UL is an abbreviation of “Underwriters Laboratories Inc.” It is a private inspection institution established by an American insurance company association in 1894 to protect human life and properties from fires, disasters, and other accidents.
It tests and certifies all kinds of products, parts, and materials.
The UL standard is a safety standard allowed to be used in most states in America.
|1-phase||UL1004-1 (provision for motor structures in general)
UL1004-3 (provision for overheat protection by thermal protector)
|3-phase||UL1004-1 (provision for motor structures in general)|
|1-phase motor||Thermal-device-protected Motors-Component||XEWR2. E141674|
|Thermal-device-protected Motors-Certified for Canada-Component||XEWR8. E141674|
|3-phase motor||Motors-Component||PRGY2. E172621|
|Motors-Certified for Canada-Component||PRGY8. E172621
In Canada, it is obligated by law to use the CSA standard.
UL is certified as a certification institution of the CSA standard and it is allowed to display the “cUL” mark for products which are certified for the CSA standard.
Products with the display of the “cUL” mark are allowed to be used in Canada.
|1-phase||C22.2 No.100 (provision for general matters of motors)
C22.2 No.77 (provision for the requirements of motors with a self overheat protection device)
|3-phase||C22.2 No.100 (provision for general matters of motors)|