Which types of RCD s can this installation tester verify?

The Fluke FLK-1663 tests type A, AC, and smooth DC sensitive type B residual current devices (RCD s).

Which insulation test voltages are available on this model?

You can choose between 5 insulation test voltages: 50V, 100V, 250V, 500V, and 1000V.

Can this instrument measure earth resistance?

Yes, this multifunction tester features built-in capability for measuring earth resistance.

Which accessories are included in the scope of delivery?

It includes 6 AA batteries, C1600 hard case, zero adapter, mains cord, test leads, strap, and TP165X probe.

What is the benefit of the included TP165X remote control probe?

The remote test button on the probe lets you trigger measurements directly without touching the tester.

FLUKE 1663 multifunctional installation tester - 4546980

Name: FLUKE 1663 multifunctional installation tester - 4546980
Brand: FLUKE
SKU: 02953726
Price: 1964.89 EUR
Availability: PreOrder

Supplier number: FLUKE 4546980 | EAN 0095969766845

Recommended Retail Price €2,320.11

1,964.89 tax incl.

€1,623.88 excl. VAT (incl. all environmental contributions)

On order: delivered from 02/11/2026

Delivery by DHL

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Accurate electrical verification with Fluke

Practical benefits

Complete installation testing capability: You verify insulation resistance, loop impedance, and type B residual current devices in full compliance with safety standards.
Faster automated testing workflows: Automated sequences and switchable autostart eliminate repetitive connection steps and significantly speed up your routine verification tasks.
Convenient single-handed operation: The included remote control probe allows you to trigger measurements directly without looking away from the contact points.

In a nutshell

The right choise for

With the Fluke FLK-1663 multifunction installation tester, you verify electrical installations quickly and reliably in full compliance with safety standards. This instrument tests insulation resistance across 5 voltages from 50V to 1000V, earth ground resistance, and smooth DC-sensitive Type b RCDs. Automated test sequences and switchable autostart streamline your routine checks and minimize connection errors. The included TP165X remote control probe lets you trigger tests directly at the contact point, while the zero adapter eliminates test lead resistance for accurate readings. Supplied in a rugged C1600 hard case with standard test leads, heavy-duty mains cord, padded strap, and 6 aa batteries, it provides everything needed for thorough electrical commissioning and periodic inspection.

Product information FAQ

€1,964.89

tax incl.

Scope of delivery

6 AA batteries (IEC LR6)
C1600 carrying case
Zeroing function
Heavy-duty power cord for one input
STD standard measurement lead set
Padded carrying and waist strap
Quick guide
TP165X probe with remote control and cord
User guide on CD-ROM

Product description:

The ideal tester for hard-working professionals.
This instrument is ideal for professional users ? full functionality, advanced measurement capabilities, yet easy to use.
Intuitive to operate and easy to master by field technicians of all levels.

Key features

The 1663 puts more power in your hands by testing quickly and efficiently according to all local regulations.
Devices inadvertently connected to the system being tested are protected.
Moreover, the 1663 makes it easy to share test results via your smartphone.

Measurement functions

Passage of inputs L-N, N-PE (phase-neutral, neutral-earth)
Testing of RCCBs sensitive to smoothed DC voltage (type B)
Earth resistance
Voltage and frequency
Check of wiring polarity, recognises broken N-wires
Insulation resistance
Pass-through and resistance
Measure motor windings with continuity tests
Loop and line resistance
Expected earth fault current (PEFC/IK)
Expected short-circuit current (PSC/IK)
RCCB tripping time
RCCB trip value (rise test)
Measure tripping time and current for type A and AC RCCBs in one test
Variable current of RCCBs
Automatic test cycle for RCCBs
Phase sequence indication

Memory interface

Z-max memory
Memory
Computer interface (if used with optional FlukeView and Fluke DMS software)
Time and date (when used with FlukeView software)

Brand FLUKE
02953726
EAN 0095969766845
Supplier number FLUKE 4546980

Frequently asked questions about this product

Answered by specialists

Which types of RCD s can this installation tester verify?: The Fluke FLK-1663 tests type A, AC, and smooth DC sensitive type B residual current devices (RCD s).
Which insulation test voltages are available on this model?: You can choose between 5 insulation test voltages: 50V, 100V, 250V, 500V, and 1000V.
Can this instrument measure earth resistance?: Yes, this multifunction tester features built-in capability for measuring earth resistance.
Which accessories are included in the scope of delivery?: It includes 6 AA batteries, C1600 hard case, zero adapter, mains cord, test leads, strap, and TP165X probe.
What is the benefit of the included TP165X remote control probe?: The remote test button on the probe lets you trigger measurements directly without touching the tester.