Fluke FLK-1663 UK Installation Tester W/Rcd Type B Uk

The Fluke FLK-1663 UK Installation Tester is a comprehensive handheld instrument designed for electrical professionals who need to verify installation safety and RCD functionality in modern power systems. With its ability to test RCD Type B, it provides essential protection against both alternating and pulsed direct fault currents, making it ideal for complex installations where standard AC-type devices are insufficient. The instrument combines multiple test functions — insulation resistance, loop impedance, earth resistance, and phase sequence — into a single rugged unit, reducing the need for multiple devices on site and streamlining the certification process for domestic and industrial panels.

Fluke FLK-1663 UK Key Features

This Fluke installation tester delivers precise measurement across a wide range of electrical parameters, ensuring compliance with installation standards. Its autoranging capability on resistance and voltage functions, combined with high-resolution displays, allows users to quickly identify faults and verify that protective devices will operate correctly under fault conditions.

• AC voltage measurement up to 500 V with 0.1 V resolution
• Insulation resistance test voltages from 50 V to 1000 V
• RCD Type AC, A, G, and S testing with tripping speed analysis
• Loop and line impedance measurement for prospective fault current calculation
• Earth resistance measurement 200 Ω and 2000 Ω ranges
• Phase sequence indication for three-phase system verification
• Safety rated 660 V rms with IP-40 dust and splash protection

Who Needs the Fluke FLK-1663 UK?

Electrical contractors and maintenance engineers will find the Fluke FLK-1663 UK indispensable for periodic inspection and testing of electrical installations. The device is specifically designed for professionals who must certify that RCDs trip at the correct levels to protect people and property. Facilities managers responsible for building services will appreciate the ability to quickly verify earth loop impedance and ensure that prospective short circuit currents are within design limits, reducing downtime during fault analysis.

Electricians performing domestic rewiring or commercial fit-outs will benefit from the integrated phase sequence indication, which confirms correct L-N-L ordering before energising new circuits. The earth resistance test function is vital for verifying grounding system integrity, particularly in installations with multiple earth electrodes where resistance values can vary significantly. By consolidating these tests into one instrument, the FLK-1663 UK reduces equipment costs and simplifies the testing workflow for teams that need to complete multiple verification steps on a single visit.

Fluke FLK-1663 UK Applications

The Fluke FLK-1663 UK is ideally suited for testing final circuits in residential distribution boards, where Type A and Type AC RCDs are common, but the Type B capability ensures future-proofing for installations incorporating sensitive electronic equipment or photovoltaic systems. In industrial environments, the instrument verifies that motor protection RDs and emergency lighting circuits trip correctly, preventing nuisance operations that could halt production. The loop impedance function is essential for confirming that protective devices will operate within the required time, protecting cables from overheating during fault conditions.

For renewable energy installations, the phase sequence indication and insulation resistance testing ensure that inverter and battery system connections are correct and that insulation degradation is detected before it leads to catastrophic failure. The RCD tripping speed test is particularly valuable in critical care areas and data centres, where even a delayed trip could result in equipment damage or safety risks. Municipal infrastructure projects also benefit from the earth resistance test, which verifies that street lighting and traction power systems have adequate grounding to protect the public and equipment.

Why Buy Fluke FLK-1663 UK from mme-ae?

When you purchase the Fluke FLK-1663 UK from MME, you are investing in a genuine Fluke instrument backed by local technical support and calibration services. Mohammad Mahdi Electronics ensures that every unit shipped from our warehouse meets Fluke’s factory specifications, so you can rely on accurate readings for your most critical testing tasks. Our team is available to advise on the correct test procedures for your specific installation type, helping you get the most from the instrument’s extensive functionality from day one.

We understand that electrical testing equipment represents a significant investment, which is why we focus on providing genuine products with full warranty coverage and prompt delivery across the UAE. By choosing MME for your Fluke FLK-1663 UK purchase, you gain access to a stockist that understands the local electrical regulations and the specific challenges faced by technicians working in the region’s climate and infrastructure projects.

