Professional Insulation Testing and Electrical Troubleshooting
The Fluke 1577 Insulation Multimeter is designed for professional electricians and electrical maintenance technicians who need both insulation testing and digital multimeter functions in one rugged handheld instrument. Combining a True RMS digital multimeter with an insulation resistance tester reduces the need to carry multiple tools, making it ideal for testing motors, switchgear, generators, cables and electrical installations.
Accurate Testing for Preventative Maintenance
The Fluke 1577 performs insulation resistance testing at 500 V and 1000 V with a measurement range up to 600 MΩ, while also providing accurate AC/DC voltage, current, resistance, continuity and millivolt measurements. Live circuit detection prevents insulation testing when voltages above 30 V are present, and automatic capacitive discharge enhances user safety during testing.
Built for Everyday Electrical Work
With True RMS measurements, a large backlit display and CAT III 1000 V / CAT IV 600 V safety rating, the Fluke 1577 is built for demanding electrical environments. Why choose the Fluke 1577 for insulation testing? It combines professional insulation testing and multimeter functionality into one reliable instrument, helping electricians diagnose faults faster while reducing the amount of equipment they need to carry.
Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.
Why choose Instrotech for your electrical test equipment?
With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:
Free UK shipping on all orders
Access to our knowledgeable technical support team
Available calibration services to maintain safety compliance
A 90-day money-back guarantee for complete peace of mind
We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.
