Kyoritsu KEW 3125B High Voltage Insulation Tester – Compact, Powerful, and Built for Professionals

Step into the next generation of high-voltage insulation testing with the Kyoritsu KEW 3125B—the UK’s smallest yet most capable 5kV insulation tester. Designed for professionals who demand accuracy, safety, and reliability, the KEW 3125B is your go-to solution for advanced electrical insulation diagnostics in the field or lab.

Equipped with insulation resistance measurement up to 1TΩ, a short-circuit current of up to 1.5mA, and a wide test voltage range from 250V to 5000V, this instrument delivers exceptional performance. The guard terminal minimizes leakage current, ensuring higher precision, while the noise-reduction filter maintains stable readings even in harsh environments.

With built-in Polarization Index (PI) and Dielectric Absorption Ratio (DAR) diagnostics, an intuitive LCD bar graph, and a lockable test button for hands-free operation, the KEW 3125B is designed with efficiency in mind. Safety is paramount—this tester features a live voltage warning system, auto-discharge, auto power-off, and complies with IEC 61010-1 CAT IV 300V / CAT III 600V safety standards.

It comes complete with all necessary accessories, including probes, hooks, and a rugged carry case, ensuring you’re ready to test the moment you open the box. Whether you’re performing routine maintenance or tackling high-demand industrial applications, the Kyoritsu KEW 3125B delivers performance and reliability you can trust.

Key Features:

• Insulation Resistance up to 1TΩ

• Short-circuit current: up to 1.5mA

• Wide test voltage: 250V to 5000V

• PI and DAR diagnostic functions

• Noise filter for stable readings

• Live voltage warning and auto-discharge

• LCD bar graph display and backlight

• Auto power off and battery check

• Compact design with tough carrying case

• IEC61010-1 CAT IV 300V / CAT III 600V compliant