Kewtech KTD50 Digital RCD Tester with Auto-Test

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The Kewtech KTD50 RCD tester can test AC and ACS RCDs from 30mA to 500mA with full socket tester functionality built-in.

rrp £289.00

now £179.00 (Ex. VAT) £214.80 (Inc. VAT)

rrp £289.00

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  • Description

    Kewtech KTD50 Digital RCD Tester with Auto-Test

    The Kewtech KTD50 RCD Tester is a comprehensive RCD tester that tests AC and ACS RCDs from 30mA to 500mA. The ramp test feature slowly increases the tripping current until the RCD trips. The display is in mA and will show up RCDs that are out of specification as well as highlighting those that will be susceptible to nuisance tripping. It can also be used to indicate which circuits have high leakage currents. The auto-test mode allows the RCD test meter to automatically run through all six standard tests whilst the operator need only reset the RCD each time it trips. The x 2 I ΔN test satisfies the advisory note for verification of disconnection times as stated in 17th Edition regulations.

    The Kewtech KTD50 RCD tripping time tester also measures mains voltage and incorporates a full socket tester that detects opens, shorts, wrong wiring, phantom conditions, phase reversal and out of limits voltage. This RCD trip time tester also has the unique feature of a mains polarity test which checks that there isn't the hazardous condition of a live/neutral reversal at the mains supply.

    Kewtech KTD50 Digital RCD Tester with Auto-Test Key Features:

    • Includes RCD ramp and auto-test
    • Full socket tester functionality built-in
    • Unique mains supply polarity test
    • Measures mains voltage
    • Special x 2 I ΔN RCD function
    • Tests selective RCDs
  • Specification

    • Supply voltage: 195V – 253V AC
    • Supply frequency: 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)
    • Trip time accuracy over 1 second: ±(1% +10ms)
    • 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 and 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)
    • Voltage measurement Range 5V to 440V ±(2% + 1V) over the working frequency range of 50Hz ±0.5%
    • Fault Touch Voltage: Test terminated if > 25V
    • Operating Temp. Range: 0°C to 40°C
    • Storage Temp. Range: –10°C to +60°C
    • Operating Humidity: 93% RH @at40°C
    • 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.
    • Size: 157 × 89 × 39mm
    • Weight: 400g
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  • Delivery Information

    At we understand the importance of a reliable delivery service when shopping online. Especially when the goods are often essential to your working day. If your goods are required by a certain date please feel free to contact us for an honest and realistic indication whether this can be met. We aim to process all orders we receive within 1 to 3 working days, however from time to time we do have an increased demand for certain products or there might be delays from the manufacturer. In such cases delivery of your equipment may be subject to a minor delay.

    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

    We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink.

    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 3-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £7.50
    • Pre-Noon Next Working Day Delivery (on select products only) at £9.50*
    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

    Customers outside the UK: exports to many countries all over the world. Prices for shipping vary on location and weight/dimensions. Costs are calculated for certain countries at the checkout. If your country is not included in this list please e-mail with your name, address and the items you would like to order for an accurate shipping quote or go to for more information.

    For more information on delivery, please see our terms and conditions.