Fluke 1664 FC

Fluke 1664 FC – Multifunction Installation Tester

Overview

The Fluke 1664 FC is designed for electricians who need efficient, safe, and fully featured verification of electrical installations. It includes automatic test sequencing, an insulation pretest that prevents damage to connected appliances, support for RCD type B with smooth direct current monitoring, and wireless sharing of results via smartphone. It is robust in build, with safety and regulatory compliance for demanding field environments.

Key Features

• Insulation Pretest to detect connected appliances and stop test

• Auto Test sequence of seven installation tests in one connection

• Support for RCD type B and RDC-DD for smooth DC currents in EV charging stations

• Loop and line impedance tests with high current loop mode for speed

• Prospective earth fault current and prospective short-circuit current calculation

• RCD trip current and trip time tests, including ramp tests

• Phase sequence indication

• Large, backlit display with clear symbols and wide viewing angle

• Memory for highest loop test value (Z-Max)

• Includes zero adapter to compensate test lead and mains cord resistance

Technical Specifications

• Model: 1664 FC

• AC and DC voltage measurement range: up to 500 V

• Voltage resolution: 0.1 V

• Voltage accuracy (45-66 Hz): 0.8% + 3 digits

• Input impedance: 360 kΩ

• Overload protection: 660 V rms

• Continuity testing (resistive loads only, autoranging): ranges of 20 Ω / 200 Ω / 2000 Ω; resolution 0.01 Ω / 0.1 Ω / 1 Ω; open circuit voltage > 4 V

• Insulation resistance test voltages: 50 V, 100 V, 250 V, 500 V, 1000 V

• Insulation resistance ranges and resolutions: up to 1000 MΩ in higher test voltages; resolutions down to 0.01 MΩ depending on voltage

• Loop and line impedance range: 10 Ω (high current milliohm mode), 20 Ω, 200 Ω, 2000 Ω; resolution down to 0.001 Ω

• Prospective earth fault current and prospective short-circuit current: up to 1000 A / 10 kA (50 kA in some cases) with resolution 1 A / 0.1 kA

• RCD types tested: AC, type A, type B, G, S; includes test currents and ramp modes

• Phase sequence indicator: for mains voltages between ~100-500 V

• Size (L × W × H): 10 × 25 × 12.5 cm

• Weight (with batteries): ~1.3 kg

• Power supply: 6 × AA type batteries

• Protection rating: IP-40

• Safety category: CAT III 500 V / CAT IV 300 V

• Standards compliance: EN/IEC 61010-1, EN/IEC 61010-2-034; Performance per EN61557-1 through EN61557-7 and EN61557-10

Applications

• Installation verification for domestic, commercial and industrial settings

• Testing EV charging stations and DC sensitive RCDs

• Certifying wiring safety including loop impedance, insulation, polarity, RCD trip parameters

• Field work where documenting and sharing test results matters

Why Choose the Fluke 1664 FC

• Auto Test sequence saves time and reduces risk of missing tests

• Insulation Pretest prevents accidental damage to connected devices

• Broad support for RCD type B and smooth DC modes for modern installation needs

• Wireless result sharing adds traceability and collaboration

Order Now

The Fluke 1664 FC is part of Fluke’s 1660 series installation testers. Available for purchase. Ships worldwide.

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply