The MM3-5A+ Three-Phase Digital Multimeter is the first product in Borna Electronics’ Imperial Series, designed for accurate measurement and display of voltage, current, and frequency in three-phase electrical networks. The device features three current displays and one voltage/frequency display, complemented by an integrated bargraph for enhanced visualization of system conditions.

As the first Iranian-made digital multimeter with a built-in bargraph display, the MM3-5A+ combines True RMS measurement technology, advanced monitoring functions, and a compact short-depth design. Its reduced installation depth makes it particularly suitable for modern switchboards and space-constrained electrical panels.

Features

• High-accuracy measurement
• Selectable fixed or rotating voltage display modes
• Displays and records maximum and minimum measured phase and line voltages
• Programmable CT ratio up to 8000 A
• Digital calibration for CT error compensation (individually for each phase)
• Displays and records maximum current for each phase
• Overcurrent alarm indication based on user-defined settings
• Bargraph display of Phase 1, Phase 2, Phase 3, or average current
• True RMS voltage measurement
• True RMS current measurement
• Memory retention of all settings and recorded values during power interruptions
• Compact short-depth design for easy installation in small panels

Technical Specifications