The Triplett MG430 Digital Insulation Tester is a professional electrical testing instrument designed for electricians, industrial maintenance technicians, HVAC professionals, and electrical contractors who need to verify insulation integrity and troubleshoot electrical systems safely and accurately. Engineered for insulation resistance testing on motors, transformers, switchgear, wiring, and electrical installations, the MG430 provides dependable performance for preventative maintenance and diagnostic applications.

Capable of measuring insulation resistance up to 2000MΩ using selectable 250V, 500V, and 1000V test voltages, the Triplett MG430 is ideal for testing insulation breakdown and verifying electrical safety. Additional functions including AC/DC voltage measurement, low resistance testing, continuity testing, Data Hold, and hands-free Lock Power operation make this a versatile tool for commercial and industrial electrical work. The dual backlit LCD display and CAT III 1000V safety rating further enhance usability and protection in demanding field environments.

• Measures insulation resistance up to 2000MΩ
• Selectable insulation test voltages: 250V, 500V, and 1000V
• Measures AC/DC voltage and low resistance (continuity)
• Lock Power feature allows hands-free testing operation
• Dual backlit LCD display for improved visibility in low-light environments
• Data Hold function freezes readings on the display
• Low battery and overrange indication
• Auto power-off feature conserves battery life
• Ideal for testing motors, transformers, wiring, switchgear, and electrical installations
• Suitable for preventative maintenance and electrical troubleshooting applications
• CAT III 1000V safety rated

• Manufacturer: Triplett
• Model: MG430
• UPC: 614395002275
• Product Type: Digital Insulation Tester
• Insulation Resistance Range: Up to 2000MΩ
• Test Voltages: 250V, 500V, 1000V
• Additional Measurements: AC/DC Voltage, Low Resistance, Continuity
• Display Type: Dual Backlit LCD
• Functions: Data Hold, Lock Power, Auto Power-Off
• Indicators: Low Battery and Overrange Indication
• Safety Rating: CAT III 1000V
• Power Source: (6) AA Batteries
• Country of Origin: China
• ECCN: EAR99
• HTS Code: 9030.33.3800
• Shipping Weight: 3.15 lbs.
• Dimensions: 12" L x 3" W x 9.25" H
• Package Type: Box
• Includes: Test leads with alligator clip, (6) AA batteries, and carrying case
• Warranty: 1 Year