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GCT-9040 - 40A AC Ground Bond Tester

40A AC Ground Bond Tester

GW Instek

Category : Ground Bond Tester

$2,608 (CAD)
$1,800 (USD)
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Datasheet Users Manual


GW Instek rolls out40AAC ground bond tester ─ GCT-9040 to augment the existing safety tester product line and to replace the legacy model GCT-630. GCT-9040 provides the maximum AC test current of40A and adopts the PWM design the same as other models to ensure test efficiency and reliability. Furthermore, large LCD display, 100 memory blocks from setting criteria, and programmable communications interface together deliver users with higher readability and convenience.

In addition to the standalone ground bond test operation, GCT-9040, with40AAC ground bond test capability, can also externally connect with GW Instek safety testers such as GPT-9800/9900/9900Aseries to augment users’ product test requirements by the all-in-one test platform. For instance, GPT-9802 (AC/DC withstanding tester), via external connection, can be expanded to a safety tester system with three testing functionalities.

Additionally, after the safety tester system has been assembled, not only the sequential test function for the original all-in-one models can be executed, but also the simultaneous output test can be conducted. The simultaneous output test allows two testers to simultaneously test DUT so as to shorten the overall test time. Whether the safety tester system executes sequential test or simultaneous output test, GCT-9040 will automatically obtain control over two testers, including activation control, final status indication light, and pin signal output from Digital I/O etc. to avoid confusion caused by each tester’s indication light.

Last but not least, GCT-9040, with respect to remote control and data retrieval, not only provides standard USB (optional GPIB) interface to control all functionalities but also controls connected safety testers (GPT-9800/9900/9900Aseries) via commands to read measurement results. 

  • AC 40A Ground Bond Tester
  • Measuring Resistance from 1mΩ~650mΩ
  • Connect with the GPT-9800/9900 series to become a multifunctional test or simultaneous test system
  • 240x64 Ice Blue Dot Matrix LCD
  • Function Key for quick selecting
  • High intensity flash for Caution & Status indication
  • PWM switching amplifier to enhance the power efficiency and reliable testing
  • Max. 100 memory block for test condition setting.
  • Remote terminal on the front panel for “start” and “stop” remote active
  • Interface : USB device, Signal I/O and GPIB (optional)


Note The specifications apply when the GCT-9040 is warmed up for at least 30 minutes and works in operation temperature : 15°C ~35°C.
Display 240 x 64 Ice Blue Dot Matrix LCD
Memory 100 sets for panel setting save and recall
Power Source AC 100 V / 120 V / 220 V / 230 V ±10%
Line Frequency 50/60Hz
Consumption 700VA (max)
Dimensions 330(W) x 148(H) x 460(D) mm
Weight Approx. 17kg (max)

AC Ground Bond

Output-Current 03.00A~ 40.00A AC
Output-Current Resolution 0.1A
Output-Current Accuracy 3A ≤ I ≤ 8A : ± (1% of setting + 0.2A)
8A < I ≤ 40A : ± (1% of setting + 0.05A)
Test-Voltage 8Vac max (open circuit)
Test-Voltage Frequency 50Hz/60Hz selectable
Resistance Measurement Range 1.0mΩ ~ 650.0mΩ
Resistance Measurement Resolution 0.1Ω
Resistance Measurement Accuracy ± (1% of reading + 2mΩ)
Window Comparator Method Yes
TIMER (Test Time) 0.5s~999.9s
GND OFF (fix)
Test Method Four Terminal


Single Step Memory Manu: 100 blocks


Link For system connection
USB Standard
GPIB Option
Remote Terminal (Front) Standard
Signal I/O Standard
Display 240 x 64 Ice Blue Dot matrix LCD

Power Source & Consumption

Source AC 100 V / 120 V / 220 V / 230 V ±10%, 50/60Hz
Consumption Max. 700VA

Dimensions & Weight

Dimensions 330(W) x 148(H) x 460(D) mm
Weight Approx. 17kg max.

Output Limitation in AC Ground Bond Testing as below

Output Range Pause Output Time (max)
20A < I ≤ 40A At least as long as the output time 999.9s
3A < I ≤ 20A Not Necessary 999.9s

Do you have a 40A AC Ground Bond Tester that needs to be calibrated?

We offer standard traceable calibration and ISO 17025 accredited calibration services.

Get your 40A AC Ground Bond Tester calibrated today! Click Here!