Kyoritsu 5410 RCD Tester with Ramp and Voltage Functions


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Kyoritsu 5410 RCD Tester with Ramp and Voltage Functions

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$983.00 tax excl.

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The Kyoritsu 5410 is a digital RCD Tester designed to measure the trip time and trip out current of Residual Current Devices (RCDs). The 5410 is also equipped with a voltage measurement function.


  • Measurement of RCD Trip Time: Conduct testing of rated residual non-operating currents at x 1/2 Range, measuring RCD trip time at x1 and x5 Ranges.
  • Measurement of Trip Out Current: Measuring trip out current by varying current automatically.
  • Remote Test: Enabling a user to hold the Test Leads with his both hands by locking the Test Button.
  • Voltage Measurement: Carrying out a constant measurement of voltage in the stand-by mode at each Range.
  • Auto-Detection of Contact Voltage: Detecting the voltage to earth of Earth electrodes or Protective conductors during RCD test – when applying test currents – at measurement using EARTH in order to prevent electrical shocks caused by the damaged earth. Measurement will be ceased at AC50V or more.
  • Dust- and Water-Proof: Dust- and Water-proof construction (designed to IEC60529 IP54)
  • Backlight: Facilitates working in dimly illuminated locations.


Measurement of RCD trip time - Measurement of trip out current
Range×5×1×1/2AUTO RAMP (mA)
Rated Voltage100V±10%
Test current15/30/50/100mA15/30/50/100/200/500mA15/30/50/100/200/500mA
Measuring rangeTesting time
Testing time
Testing time
40%~110% of lΔn
(goes up by 5%)
Testing time
300ms × 15steps
(Trip Time)
|±1%rdg±3dgt|±1%rdg±3dgt|±1%rdg±3dgtTest Current
at each step
(Test Current)
Voltage Measurement
Measuring range80V~450V (50/60Hz)
Applicable StandardIEC 61010-1 Pollution degree2 CAT.III 300V / CAT.II 400V
IEC 61010-031
IEC 61557-1, 6
IEC 60529 (IP54)
Display1999 counts (3 1/2digits), Large LCD
Operating temperature & humidity0ºC~40ºC, relative humidity 85% (no condensation)
Storage temperature & humidity-20ºC~60ºC, relative humidity 85% (no condensation)
Withstand VoltageAC3700V / 1 min. (between electrical circuit and enclosure)
Insulation resistance50MΩ or more / 1000V (between electrical circuit and enclosure)
Sleep Function
(1)Automatically enters Sleep mode in 3 minutes after the last switch operation (current consumption 75µA). This function doesn't work at voltage measurements. To exit from the Sleep mode, set the Function switch to OFF position once, and re-set it to the Range at which a measurement to be conducted.
(2)Backlight turns off in 1 minute after it lights up.
Power SourceDC 12V / Size AA battery R6P (SUM-3) × 8 pcs.
WeightApprox. 965g (including batteries)
Possible number of Measurements1200 times or more
(measure every 30 seconds at ×1/2 Range, lΔn=100mA)
Accessories7128A (Test leads)
7129A (Test lead with alligator clip)
8017 (Long pin) × 2
Cord case, Strap belt, Instruction manual,
Size AA battery R6P(SUM-3)×8pcs.

Instrument layout

Kyoritsu 5410 RCD Tester

Included Test Leads

Kyoritsu 5410 Test Leads

Measurement Principle

This instrument has a constant current circuit, and drives leakage currents (I) between LINE-NEUTRAL as illustrated in Fig.5 to activate RCDs, moreover, can output and measure leakage currents flowing to
the earth as shown in Fig.6.

  • Trip time measurement: Measure and display the time between the start of driving leakage currents (I) and trip of the RCD.
  • Trip out current measurement: Increase the leakage current gradually from the 40% of IΔn, the current value when RCD trips is displayed.

Influence of the fluctuations in system voltages is less on this instrument due to the incorporated constant current circuit.

Kyoritsu 5410 RCD Tester