products POWER TRANSFORMERT The design is totally computerized where in house software has been developed for accurate and fast designing. It is manufactured and tested with high standards. TSTL is reputed for quality and reliability all over Bangladesh. Technical Specifications Frequency: 50-60 HzInsulation: Thermo-plastic casingRated Continuous Thermal Current: 1.2 InSecondary Rated Current: 1A or 5A download details