In the modern world, electrical systems form the backbone of daily life, powering everything from household appliances to complex industrial machinery. The efficiency, reliability, and safety of these systems depend greatly on proper wiring. However, a persistent challenge in vocational education is the lack of adequate training devices that realistically simulate professional electrical installations. A cost-effective, self-produced training model offers a viable solution to this problem. At present, only 69% of students demonstrate proficiency in wiring electrical systems, highlighting the need for improved instructional tools. To address this gap, this study developed a demonstration model for wiring a four-way switch control, designed to enhance electrical installation and maintenance training for senior high school students. The study employed a descriptive-developmental research design, following a structured process of creation, refinement, and evaluation of the improvised model. Two senior high schools offering Electrical Installation and Maintenance programs were identified as research sites. Findings revealed that the developed wiring model is both accurate and highly suitable for instructional use. Its user-friendly design successfully captured students attention, resulting in high levels of satisfaction and positive engagement. Evaluation results showed that most respondents rated the model as excellent, confirming its effectiveness and educational value. Both experts and students assessed the model as highly acceptable in terms of usability, effectiveness, and relevance to technical education. Statistical results further support these findings: Experts (M = 4.90, SD = 0.14) rated the model significantly higher than students (M = 4.59, SD = 0.65), t = 4.350, df = 28.157, p < 0.001. The significant p-value indicates that the difference in evaluations was statistically meaningful rather than due to chance. Normal distribution and t-test results confirm the robustness of the analysis. In conclusion, the developed demonstration model proves to be an effective, practical, and highly acceptable instructional tool for improving students competency in electrical wiring installation.