Fluke 1664FC Multifunction Tester (EVSE version)

SKU: FLUKE1664MFT
  • True-RMS AC voltage, resistance, loop and line impedance testing
  • Save time with auto-test and simultaneous testing across multiple functions
  • Integration with Fluke Connect & Fluke Cloud, share data online
More Info
Due to ship mid-late November 2026
Choose Your Free Gift

PROMOTION: Spend £100 (ex VAT) or more on any qualified Fluke products and claim FREE Tools From Fluke!
[Click here to learn more] Offer valid from 1st September to 31st December 2026.

Fluke 1664FC Multifunction Tester (EVSE version)

The Fluke 1664FC Multifunction Tester (EVSE version) is a safe and efficient electrical testing tool. This unit can read True-RMS AC voltage, resistance, loop and line impedance, tripping speed, prospective earth fault current, earth resistance and RCD/FI tripping current. Convenience has been considered in the design of this tester, with a large and easy-to-read LCD display and time-saving features such as auto-testing for line impedance, RCD trigger test and insulation tests.

The Fluke 1664FC when used alongside an adaptor such as the Fluke FEV300 (available separately) allows for testing of EV charging stations DC protection devices using the RCD type B (smooth DC Currents) VAR mode. This generator tests currents for RCD type A-EV or RDC-DD acc can test according to IEC 62955 (6/60/200 mA and ramp <2 to 6 mA ramp) safety standards. This allows the operator to quickly and easily perform additional testing of 6mA DC RCD monitors on charging points.

A simple dial system forms this unit’s user interface, avoiding the often confusing menu-driven systems of many multifunction testers. Other time-saving features include Z-Max memory for loop tests to support easy evaluation of highest loop test value. The 1664FC also possesses some impressive safety features, with its CAT III 500V overvoltage protection and Earth Volt Touchpad able to detect raised earth voltages (>50 V), highlighting potentially dangerous situations.

Fluke provides compatibility with their Fluke Connect technology with this tester, allowing users to connect through the Fluke Connect App and stream results directly to any Apple or Android mobile device. In addition, the data can be uploaded and stored within the FlukeCloud database, available to team members and colleagues around the world. The 1664FC comes complete with a padded beck strap, test leads, probe set, a remote probe, batteries, mains cable, calibration certificate and hard carry case.

FLUKE 1660 Series Multifunction Testers:

Measurement Function

FLUKE 1662 FLUKE 1663 FLUKE 1664
Installation PreTest Safety Function     ✔
Installation at L-N, N-PE Inputs     ✔
Auto Test Sequence     ✔
Loop and Line Resistance–mΩ Resolution     ✔
Continuity at L-N, N-PE Inputs   ✔ ✔
Test Smooth DC Sensitive RCDs (Type B/B+)   ✔ ✔
Earth Resistance   ✔ ✔
Voltage (TRMS) and Frequency ✔ ✔ ✔
Wiring Polarity Checker, Detects Broken PE and N Wires ✔ ✔ ✔
Insulation Resistance ✔ ✔ ✔
Continuity and Resistance ✔ ✔ ✔
Measure motor windings with Continuity Test (at 10 mA) ✔ ✔ ✔
Loop and Line Resistance ✔ ✔ ✔
Prospective Earth Fault Current (PEFC/IK) ✔ ✔ ✔
Prospective Short-Circuit Current (PSC/UK) ✔ ✔ ✔
RCD Trip Time ✔ ✔ ✔
RCD Trip Current (Ramp Test) ✔ ✔ ✔
Measures Trip Time and Current for RCD Type A and AC in One Test ✔ ✔ ✔
RCD Variable Current ✔ ✔ ✔
Automatic RCD Test Sequence ✔ ✔ ✔
Phase Sequence Test ✔ ✔ ✔

Other Features

     
Fluke Connect Compatibility     ✔
ShareLive Calling     ✔
Fluke Cloud Storage     ✔
On/off Switchable Auto-start for RCD and Loop Test ✔ ✔ ✔
Self-Test ✔ ✔ ✔
Illuminated Display ✔ ✔ ✔

Memory/Interface

     
Z Max Memory   ✔ ✔
Memory ✔ ✔ ✔
IR-USB and BLE Interface (When Used WIth Optional Fluke DMS and FVF Software)   IR-USB IR-USB/BLE

Key Features

  • Insulation test voltages of 50V, 100V, 250V, 500V and 1000V DC
  • Measurement of AC voltage, insulation resistance, loop and line impedance (ZI)
  • Measurement of prospective earth fault current, tripping speed, earth resistance, and RCD/FI tripping current
  • Continuity testing, RCD testing, and ramp testing
  • Time-saving auto-test function
  • Insulation PreTest detects appliances to avoid damage
  • Earth Volt Touchpad detects high earth voltage
  • Cat III to 500V overvoltage protection rating/li>
  • Fluke Connect and FlukeCloud connectivity
  • Impressive range of additions including strap, test leads, calibration certificate and carry case
  • Lightweight unit: 1.3kg

What's In The Box?

