$143.50 Original price was: $143.50.$71.00Current price is: $71.00. Standard for Circuit Breakers for Use in Communications Equipment Underwriters Laboratories , 03/01/2013 UL 489A CSDS Proposal quantity Add to cart Category: UL Description Standard By:Underwriters Laboratories , 03/01/2013 Published:03/01/2013 Related products UL Subject 10 $220.13 Original price was: $220.13.$110.00Current price is: $110.00. Add to cart UL Subject 1690 $164.61 Original price was: $164.61.$82.00Current price is: $82.00. Add to cart UL Subject 1971 $249.18 Original price was: $249.18.$124.00Current price is: $124.00. Add to cart UL 1413 $631.00 Original price was: $631.00.$315.00Current price is: $315.00. Add to cart UL Subject 1450 $178.71 Original price was: $178.71.$89.00Current price is: $89.00. Add to cart