... -40~75 degree C(-40~167 degree F) Protection: Motor protection and polarity protection Lead wire: UL1571 AWG28,30; UL1007 ... Black PBT (UL94V-0) glass fiber ADDA 70X70X38mm(DS) motor fan detailed specification:1. frame size(mm): 70X70X382. bearing ... design-one or more stage of structure designADDA 70X70X38mm(DS) motor fan application:server system, communication equipment, projector, power supply, ...