STL1110 Hipot Tester (AC/DC/IR)

STL1110/STL1110A AC/DC voltage/insulation resistance tester is Tonghui’s many years of experience in the design of electrical safety testing instruments. The latest design has a high power of 500VA, the maximum output AC 5kV/100mA, in line with the high power voltage test requirements, as well as in line with EN50191 equipment safety standards.

In addition to the basic AC, DC, insulation resistance testing, the breakdown voltage testing function is added to analyze the breakdown point voltage of products, to meet the requirements of specific customers for high voltage reliability testing products; At the same time, it has the function of open and short circuit detection, which solves the reliability and accuracy problems of users when testing safety products. Contact inspection is carried out synchronously when output, to avoid missing detection and improve the reliability and efficiency of testing.

** Standard Lead Time: within 4 weeks **

Key Features

High power: AC 5kV / 100mA / 500VA output

High resolution: 7 inch 800 × 480 dots, TFT-LCD display

ARC detection function

Contact check function (OSC)

Breakdown voltage test function

One-key screen capture function

Storage: 100 files, up to 50 steps per file

Rear panel output function to facilitate automated production line testing




Output Voltage

AC: 0.05-5kV,  Load Variance: 1%, Accuracy: 1%, Resolution: 2V

DC: 0.05-6kV, Load Variance: 1%, Accuracy: 1%, Resolution: 2V

Current Test Range

AC: 0.001mA – 120mA (Voltage≤4kV);0.001mA – 100mA (Voltage>4kV) Accuracy:1%, Resolution: 1μA

DC: 0.0001mA – 25mA, Accuracy: 1%, Resolution: 0.1 μA

Output Power


Output Voltage

0.05 – 5kV, Resolution: 2V, Accuracy: 1% of set value + 0.1% full scale

Resistance Test Range

1MΩ-50.0GΩ;  Resolution:0.1MΩ

ARC Detection

AC: 1mA – 20mA

DC: 1mA – 10mA

High Voltage Floating Output

Leakage current <3 mA

Electric Shock Protection

0.5mA ±0.25mA

groups, 50 steps per group
Voltage Rise Time

0.1s — 999.9s

Test Time Setting(AC/DC)

0.3s — 999s

Voltage Fall Time
0.1s — 999.9s
Waiting Time (IR)

0.2s — 999.9s

Time Accuracy


Main Machine

Module No. Item Description
STL1110 Hipot Tester AC/DC/IR, including withstand voltage test cable
STL1110A Hipot Tester AC/DC/IR, including withstand voltage test cable

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