Insulation Resistance Tester | Shell Insulation Resistance Test

The WB2681 Insulation Resistance Tester is a testing device developed by LISUN specifically for inspecting the insulation performance of electrical equipment. By applying a stable high DC voltage, it accurately measures the insulation resistance value of the Device Under Test (DUT), quickly identifies safety hazards such as insulation layer aging, moisture absorption, and damage, and provides data support for the safe operation of equipment throughout its lifecycle.

The WB2681 adopts an industrial-grade high-precision resistance sampling chip and a low-ripple voltage output circuit to ensure the reliability of test data under various requirements. Meanwhile, it is equipped with two modes: timed testing and manual testing, combined with an acousto-optic alarm (triggered when the resistance value is lower than the set threshold). It is an insulation testing tool covering R&D verification, production quality inspection, and on-site maintenance.

Specifications:

Applications:

• Household Appliance Industry: Insulation resistance tests between power cords and enclosures of products such as rice cookers, washing machines, and electric kettles (250V, 500V ranges), compliant with GB 4706.1-2024/IEC 60335-1:2023, to verify insulation reliability before use.
• Lighting Industry: Insulation tests between lamp holders and enclosures of LED downlights, ceiling lights, and outdoor floodlights (500V range), meeting GB 7000.1-2023/IEC 60598-1:2024, to prevent electric leakage risks in lighting fixtures.
• Information Technology Equipment Industry: Insulation resistance tests for power modules of routers, printers, and small servers (500V, 1000V ranges), compatible with GB 4943.1-2022/IEC 60950-1:2023, to ensure electrical safety of IT equipment.
• Medical Equipment Industry: Insulation tests for internal circuits of small medical monitors and physiotherapy instruments (1000V range), compliant with GB 9706.1-2020/IEC 60601-1:2020, meeting the stringent insulation requirements for medical devices.
• Industrial On-Site Maintenance: Random inspections of insulation performance for factory motor windings and cable lines (250V, 1000V ranges), with reference to GB/T 50150-2016/IEC 61557-1:2021, to determine if equipment insulation has degraded due to aging or moisture absorption.
• Electronic Component Testing: Insulation tests between pins of components such as capacitors, transformers, and relays (250V, 500V ranges), verifying insulation performance of components before factory shipment to avoid whole machine failures caused by component defects.
• Laboratory R&D: Insulation performance verification during the R&D phase of electrical products (e.g., reliability tests for insulation layers of new product prototypes), supporting timed testing mode to adapt to insulation data collection needs under multiple working conditions.