RE: UL1950 vs UL508 for Switching Power Supplies

1998-10-14 Thread Peter Merguerian
be supplied with UL508 type power supplies. Thanks for your help and Best Regards From: Sparacino,George sparaci...@andovercontrols.com To: pe...@itl.co.il Subject:RE: UL1950 vs UL508 for Switching Power Supplies Date sent: Tue

UL1950 vs UL508 for Switching Power Supplies

1998-10-09 Thread Peter Merguerian
Dear PSTC Members, Assuming a manufacturer had UL1950 Third Edition Recognized Component Class I (earthed) ITE Power Supplies and they wanted to have a Listing (as an open-end device) to the Standard for Industrial Control Equipment, UL508. 1) What additional requirements must be met? I am