In this study, PBL was specially designed and implemented in Electrical Technology Module, one of the modules in the polytechnic’s Electrical Engineering Course, as a comparison to conventional approach. The design was using PBL key elements that were customized from existing pioneer PBL models. Within this, students in the experimental group underwent PBL procedures, while students in the control group were using conventional approach such as lecturing method. In regards to the study samples, it can be concluded that PBL does not enhance students’ critical thinking ability as compared to conventional approach, in Electrical Engineering Module.