[shortdesc] Insulation tester and True RMS multimeter, 500 V and 1000 V insulation test voltages, up to 600 MΩ insulation resistance, CAT IV 600 V safety rating, handheld diagnostic tool [/shortdesc] [properties] Model Fluke 1577 Product Type Insulation Multimeter Insulation Test Voltages 500 V, 1000 V Insulation Measurement Range 0.1 MOhm to 600 MOhm AC Voltage Range Up to 1000 V DC Voltage Range Up to 1000 V AC/DC Current Range Up to 400 mA Resistance Range 0.1 Ohm to 50 MOhm Safety Category CAT III 1000 V, CAT IV 600 V IP Rating IP40 Power Four AA alkaline batteries Battery Life Meter use: 1000 hours; at least 1000 insulation tests Size (H x W x L) 203 x 100 x 50 mm (with holster) Weight 624 g Operating Temperature -20 C to +55 C Storage Temperature -40 C to +60 C Operating Altitude 2000 m [/properties] [specifications] Voltage DC Maximum voltage 1000 V; Accuracy (0.2% + 2); Maximum resolution 0.001 V Voltage AC Maximum voltage 1000 V; Accuracy (2% + 3); Maximum resolution 0.1 mV Current DC Maximum 400 mA; Accuracy (1.0% + 2); Maximum resolution 0.01 mA Current AC Maximum 400 mA; Accuracy (2.0% + 2); Maximum resolution 0.01 mA Resistance Maximum resistance 50 MOhm; Accuracy (1.2% + 2); Maximum resolution 0.1 Ohm Insulation Test Current Minimum test current @ 1 kOhm/V: 1 mA Insulation Test Voltages 500 V, 1000 V Maximum Resistance per Test Voltage 600 MOhm (1000 V test) Maximum Resolution per Test Voltage 50 V: 0.01 MOhm; 100 V: 0.01 MOhm; 250 V: 0.1 MOhm; 500 V: 0.1 MOhm; 1000 V: 0.1 MOhm Accuracy per Test Voltage 50 V (3% + 5); 100 V (3% + 5); 250 V (1.5% + 5); 500 V (2.0% + 5); 1000 V (2.0% + 5) Relative Humidity 0-95% (10 C to 30 C); 0-75% (30 C to 40 C); 0-40% (40 C to 55 C) Safety Standards IEC 61010-1 Pollution Degree 2; IEC 61010-2-033: CAT IV 600V/CAT III 1000V [/specifications] [accesories] Included Remote probe; Test leads; Alligator clips; Hard case; Four AA alkaline batteries; Quick reference guide; CD ROM with manual Optional Fluke TPAK magnetic hanging system [/accesories] Dual-Function Electrical Testing for Advanced Diagnostics The Fluke 1577 Insulation Multimeter combines a professional insulation resistance tester with a full-featured True RMS digital multimeter in a single, compact handheld instrument. Designed for electricians and maintenance professionals, this versatile device enables both troubleshooting and preventative maintenance across motors, cables, generators, and switchgear. With insulation test voltages of 500 V and 1000 V and resistance measurement up to 600 MOhm, the Fluke 1577 provides accurate diagnostics while maintaining high safety standards. Its rugged design, large backlit display, and live circuit detection make it an essential tool for demanding industrial environments. Key Benefits & Features Two Tools in One: Integrates a digital insulation tester and a True RMS multimeter, eliminating the need for multiple instruments and improving efficiency. High-Voltage Insulation Testing: Provides selectable test voltages of 500 V and 1000 V with measurement capabilities from 0.1 MOhm to 600 MOhm. True RMS Measurement Accuracy: Ensures precise AC voltage and current readings even in noisy electrical environments with non-linear signals. Advanced User Protection: Built-in live circuit detection prevents insulation tests if voltage greater than 30 V is detected, increasing field safety. Field-Ready Design: Features a rugged utility hard case, auto power-off to save battery, and compatibility with the optional Fluke TPAK magnetic hanging system for hands-free use. Ideal Use Cases Industrial motor and generator insulation diagnostics Electrical installation and cable troubleshooting Preventative maintenance of power distribution systems Switchgear testing and electrical safety inspections Technical Specifications Insulation Test Voltages: 500 V, 1000 V Insulation Resistance Range: 0.1 MOhm to 600 MOhm AC/DC Voltage Measurement: Up to 1000 V AC/DC Current Measurement: Up to 400 mA Resistance Measurement: 0.1 Ohm to 50 MOhm Safety Rating: CAT IV 600 V / CAT III 1000 V Operating Temperature: -20 C to +55 C Dimensions: 203 x 100 x 50 mm Weight: 624 g Upgrade Your Electrical Testing Toolkit Today Choose the Fluke 1577 insulation multimeter for dependable diagnostics and professional-grade electrical testing. Order today.
