Kewtech KTD50 Digital RCD Tester

The Kewtech KTD50 Digital RCD Tester with Auto test can test type AC and ACS RCDs from 30mA to 500mA. Special RCD features include an auto, ramp and x 2 I ΔN test.

Whilst in auto test mode, the tester automatically runs through all six standard tests, the operator only needs to reset it when it trips. This tester also allows all results to be viewed by using the recall button.

The ramp test slowly increases tripping current until the RCD trips. The display is in mA and it will show up RCDs that are out of specification and those that will be susceptible to nuisance tripping. It can also be used to indicate which circuits have high leakage currents.

The x 2 I ΔN test satisfies the advisory note for verification of disconnection times as specified in the 17th Edition Regulations.

The Kewtech KTD50 RCD Tester measures mains voltage and incorporates a full socket tester that checks for any mis-wiring at the socket.

Also, the Kewtech KTD50 has a unique mains polarity test that can check the mains incoming supply is not in line / neutral reversal.

Kewtech KTD50 Digital RCD Tester with Auto Test

• Comprehensive RCD tester
• Includes RCD ramp and auto-test
• Full socket tester functionality built in
• Unique mains supply polarity test (checks that line and neutral are not switched at the supply)
• Measures mains voltage
• Special x 2 I ΔN RCD function
• Tests selective RCDs

Technical Data Section

Technical Specifications

Features

• Type AC & ACS breakers
• 30mA breakers × ½, × 1, × 2, × 5 test currents
• 100mA, 300mA, 500mA breakers × ½, × 1 test currents
• Unlimited number of RCD tests
• RCD test polarity change
• Auto / Manual test on all breakers
• Full socket test and mains polarity test
• Complies with EN61557 parts 1 and 6 (performance)
• Complies with EN61010 (safety)
• Complies with EN61326 (EMC)

RCD Test Range (to EN61557-6)

• Supply voltage 195V – 253V AC 50Hz
• Test current accuracy (½ I) –0% to –10%
• Test current accuracy (I, 5I) +0% to +10%
• Trip time accuracy Up to 1 second ±(1% +1ms)
• Over 1 second ±(1% +10ms)

Voltage measurement

• Range 5V to 440V ±(2% + 1V) over the working frequency range of 50Hz ±0.5%

Socket test

• Detects opens, shorts, wrong wiring, phantom conditions, phase reversal, out of limits voltage.

Fault Touch Voltage

• Test terminated if > 25V

Power

• 4 × AA batteries ‘Alkaline’ recommended (not included)
• Battery life 10,000 tests
• Fitted fuse 32mm 0.25A (F) HBC
• Survives 440V over voltage test rated for 1 minute

Environmental

• Operating Temp: Range 0°C to 40°C
• Storage Temp: Range –10°C to +60°C
• Operating Humidity: 93% RH @ 40°C

Dimensions

• Size: 157mm × 89mm × 39mm
• Weight: 400g

Download technical PDFs for further information on this product.

Kewtech KTD50 Datasheet