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Frequently Asked Questions Q: What is the temperature rating of BURNDY® connectors? A: All our UL Listed connectors have a 90° C temperature rating. There is no indication of the temperature rating on our UL Listed copper connectors because it is not required by UL. Our UL Listed aluminum connectors are marked with AL9CU to indicate the 90° C temperature rating, as required by UL. The UL publication titled, “Electrical Construction Materials” dictates the connector marking requirements, in the section titled “Wire and Connectors and Soldering Lugs (ZMVV)”, it states how connectors are rated and marked: - Terminal connectors, rated for copper conductors only, for all wire ranges, with no temperature markings, are rated for 90° C. - Terminals with an aluminum body rated for aluminum, or aluminum and copper conductors, for all wire ranges, have a temperature rating as marked. AL9CU designates a 90° C rating, and AL7CU designates a 75° C rating. Q: How can I find the correct compression lug in your catalog? A: Use the navigation guided on page C-3 of the Master Catalog. Q: Can Aluminum connectors be used on flex conductors? A: No, copper connectors must be used on copper flexible conductors. If a mechanical connector is needed for flex conductors, we offer the VA and VVA connectors on page A-21 of the Master Catalog, and for compression connectors refer to the navigation guide on page C-3. Q: Can AYP/AYPO style connectors be used on copper wire? A: Yes, they are UL Listed for use on both copper and aluminum wire. They can not be used on copper flex conductors. Q: Can compact and compressed cable be used with the BURNDY® line of compression terminals, and splices without downsizing? A: Yes, BURNDY® aluminum and copper compression terminals and splices are recommended on compact and compressed cable. With the exception of 700 kcmil, no downsizing is required. US: 1-800-346-4175 © 2011 BURNDY LLC www.burndy.com Canada: 1-800-387-6487 Frequently Asked Questions (continued) Q: Can aluminum wire be used in a copper compression terminal? A: No, aluminum wire should never be installed in a copper compression terminal. Q: Is there a list showing which dies to use on different wire sizes? A: There is a die chart on page C-9 in the Master Catalog for our most common terminals and splices. Q: What is the maximum voltage rating for aluminum mechanical set screw connectors such as the KA-U series. A: They are UL Listed to 600 volts, but are applicable to 13.8 kV. Q: I have a Y750 tool with “U” style dies, can I use the same dies in the PATRIOT® PAT750 battery operated crimping tool? A: Yes, the same dies that work in the Y750 tool will also work in the PAT750 tool. Q: Using the WDC4500 or WDA8300 dieless adapters, how many crimps should be made? A: When crimping YA, YS, YA-A, YS-A terminals or splices using the correct WDC4500 or WDA8300, make only 1 crimp on the barrel (1 on each side for splices). WDC4500: On copper sizes 350 kcmil and larger, remove nest and only use the indentor. WDA8300: On copper sizes 300 kcmil and larger, and on aluminum sizes 3/0 and larger, remove nest and only use the indentor. US: 1-800-346-4175 © 2011 BURNDY LLC www.burndy.com Canada: 1-800-387-6487