“UL 542:1999” has been added to your cart. View cart Home UL UL Subject 1778:2002 UL Subject 1778:2002$109.26 Original price was: $109.26.$54.00Current price is: $54.00. Standard for Uninterruptible Power Supply Equipment (Bulletin, 11/27/2002) Underwriters Laboratories , 11/27/2002 UL Subject 1778:2002 quantity Add to cart Category: UL Description Standard By:Underwriters Laboratories , 11/27/2002 Published:11/27/2002 Related products UL Subject 252:1999 $149.22 Original price was: $149.22.$74.00Current price is: $74.00. Add to cart UL 542:1999 $133.96 Original price was: $133.96.$66.00Current price is: $66.00. Add to cart UL Subject 183:1999 $241.75 Original price was: $241.75.$120.00Current price is: $120.00. Add to cart UL Subject 1564:1999 $161.46 Original price was: $161.46.$80.00Current price is: $80.00. Add to cart UL Subject 83:1999 $244.01 Original price was: $244.01.$122.00Current price is: $122.00. Add to cart UL 507:1999 $155.31 Original price was: $155.31.$77.00Current price is: $77.00. Add to cart UL Subject 2250:1999 $172.30 Original price was: $172.30.$86.00Current price is: $86.00. Add to cart UL Subject 2329:1999 $290.32 Original price was: $290.32.$145.00Current price is: $145.00. Add to cart UL Subject 6500:1999 $213.52 Original price was: $213.52.$106.00Current price is: $106.00. Add to cart UL Subject 1062:1999 $282.91 Original price was: $282.91.$141.00Current price is: $141.00. Add to cart