UNI-T UT593 Multifunction Electrical Installation Tester

UNI-T UT593 Multifunction Electrical Installation Tester in Sri Lanka

RCD, Loop Impedance, Insulation Resistance & Continuity Tester in One Instrument

The UNI-T UT593 Multifunction Electrical Installation Tester is a comprehensive all-in-one safety instrument combining RCD trip time testing, earth fault loop impedance measurement, insulation resistance testing, low-resistance continuity checking, and live voltage measurement. It is purpose-built for electrical contractors, test-and-inspection engineers, and building services professionals in Sri Lanka who require a single portable tool for full IEE Wiring Regulations and IEC standard compliance verification.

Discover our complete selection of Digital RCD Testers — from portable single-phase testers to multifunction installation instruments in Sri Lanka!

Unlike standalone RCD testers, the UT593 eliminates the need to carry multiple instruments on-site. Its integrated architecture covers every core test required during an electrical installation periodic inspection report (EICR), from initial voltage checks through to insulation integrity and protective device trip verification.

Technical Specifications

RCD Rated Current: 10mA, 30mA, 100mA, 300mA, 500mA

RCD Test Modes: Trip time (x½, x1, x5), Ramp test, 0° and 180° phase angles

Loop Impedance: 0.01Ω–1999Ω with PSC/PFC calculation

Insulation Resistance: 250V / 500V / 1000V test voltage, range up to 2000MΩ

Continuity: 0.01Ω–999Ω low-resistance measurement with audible beeper

Voltage Measurement: 10V–440V AC

Supply Voltage: 100V–440V AC, 50/60Hz

Safety Rating: CAT III 600V

Key Features

All-in-One Platform: Replaces five separate instruments — RCD tester, loop tester, insulation tester, continuity tester, and voltmeter

PSC / PFC Display: Automatically calculates prospective short-circuit and prospective fault current from loop impedance results

Multi-Voltage Insulation Test: Selectable 250V, 500V, 1000V outputs for testing cables, motors, and switchgear insulation

Audible Continuity: Instant beeper response for rapid PE conductor and bonding checks

Large Backlit Display: High-contrast LCD ensures readability in dimly lit panels and distribution rooms

Rotary Function Selector: Dedicated switch positions for fast function changeover on-site

Applications

Electrical installation periodic inspection report (EICR) testing

New installation commissioning and sign-off verification

RCD and ELCB trip time compliance testing in commercial buildings

Insulation resistance testing on submersible pump and motor cables

Earth continuity and protective bonding verification

Loop impedance measurement on TN-S and TN-C-S earthing systems

Package Includes

1 x UNI-T UT593 Multifunction Installation Tester

Test leads with safety shrouded probes

Alligator clips

Battery pack (installed)

English user manual

Hard carrying case

If your projects demand higher insulation test voltage up to 1000V and an extended loop impedance range for large industrial sites, consider the UNI-T UT595 Comprehensive Electrical Safety Tester for maximum diagnostic coverage.

Downloads

📄 Download UNI-T UT593 Data Sheet
📄 Download UNI-T UT593 User Manual