requirements of the overall equipment.
2. Intentionally left blank.
3.These devices should be used within their Recognized ratings.
4.Test records should be reviewed, including short circuit tests, when judging the acceptability of these devices in an end use application.
5.These devices are not suitable for branch circuit protection.
6.These devices are designed to trip within the trip curve characteristics provided by the manufacturer; as indicated in the report. Trip times were confirmed at 300% of rating and at 150% of rating.
7.Considerations should be given to the need for insulating barriers when uncovered openings in the side of the case are mounted adjacent to metal surfaces, such as an enclosure.
8.These devices have been determined to be trip free per
requirements effective July 14, 2008, 6th Edition of UL 1077.
9.The terminals are suitable for Field or Factory wiring.