Fluke 1664FC Multifunction Tester 1000V Earth Resistance Measurement With USB

RS Stock No.:: 117-6682
Distrelec Article No.:: 300-60-474
Mfr. Part No.:: FLK-1664FC ITDK
Brand:: Fluke

Fluke 1664FC Multifunction Tester 1000V Earth Resistance Measurement With USB

Subtotal (1 unit)*

£2,071.00

(exc. VAT)

£2,485.20

(inc. VAT)

FREE delivery for orders over £60.00

In Stock

2 unit(s) ready to ship from another location
Plus 3 unit(s) shipping from 11 May 2026

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Units	Per unit
1 +	£2,071.00

*price indicative

RS Stock No.:: 117-6682
Distrelec Article No.:: 300-60-474
Mfr. Part No.:: FLK-1664FC ITDK
Brand:: Fluke

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Fluke
	Loop Impedance Test Type	Phase to Neutral, Phase to Earth
	Product Type	Multifunction Tester
	Automatic RCD Test	Yes
	RCD Ramp Test	Yes
	Model Number	1664FC
	Insulation Test Voltage	1000V
	Maximum Voltage Measurement	500V ac/dc
	Test Type	Phase Sequence Test, MOSFET, Resistance, Insulation Resistance, RCD Test, Miniature GPS, Continuity, Wiring Polarity, Frequency, Voltage
	Earth Resistance Measurement	Yes
	Downloadable Data	Yes
	Interface Type	USB
	Continuity Test Current	10mA
	RCD Test Type	Type S, Type G, AC
	Weight	1.3kg
	Length	100mm
	Remote Switch Mode	Yes
	Height	125mm
	Width	250mm
	Standards/Approvals	EN/IEC 610102034, CSA, EN/IEC 610101, CE
	IP Rating	IP40
	Test Standards	EN, IEC 61010-1, IEC 61010-2-034
	Safety Category Level	CAT IV, CAT III
	Power Source	Battery
	Safety Category Voltage	500V
	Display Type	LCD
	Battery Type	AA

	Select all
	Brand Fluke
	Loop Impedance Test Type Phase to Neutral, Phase to Earth
	Product Type Multifunction Tester
	Automatic RCD Test Yes
	RCD Ramp Test Yes
	Model Number 1664FC
	Insulation Test Voltage 1000V
	Maximum Voltage Measurement 500V ac/dc
	Test Type Phase Sequence Test, MOSFET, Resistance, Insulation Resistance, RCD Test, Miniature GPS, Continuity, Wiring Polarity, Frequency, Voltage
	Earth Resistance Measurement Yes
	Downloadable Data Yes
	Interface Type USB
	Continuity Test Current 10mA
	RCD Test Type Type S, Type G, AC
	Weight 1.3kg
	Length 100mm
	Remote Switch Mode Yes
	Height 125mm
	Width 250mm
	Standards/Approvals EN/IEC 610102034, CSA, EN/IEC 610101, CE
	IP Rating IP40
	Test Standards EN, IEC 61010-1, IEC 61010-2-034
	Safety Category Level CAT IV, CAT III
	Power Source Battery
	Safety Category Voltage 500V
	Display Type LCD
	Battery Type AA

RoHS Status: Exempt

COO (Country of Origin):: GB

Fluke Multifunction Tester, 500V Maximum Voltage Measurement, 1000V Insulation Test Voltage - FLK-1664FC ITDK

This multifunction tester is a portable electrical installation instrument designed for routine and diagnostic fieldwork in industrial and commercial environments. It performs essential measurements such as voltage, frequency, insulation resistance up to 1000V, earth resistance and loop impedance, and includes RCD testing modes to assess protective device performance. The unit is battery powered and offers a USB Interface for data transfer, suited to technicians working across automation, electronics, electrical and mechanical disciplines.

Features & Benefits

• Insulation test up to 1000V for high-voltage verification and safety assessment
• Continuity measurement with 1 mA test current for sensitive circuit checks
• RCD ramp and automatic sequences to determine trip level and timing
• Loop impedance phase to earth and phase to NEUTRAL for fault current calculation
• Prospective fault current computation to estimate PEFC/PSC values
• USB downloadable data for job reporting and traceable records

Applications

• Suitable for verifying wiring polarity and identifying broken NEUTRAL conductors
• Ideal for commissioning and periodic inspection of distribution circuits
• Used for testing RCD Type S, Type G and AC devices in installations
• Can be used to evaluate motor winding continuity during maintenance
• Used with site reports where earth resistance measurement and loop values are required

What supply does it use and how long is the instrument sealed against dust?

It runs on six AA cells and has IP40 sealing for indoor use where protection from large particles is required.

Which overvoltage categories does it support for on-site measurements?

The instrument meets CAT IV 300V and CAT III 500V overvoltage classifications for common installation environments.

How are RCD tripping characteristics measured during testing?

It performs tripping speed measurements and variable-current ramp tests across a range of currents with defined dwell times to establish trip current and timing.

Can it measure both insulation and loop resistance for fault calculations?

Yes, it combines insulation resistance measurements with loop and line impedance readings to compute prospective earth fault and short-circuit currents.

What accessory and data support is provided for field reporting?

The package includes a remote control probe and leads, a zero adapter for lead compensation, and downloadable results via USB for documentation.

Standards

IEC 60364

Supplied with

The Fluke 1664 FC comes with 6 x AA (LR6) cell batteries, CI600 hard carrying case, zero adapter, heavy-duty mains cord, test lead set, padded carrying/waist strap, quick reference guide, TP165X remote control probe & lead set (FTP used probes - UK only) and User's manual on CD-ROM.