  • Fluke 1664 FC Multifunction Installation Tester
  • CD and instruction manual for Fluke 1664 FC Multifunction Installation Tester
  • 6 x AA batteries
  • C1600 hard carry case
  • Zero adapter
  • Heavy duty mains power cord
  • Standard test lead set with crocodile clips
  • Remote probe
  • Fluke FTP fused test probe set
  • Padded carrying waist and neck strap
  • 1664FC Quick reference guide
  • Fluke calibration certificate
Specification

AC voltage measurement

  • Range: 500V
  • Resolution: 0.1V
  • Accuracy 45Hz - 66Hz: 0.8% + 3 counts
  • Input impedance: 360kΩ
  • Overload protection: 660V rms

Continuity testing RLO

  • Range (autoranging): 20Ω / 200Ω / 2000Ω
  • Resolution: 0.01Ω / 0.1Ω / 1Ω
  • Open circuit voltage: >4V

Insulation resistance measurement

  • Test voltages:  50-100-250-500-1000V
  • Accuracy of tTest voltage (at rated test current): +10%, -0%
  • Test voltage: 50V; 100V; 250V; 500V; 1000V
  • Insulation resistance range: 20 to 50MΩ; 20 to 100MΩ; 20 to 200MΩ; 20 to 200 to 500MΩ; 20 to 200 to 1000MΩ
  • Resolution: 0.01MΩ / 0.1MΩ; 0.01MΩ / 0.1MΩ; 0.01MΩ / 0.1MΩ; 0.01MΩ / 0.1MΩ / 1MΩ; 0.01MΩ / 0.1MΩ / 1MΩ
  • Test current: 1mA @ 50kΩ; 1mA @ 100kΩ; 1mA @ 250kΩ; 1mA @ 500kΩ; 1mA @ 1MΩ

Loop and line impedance (ZI)

  • Range: 10Ω / 0.001Ω / High current mΩ mode
  • Resolution: 0.01Ω / 0.1Ω / 1Ω

Prospective earth fault current, PSC test

  • Range: 1000A / 10kA (50kA)
  • Resolution: 1A / 0.1kA
  • Computation: Prospective earth fault current (PEFC) or prospective short current (PSC) calculated by splitting actual mains voltage by measured loop (L-PE) resistance or line (L-N) resistance respectively

RCD testing, RCD types tested

  • RCD type: AC1; G2, S3
  • Model 1664: A, AC, B5, S

Notes: 1Responds to AC; 2General no delay; 3Time delay; 4Responds to pulsed signal; 5Responds to smooth DC signal.

Tripping speed test (ΔT)

  • Current settings1: 10-30-100-300-500-1000mA - VAR; 10-30-100mA
  • Multiplier: x0.5, x 1; x5
  • Measurement range: 310ms, 50ms (RCD Type G); 510ms, 160ms (RCD Type)

Notes: 1000mA with type AC only, 700mA maximum type A in VAR mode, VAR mode not available for type B

RCD/FI-Tripping Current Measurement/Ramp Test (IΔN)

  • Current range: 30% to 110% of RCD rated current1
  • Step size: 10% of IΔN2
  • Dwell time: 300ms/step (Type G); 500ms/step (Type S)
  • Measurement accuracy: ±5%
  • Specified trip current ranges (EN 61008-1): 50% to 100% for Type AC; 35% to 140% for Type A (>10 mA); 35% to 200% for Type A (≤10 mA); 50% to 200% for Type B; ²5% for Type B

Notes: ¹30% to 150% for Type A IΔN > 10 mA; 30% to 210% for Type A IΔN = 10 mA; 20% to 210% for Type B

Earth Resistance Test (RE)

  • Range: 200Ω / 2000Ω
  • Resolution: 0.1Ω / 1Ω
  • Frequency: 128Hz
  • Output voltage: 25V

General

  • Size (L x W x H): 10 x 25 x 12.5cm
  • Weight (incl. batteries): 1.3kg
  • Batteries:  6 x AA
  • Sealing: IP-40
  • Safety: Meets requirements for EN61010-1 Ed 2.0 (2001-02), UL61010, ANSI/ISA –s82.02.01 2000 and CAN/CSA c22.2 No. 1010 2nd edition
  • Overvoltage: Cat III to 500V; Cat IV to 300V
  • Performance: EN61557-1 to EN61557-7 Second Edition and EN61557-10 Second Edition

Fluke Connect

  • Fluke connect is compatible with operating systems iOS 8 and above or on Android 4.4.x or above
Label Type Size Download
pdf Fluke 1660 Series Datasheet pdf 1 MB Download
Kit Option
Fluke 1664FC Multifunction EVSE Test Kit
£1,579.00
Due to ship mid-late November 2026

Please see our terms and conditions for full details of TM Care & Protect.

Everything you’re likely to require for the next 3 or 5 years:

✅ Annual calibrations included
No further calibration costs for either 3 or 5 years

✅ Free collection and return for annual calibration
No hidden postage costs when it’s time for calibration

✅ ‘Zero-Downtime’ for the life of your care plan
Free loan equipment should your purchase ever need sending away for repair

✅ Anti-theft protection 
Each care plan includes a SmartTrace Forensic Marking kit that acts as a deterrent for your test equipment and other tools

✅ Instrument cleaning kit
Cleaning kit included with each TM Care & Protect plan

Our hope is that TM Care & Protect will bolster our commitment to support you throughout your journey with us, providing you peace of mind from the hassles of annual servicing, potential tool theft and loss of earnings.

Ensures complete reliability, minimised downtime and peace of mind. TM Care & Protect packages include:

✅ Annual Calibration
No further calibration costs for up to 5 years.

✅ Zero Unplanned Downtime
In case of any unforeseen repairs, we provide FREE loan instruments so you can continue working.

✅ Theft Deterrent Kit
Each care plan includes a SmartTrace forensic marking kit: The UK's most powerful theft deterrent. Use on your test equipment, van and tools.

✅ No Shipping Cost
Includes collection and return deliveries when it's time for calibration.

✅ Instrument Cleaning Kit
Avoid preventable issues by keeping your test equipment clean.

Our hope is that TM Care & Protect will bolster our commitment to support you throughout your journey with us, providing you peace of mind from the hassles of annual servicing, potential tool theft and loss of earnings.

Please see our terms and conditions for full details of TM Care & Protect.