Uni-T UT593AU Multifunction RCD Loop Tester

Regular price
$805.95
Sale price
$805.95
Regular price
$984.95
Sold out
Unit price
Quantity must be 1 or more

Table of contents

Meet the UT593AU: What it does best

The UT593AU is a reliable go-to for testing insulation, RCD trip time, voltage, loop impedance and more. Built to handle Australian electrical safety jobs, it's smart, accurate and built tough.

Designed for safety-first inspections

Perfect for electricians testing home or commercial setups. The UT593AU helps ensure gear is safe to use and up to code.

  • ✅ Built to meet AS/NZS standards for Australian conditions
  • ✅ RCD trip current and time testing across 10mA to 500mA
  • ✅ 0° and 180° phase angle testing helps find faults fast
  • ✅ Countdown test mode adds extra safety confidence
  • ✅ Ideal for insulation, continuity, and earth loop testing
  • ✅ Clear phase sequence display (L1-L2-L3)

Top features electricians love

Easy to use, feature-packed, and built to save time on every test. Here’s what makes the UT593AU a workshop essential.

  • ✅ Large 9999-count LCD display with analogue bar
  • ✅ White backlight for dark workspaces
  • ✅ RCD trip current tests: ×1/2, ×1, ×5, plus ramp mode
  • ✅ Loop impedance and PFC test up to 26kA
  • ✅ Earth continuity test with >200mA test current
  • ✅ Dual AC/DC voltage test up to 440V
  • ✅ Auto power off to save battery
  • ✅ On-screen connection status display

What’s in the box?

Everything you need to get started is included. Great for onsite work or as a handy backup unit in your van.

  • ✅ Carry case for safe storage
  • ✅ Batteries included (6 x 1.5V)
  • ✅ Red, green, and black test leads
  • ✅ Special power test lead + remote control test lead
  • ✅ Printed manual for quick setup
  • ✅ 12-month warranty for peace of mind

Important specs at a glance

Need the numbers? Here are the key figures to know when comparing tools for your kit.

  • ✅ Insulation resistance up to 1000MΩ @ 1000V
  • ✅ Line/loop impedance from 0.01Ω to 2000Ω
  • ✅ RCD test current range: 10mA to 500mA
  • ✅ Voltage range: 0–440V (AC/DC)
  • ✅ Weight: 1000g (lightweight for fieldwork)
  • ✅ Dimensions: 210mm × 175mm × 90mm
  • ✅ Display: 125mm x 37mm LCD with backlight
  • ✅ Test current for low-resistance: >200mA
Go to full site