The Major Tech MT930 Phase Rotation Meter is a compact and highly accurate device designed to detect phase sequence and phase presence in three-phase electrical systems. Featuring a large LCD display, this tester provides clear visual indicators for phase rotation direction and open phase detection, making it an essential tool for electricians and technicians working with industrial power systems.

Key Features:

• Phase Rotation Indication: Displays clockwise (R) or anti-clockwise (L) rotation using clear LCD symbols and directional arrows.
• Three-Phase Indication: Simultaneously detects phase presence and sequence, ensuring proper wiring in three-phase systems.
• Wide Voltage Range: Operates on AC voltages from 40V to 850V, making it suitable for industrial and commercial applications.
• Broad Frequency Detection: Works on frequencies ranging from 15Hz to 400Hz, accommodating various power system types.
• Large LCD Display: Provides a clear, easy-to-read display for quick identification of phase sequence and open phase conditions.
• Durable, Rugged Design: Encased in a double-moulded rubber housing (IP40-rated) for added durability and protection in demanding environments.
• Small, Lightweight, and Portable: Compact design allows for easy transport and convenient use in the field.
• Large Crocodile Clips: 20mm jaw opening ensures a secure connection to busbars, terminals, and conductors of various sizes.

Specifications:

• Model Number: MT930
• Voltage Range: 40V - 850V AC
• Crocodile Clip Diameter: 20mm
• Detection Mode: LCD indication
• Frequency Range: 15Hz - 400Hz
• Phase Rotation Indication: Clockwise (R) / Anti-clockwise (L)
• Visual Indication: Large LCD screen with clear graphical indicators
• Terminal Colors: Red, Yellow, Blue (corresponding to three-phase connections)
• Housing Material: IP40-rated double-moulded rubber casing
• Battery Type: 9V battery (included)
• Dimensions: 135 x 75 x 31mm
• Weight: 135.6g
• Safety Ratings:
  • CAT IV 600V
  • CAT III 1000V (Compliant with IEC 61010-1 safety standards)

Applications:

• Phase Rotation Testing: Ensures correct motor rotation to prevent damage to three-phase motors and industrial equipment.
• Electrical Panel Wiring Verification: Identifies open phases and incorrect wiring in distribution boards and electrical panels.
• Industrial Power Systems: Used in factories, power plants, and substations to check power system integrity.
• HVAC and Pump Systems: Ensures proper installation of three-phase pumps and HVAC compressors.
• Troubleshooting Power Systems: Helps electricians diagnose incorrect phase sequencing and missing phases quickly and accurately.

The Major Tech MT930 Phase Rotation Meter is an essential tool for electricians, maintenance personnel, and industrial technicians, offering quick, accurate, and reliable phase sequence testing to ensure the safe and efficient operation of three-phase electrical systems.