Power Electronics Trainer Modular is an SSI India product in the Electronics category. Key specifications include SKU: PBB-E393A. TECHNICAL SPECIFICATIONS: Power Supplies. Operated on Mains power 230V, 50Hz +10% Digital Meters. Voltmeter/Ammeter Dual Range 20V/20mA. Ammeter Dual Range: 20mA/200mA. Voltmeter Dual Range: 20V/200V Components are mounted on the panels are.