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Home Measuring Instruments UNI-T UNI-T UT502A Megger Insulation Resistance Tester 2500V
UNI-T UT501E Fast Insulation tester
UNI-T UT501E Fast Insulation tester 8,250 EGP
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UNI-T UT502A Megger Insulation Resistance Tester 2500V

4,775 EGP

The UNI-T UT502A Insulation Resistance Tester is a reliable tool for accurate insulation and electrical safety testing. Designed for checking cables, motors, and electrical installations, it delivers stable and precise measurements to help detect insulation faults early. Ideal for electricians, maintenance teams, and industrial inspections, the UT502A offers easy operation, durable design, and dependable performance—helping ensure safety, reduce risk, and maintain reliable electrical systems.

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SKU: UT502A Categories: Electrical Testers, Measuring Instruments, UNI-T Tags: electrical safety, high voltage testing, insulation tester, maintenance tools, uni-t
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  • Description
  • UNI-T UT502A Megger Insulation Resistance Tester 2500V
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Description

Description

The UNI-T UT502A Megger Insulation Resistance Tester is a reliable and efficient tool designed for measuring insulation resistance in electrical systems, offering a testing voltage of up to 2500V. This device is ideal for electricians and maintenance professionals who require accurate assessments of insulation integrity to ensure safety and compliance in various applications. With its user-friendly interface and robust construction, the UT502A provides consistent performance in both industrial and residential settings, making it an essential instrument for preventive maintenance and troubleshooting. Its compact design and portability allow for easy use in diverse environments, ensuring that you can perform necessary tests with confidence and precision.

UNI-T UT502A Megger Insulation Resistance Tester 2500V

UNI-T UT502A Megger Insulation Resistance Tester 2500V

The UNI-T UT502A presents a durable and dependable persona from the first glance. Encased in a sturdy housing capable of enduring demanding environments, it’s built to function smoothly outdoors and onsite. The sizable backlit display ensures readings remain easily visible even in low-light scenarios, while intuitive controls and a clear rotary dial keep navigation straightforward under pressure.

Capable of delivering test voltages up to 2500 V and measuring insulation resistance across an impressive range (up to 20 GΩ), the UT502A empowers technicians to handle high-voltage insulation diagnostics with assurance. It provides essential assessment tools such as Polarization Index and Dielectric Absorption Ratio testing, giving a complete perspective on insulation health. Automatic discharge and real-time high-voltage warnings boost both safety and workflow.

This tester effortlessly merges precision with efficiency. Auto-ranging simplifies configuration, while audible and visual alerts like buzzer alarms and warning lights help catch anomalies early. Its continuity mode, overload indicators, and return-to-zero functionality for low-resistance tests further enhance accuracy and ease of use. Altogether, the UT502A balances advanced diagnostics with intuitive operation in a professional-grade package.

Features:
  • Backlit 2000-count LCD display with overload indication.
  • Auto discharge function for safety after testing.
  • Continuous low-resistance measurement with return-to-zero capability.
  • Integrated PI (Polarization Index) and DAR (Dielectric Absorption Ratio) diagnostics.
  • Auto-ranging and low battery indicator for seamless use.
  • Audible buzzer and red warning light for high-voltage alerts.
  • Auto power-off to preserve battery life.
Specifications:
Specifications Range UT502A
Insulation resistance (Ω) Test voltages 500V/1000V/2500V 0%~10%
500V 0MΩ~99.9MΩ ±(3%+5)
100MΩ~5GΩ ±(5%+5)
1000V 0MΩ~99.9MΩ ±(3%+5)
100MΩ~5GΩ ±(5%+5)
2500V 0MΩ~99.9MΩ ±(3%+5)
100MΩ~9.9GΩ ±(5%+5)
10GΩ~20GΩ ±(10%+5)
Load current 50V (R=50kΩ) 1mA 0%~10%
100V (R=100kΩ) 1mA 0%~10%
250V (R=250kΩ) 1mA 0%~10%
500V (R=500kΩ) 1mA 0%~10%
1000V (R=1MΩ) 1mA 0%~10%
2500V (R=1MΩ) 1mA 0%~10%
Short-circuit current <2mA
Low resistance (Ω) 0.01Ω~200Ω (about 5.0V/>200mA) ±(2%+3)
AC voltage (V) 30V~600V ±(2%+3)
Features
Display count 2000
DAR 60s/15s and 60s/30s √
PI √
Auto range/Low battery indication √
LCD backlight/Light alarm √
Buzzer alarm/High voltage indication √
Over load indication/Auto discharge √
Test voltage secondary display √
10MΩ internal resistance test √
Meets IEC 61557 61557-1:2007; 61557-2:2007; 61557-4:2007 (UT502A only)
General Characteristics
Power 1.5V battery (LR6) x 6
Display 70.6mm x 34mm
Product color Red and grey
Product net weight 500g
Product size 150mm x 100mm x 71mm
 Applications:
  • Testing insulation on transformers.
  • Evaluating insulation of generators and high-voltage motors.
  • Verifying cable and capacitor insulation integrity.
  • Inspecting insulation in arresters and industrial switchgear.
Package Contents:
  • 1x UT502A Insulation Resistance Tester
  • 2x Test Leads
  • 2x Alligator Clips
  • 2x Test Probes
  • 1x User Manual
  • 1x Carrying Bag
  • 1x Strap (wrist or carrying strap)
  • Batteries not included in package
Documents:
  • Datasheet 
  • User Manual
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