Hioki IR4056-21 Insulation Resistance Tester 1000V Measurement Range Up to 4000MΩ

The Hioki IR4056-21 Insulation Resistance Tester is a compact and highly efficient instrument designed for quick and precise insulation testing of electrical installations and equipment. Capable of measuring insulation resistance up to 1000V with a range of up to 4000MΩ, the IR4056-21 is ideal for use in residential, commercial, and industrial settings. It features a clear digital display with an analog bar graph for easy visualization of readings, allowing for fast assessment of insulation integrity. With its robust design, automatic discharge function, and user-friendly controls, the IR4056-21 ensures safe, reliable, and efficient insulation testing in any environment.

Key Features:

• Wide Test Voltage Range: Offers five selectable test voltages—50V, 125V, 250V, 500V, and 1000V—providing versatility for various insulation testing requirements.
• High Insulation Resistance Measurement: Measures resistance up to 4000MΩ, making it suitable for a wide range of applications, including wiring, motors, and industrial equipment.
• Digital Display with Analog Bar Graph: Combines a clear digital readout with an analog bar graph, allowing for quick interpretation of measurements.
• Fast Response Time: Provides rapid readings, enabling users to efficiently perform insulation tests and move on to the next measurement.
• Automatic Discharge Function: Ensures safety by automatically discharging residual voltage after testing, protecting users from potential shocks.
• Durable and Water-Resistant Design: Rated IP40 for dust and water resistance, making it suitable for use in various environments, including outdoor testing.
• Data Hold Function: Allows users to freeze the displayed reading, making it easier to record and analyze data.
• Battery-Powered Operation: Operates on standard AA batteries, providing long-lasting power for extended testing sessions.

Specifications:

• Test Voltage Ranges: 50V, 125V, 250V, 500V, 1000V.
• Insulation Resistance Range: Up to 4000MΩ.
• Accuracy: ±2% of reading.
• Display Type: Digital readout with an analog bar graph for easy viewing.
• Discharge Function: Yes, automatic discharge after measurement.
• Safety Rating: CAT III 600V, CAT IV 300V.
• IP Rating: IP40 for dust and water resistance.
• Power Supply: 4 x AA batteries (included).
• Operating Temperature: -10°C to 50°C.
• Dimensions: Compact design for easy portability.

Box Includes:

• Hioki IR4056-21 Insulation Resistance Tester
• Test Leads with Alligator Clips
• 4 x AA Batteries
• User Manual
• Carrying Case

Applications:

• Electrical Safety Inspections: Ideal for verifying insulation integrity in residential, commercial, and industrial installations, ensuring compliance with safety standards.
• Maintenance of Motors and Transformers: Suitable for testing insulation resistance in motors, transformers, and generators to prevent electrical failures.
• Wiring System Testing: Perfect for checking the insulation quality of wiring systems during new installations or routine inspections.
• Industrial Equipment Diagnostics: Ensures that the insulation of machinery and control panels meets safety requirements, helping to avoid potential electrical hazards.
• Field Service and Repair: Compact and lightweight, making it perfect for technicians who need a portable solution for on-site insulation testing.