Instek GPT-805 AC 500VA Withstand Voltage Tester

The Instek GPT-805 is an AC withstand voltage tester engineered for dielectric breakdown and safety validation of electrical products and assemblies. Delivering 500VA AC output capacity, It has adjustable voltage from 0.1 kV to 5 kV with ±3% accuracy and true RMS current read-back across a 0.3 mA to 100 mA trip range. The instrument combines simultaneous digital monitoring of voltage, current, and elapsed time with arc detection, zero-crossing turn-on switching, and automatic FAIL indication via alarm lamp and audible buzzer.

Technical Specifications AC Withstand Voltage Output:

Voltage range: 0.1 kV to 5 kV

Voltage accuracy: ±3% of reading ±3 counts

Voltage regulation: 15%

Trip current: 0.3 mA to 100 mA (adjustable)

Current accuracy: 3% of reading ±2 counts

Arc detection threshold: 0.3 mA to 100 mA (adjustable)

Test duration: 1 to 180 seconds or continuous

Output capacity: 500VA AC Electrical Input:

Supply voltage: AC 115V or 230V, 50/60 Hz (factory configured)

Key Features

True RMS current measurement with simultaneous three-parameter digital display

Zero-crossing turn-on eliminates inrush transients

Voltage adjustment available during active test period

9-pin PLC interface supports remote Start, Stop, Reset commands and Pass/Fail output

Automatic FAIL indicator with integrated alarm lamp and buzzer

Typical Applications Dielectric withstand testing of transformers, power supplies, motor windings, cable assemblies, and consumer/industrial electrical equipment per JIS, CSA, UL, and BS standards.

Compatibility & Integration Part of the GPT/GPI-800 Series. Supplied with GHT-105/GHT-105A HV test lead (compatible with GPT/GPI-700A Series). Dimensions: 330 mm W × 149 mm H × 446 mm D. Weight: approximately 20 kg.