AI Mode All Images Videos Forums Short videos Maps News Web Books Finance 9 sites The RISH Master 3428 is a panel-mounted digital Multi-Function Meter (MFM) manufactured by Rishabh Instruments. It is designed to measure, monitor, and display important electrical parameters in three-phase systems. Scribd +2 Core Technical Specifications Form Factor: Standard 96 x 96 mm DIN quadratic panel mount enclosure. Input Voltage: 3-Phase, 415V Line-to-Line (L-L). Input Current: 5A / 1A secondary configuration via Current Transformers (CT). Frequency Range: 45 Hz to 65 Hz. Accuracy Class: Available in standard variants such as Class 1.0 or high-precision Class 0.2. Auxiliary Power Supply: Usually requires a 230V AC supply to power the unit. Communication Interface: Includes an optional RS485 Modbus output for remote data monitoring and automation