UNI-T UT526 Multifunction Meter for Electricians - Insulation, RCD, Loop/PFC/PSC, Voltage, Continuity Tester

Electrical installations demand rigorous safety verification, and the UNI-T UT526 Multifunction Meter consolidates every critical test into one rugged, portable instrument. From insulation resistance at up to 1000V to RCD trip timing and loop impedance, this meter eliminates the need for multiple devices, saving time and reducing errors on site.

Who is it for

Professional electricians, maintenance technicians, and electrical inspectors who need to certify residential, commercial, or industrial wiring. It is equally suited to periodic testing, fault finding, and commissioning of new installations.

Main features

• Insulation resistance testing at 100V, 250V, 500V, and 1000V, with a range from 0.00MΩ to 99.9GΩ.
• Continuity testing with >200mA test current and 0.00Ω to 2000Ω range, ideal for verifying protective conductors.
• RCD testing for Type A and Type AC devices, with currents of 10mA, 30mA, 100mA, 300mA, 500mA, and 650mA, including trip time measurement.
• Loop impedance and PFC/PSC measurement (0.01Ω to 2000Ω and 0.1A to 20kA) to assess fault protection.
• AC/DC voltage measurement up to 600V and frequency measurement from 20Hz to 200Hz.
• Clear LCD with backlight, auto ranging, data hold, and low battery indication for ease of use in any lighting.

Specifications

• Insulation test voltages: 100V, 250V, 500V, 1000V
• Insulation resistance range: 0.00MΩ to 99.9GΩ
• Continuity test current: >200mA
• Continuity resistance range: 0.00Ω to 2000Ω
• RCD test currents: 10mA, 30mA, 100mA, 300mA, 500mA, 650mA
• RCD test types: Type A, Type AC
• RCD trip time measurement: Yes
• Loop impedance range: 0.01Ω to 2000Ω
• PFC/PSC range: 0.1A to 20kA
• AC voltage range: 0V to 600V (50/60Hz)
• DC voltage range: 0V to 600V
• Frequency range: 20Hz to 200Hz
• Display: LCD with backlight
• Safety rating: CAT III 600V, CAT IV 300V
• Power source: 6 x 1.5V AA batteries
• Auto ranging: Yes
• Data hold: Yes
• Low battery indication: Yes

Tips

Always null the test leads before making continuity measurements to compensate for lead resistance. For insulation tests, ensure the circuit is de-energized and discharge capacitive components after testing. Use the RCD test on both 0° and 180° phase settings to confirm consistent tripping performance.