Automatic Safety Test System

LS9955/LS9956 Automatic Safety Tester is an integrated testing system developed by LISUN for the safety inspection of electrical products. It can complete five core functions in one stop: AC/DC Withstand Voltage Test, Insulation Resistance (IR) Test, Leakage Current (LLC) Test, Grounding Resistance (GR) Test, and Power Test. No additional standalone equipment is required, which greatly simplifies the testing process.

The LS9955/LS9956 adopts an industrial-grade hardware architecture and intelligent control logic. It supports visual setting of test parameters, real-time display of test results, and acousto-optic alarm for over-limit conditions. Meanwhile, it has the capacity to store 50 test programs (each containing 8 test steps), which can flexibly meet the needs of batch testing on production lines and customized testing in R&D laboratories.

Standard:

Specification:

Note:
• The LS9955/LS9956 of Leakage Current Test (LLC) needs to work with LISUN ITEU-SP1KS / ITUS-SP1KS Isolation Transformer or LSP-1KVAS AC Power Supply; 
• The LS9956 of Power Test need to work with LISUN LSP-1KVAS AC Power Supply (The LS9955 does not include the Power Test function).

Applications:

• Lighting Industry: Withstand voltage and insulation tests for small and medium-sized luminaires such as LED ceiling lights, downlights, and outdoor garden lights, compliant with GB 7000.1-2023/IEC 60598:2024.
•  Home Appliance Industry: Leakage current and grounding resistance tests for products like rice cookers, electric kettles, and hair dryers, meeting GB 4706.1-2024/IEC 60335-1:2023.
• IT Equipment Industry: Insulation resistance and withstand voltage tests for routers, printers, and small servers, compatible with GB 4943.1-2022/IEC 60950-1:2023.
• Laboratory R&D: Safety performance verification for small and medium-sized electrical products during the R&D phase, supporting custom test procedures (e.g., multi-voltage gradient withstand voltage tests).
• High-Power Home Appliance Industry: Grounding resistance tests for large home appliances such as washing machines, refrigerators, and air conditioner outdoor units (requiring high current of 30~50A), compliant with GB 4706.1-2024.
• Industrial Motor Industry: Insulation resistance and withstand voltage tests for small and medium-sized drive motors and water pump motors, preventing winding leakage risks.
• Medical Equipment Industry: Leakage current tests for small medical physiotherapy instruments and diagnostic equipment, meeting GB 9706.1-2020/IEC 60601-1:2020.
• Mass Production Line Testing: Efficient testing for large home appliance assembly lines and industrial equipment production lines. The storage capacity of 100 test programs enables quick switching between multi-product test schemes, adapting to high-capacity requirements.

Automatic Safety Test System - Introduction Video

Automatic Safety Test System - Operation Video