The MT474 690V AC/DC Voltage Tester by Major Tech is a highly versatile and durable voltage testing instrument, designed to meet the needs of electricians working in both residential and industrial environments. This IP64-rated tester provides AC/DC voltage detection, phase rotation indication, polarity testing, continuity measurement, and low impedance testing, making it an essential tool for electrical professionals.

Key Features:

• Wide Voltage Range: Detects AC and DC voltages from 12V to 690V, covering a broad range of applications.
• LED Voltage Display: Red LED indicators incrementally display voltage levels, ensuring quick and accurate readings.
• Polarity Detection: Indicates positive and negative DC polarity for quick identification of live circuits.
• Phase Rotation Indication: Identifies the rotational direction of three-phase systems, displaying L = anticlockwise and R = clockwise for easy phase verification.
• Single-Pole Phase Testing: Enables phase presence detection using just one probe, increasing usability in complex circuits.
• Low Impedance Test: Introduces a basic load of approximately 6kΩ at 690V, helping to eliminate ghost voltages and ensure accurate measurements.
• Continuity Testing: Measures continuity up to 200kΩ, assisting in circuit diagnostics.
• Built-in LED Flashlight: Provides illumination for working in dimly lit environments, improving safety and efficiency.
• Automatic Activation: No need to switch on the tester manually – it activates automatically when voltage is applied.
• RCD Trip Testing: Tests 10mA and 30mA residual current devices (RCDs), ensuring proper operation of safety switches.
• Durable Double Injection Housing: IP64-rated, ensuring resistance to dust and water ingress for robust field use.
• CAT IV 600V & CAT III 1000V Safety Rating: Complies with IEC 61010-1 standards for high-voltage applications, ensuring safety during use.

Specifications:

• Model Number: MT474
• DC Voltage Range: 12V - 690V
• AC Voltage Range: 12V - 690V
• Continuity Testing: 0 - 400kΩ
• Frequency: 50/60Hz
• RCD Trip Test: 10mA / 30mA
• Input Impedance: <200kΩ
• Response Time: 0.1 seconds
• Display Type: 14 LED indicators
• Dimensions: 240 x 78 x 40mm
• Weight: 237g

Applications:

• Voltage Testing: Quickly determine the presence and magnitude of AC and DC voltages in circuits and electrical systems.
• Phase Rotation Testing: Ensures proper connection of three-phase motors and power systems, preventing phase reversal issues.
• Polarity Checking: Identifies DC polarity to assist with correct wiring configurations.
• RCD Testing: Verifies the functionality of residual current devices (safety switches) to ensure user protection.
• Continuity Testing: Helps diagnose circuit faults and broken connections up to 400kΩ resistance.
• Low Impedance Testing: Eliminates stray voltages, providing more accurate voltage readings in troubleshooting applications.
• Field and Industrial Use: Suitable for electricians, maintenance personnel, and industrial technicians working in a variety of electrical environments.

The MT474 690V AC/DC Voltage Tester is a rugged, high-performance tool ideal for electricians, technicians, and engineers who require fast, accurate, and safe voltage testing, phase identification, and circuit diagnostics. Its comprehensive feature set ensures reliability in both residential and industrial electrical environments.