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• Fluke 1503 is a compact insulation resistance tester offering 500 V and 1000 V test voltages, a wide resistance range up to 2000 MΩ, and built-in live circuit detection for safe residential and commercial testing

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FLUKE-1503 Insulation Resistance Meter

The Fluke 1503 Insulation Resistance Meter is a rugged and easy-to-use tool ideal for residential and commercial electricians. It supports insulation testing from 0.01 MΩ to 2000 MΩ using two selectable test voltages (500 V and 1000 V. The device includes live circuit detection that prevents testing when voltages exceed 30 V for added safety. With a built-in remote test probe, the 1503 simplifies repetitive testing and enhances user convenience. It also features AC/DC voltage measurement up to 600 V, low-ohms continuity testing with 200 mA, auto-discharge of capacitive voltage, and a large backlit display for better readability in all environments.

Key Features:

• Insulation Resistance Testing: Measures from 0.01 MΩ to 2000 MΩ using 500 V and 1000 V test voltages.
• Live Circuit Detection: Automatically disables insulation testing if terminal voltage exceeds 30 V.
• Continuity Testing: Provides lo-ohms testing with a 200 mA short-circuit current.
• AC/DC Voltage Measurement: Measures from 0.1 V to 600 V with ±(2% + 3 accuracy.
• Safety Rated: CAT IV 600 V overvoltage protection for enhanced operational safety.
• Remote Test Probe: Included probe allows easier operation in tight or repetitive test scenarios.
• Backlit Display: Large, clear screen for reliable readings even in dim workspaces.
• Battery Efficiency: Performs at least 1000 insulation tests or 2500 resistance tests on 4 AA batteries.

Technical Specifications:

• Insulation Resistance Range: 0.01 MΩ to 2000 MΩ
• Test Voltages: 500 V, 1000 V
• Insulation Accuracy: ±(1.5% + 5 to 2000 MΩ, ±(10% + 3 above 2000 MΩ
• AC/DC Voltage Range: 0.1 V to 600 V
• Earth Bond Resistance: 0.01 Ω to 20.00 kΩ
• Continuity Test Current: >200 mA
• Auto Discharge: <0.5 seconds for 1 µF
• Max Capacitive Load: Operable up to 1 µF
• Display: Large backlit LCD
• Power Supply: 4 x AA alkaline batteries (NEDA 15A or IEC LR6
• Battery Life: 1000 insulation tests or 2500 resistance tests
• IP Rating: IP40
• Operating Temp: -20°C to 55°C
• Size: 5.0 x 10.0 x 20.3 cm (1.97 x 3.94 x 8.00 in
• Weight: 550 g (1.2 lb
• Certifications: CSA, TUV, EN61010-1, CAT IV 600 V