For ongoing maintenance and compliance verification, the Fluke FLK-1663 UK offers reliable performance day after day. Its robust construction and intuitive interface mean that even complex tests can be performed quickly and with confidence, reducing the time spent on each site visit. The battery operation with six AA cells ensures the instrument is ready for use in remote locations without access to mains power, while the IP-40 rating provides protection against solid objects and accidental splashes in the workshop environment.

Contact MME today to discuss your Fluke FLK-1663 UK requirements or to arrange a demonstration of the instrument’s capabilities. Our knowledgeable staff can help you configure the tester for your specific application, whether you are certifying a new installation, performing routine maintenance, or troubleshooting persistent fault conditions. We are committed to providing the right testing solution for your business, supported by the reputation and reliability that Fluke instruments are known for worldwide.

Fluke FLK-1663 UK Specifications

AC voltage measurement
Range	500 V
Resolution	0.1 V
Accuracy 45 Hz – 66 Hz	0.8% + 3
Input impedance	360 kΩ
Overload protection	660 V rms
Continuity testing (RLO)
Range (autoranging)	20 Ω / 200 Ω / 2000 Ω
Resolution	0.01 Ω / 0.1 Ω / 1 Ω
Open Circuit Voltage	>4 V
Insulation resistance measurement (RISO)
Test voltages	50-100-250-500-1000 V
Accuracy of tTest voltage (at rated test current)	+10%, -0%
Test voltage	50 V 100 V 250 V 500 V 1000 V
Insulation resistance range	20 MΩ /50 MΩ 20 MΩ / 100 MΩ 20 MΩ / 200 MΩ 20 MΩ / 200 MΩ / 500 MΩ 20 MΩ / 200 MΩ / 1000 MΩ
Resolution	0.01 MΩ / 0.1 MΩ 0.01 MΩ / 0.1 MΩ 0.01 MΩ / 0.1 MΩ 0.01 MΩ / 0.1 MΩ / 1 MΩ 0.01 MΩ / 0.1 MΩ / 1 MΩ
Test current	1 mA @ 50 kΩ 1 mA @ 100 kΩ 1 mA @ 250 kΩ 1 mA @ 500 kΩ 1 mA @ 1 MΩ
Loop and line impedance (ZI)
Range	10 Ω / 0.001 Ω / High current mΩ mode
Resolution	0.01 Ω / 0.1 Ω / 1 Ω
Prospective earth fault current, PSC test
Range	1000 A / 10 kA (50 kA)
Resolution	1 A / 0.1 kA
Computation	Prospective earth fault current (PEFC) or Prospective short circuit current (PSC) determined by dividing measured 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 1663	A4, AC¹, G²,S³
Notes	¹Responds to AC ²General, no delay ³Time delay 4Responds to pulsed signal 5Responds to smooth DC signal
Tripping speed test (ΔT)
Current settings¹	10-30-100-300-500-1000 mA – VAR 10-30-100 mA
Multiplier	x ½, x 1 x 5
Measurement range	RCD Type G	310 ms 50 ms
	RCD Type S	510 ms 160 ms
Notes	¹1000 mA type AC only 700 mA 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	Type G	300 ms/step
	Type S	500 ms/step
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	200 Ω / 2000 Ω
Resolution	0.1 Ω / 1Ω
Frequency	128 Hz
Output Voltage	25 V
Phase Sequence Indication
Icon	Phase Sequence indicator is active.
General Specifications
Size (L x W x H)	10 x 25 x 12.5 cm
Weight (incl. batteries)	1.3 Kg
Battery size, quantity	Type AA, 6 ea.
Sealing	IP-40
Safety	Complies with 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 / 500V; CAT IV 300V
Performance	EN61557-1 to EN61557-7 Second Edition and EN61557-10 Second Edition