UNI-T UT501A Digital Insulation Resistance Tester – 100V to 1000V Megohmmeter

Description

Product Overview
The UNI-T UT501A Digital Insulation Resistance Tester is designed to evaluate the insulation condition of electrical equipment, circuits, cables and other electrical installations. It applies a selectable DC test voltage and measures the resulting insulation resistance, helping technicians identify deteriorated or inadequate insulation.
The UT501A belongs to UNI-T’s UT500 Series, which is specifically designed for insulation-resistance testing of electrical equipment and appliances. Uni Trend
How It Works
The tester applies a controlled DC test voltage to the insulation under test and measures the resulting resistance. The UT501A provides four selectable test voltages: 100V, 250V, 500V and 1000V.
For the 250V, 500V and 1000V ranges, the UT501A measures insulation resistance up to 5GΩ. At the 100V test setting, the specified measurement range extends to 100MΩ. Uni Trend
Technical Specifications
Specification Details
Brand UNI-T
Model UT501A
Product Type Digital Insulation Resistance Tester
Test Voltages 100V / 250V / 500V / 1000V DC
Insulation Resistance Up to 5GΩ
100V Resistance Range 0–100MΩ
250V Resistance Range 0–99.9MΩ / 100MΩ–5GΩ
500V Resistance Range 0–99.9MΩ / 100MΩ–5GΩ
1000V Resistance Range 0–99.9MΩ / 100MΩ–5GΩ
AC Voltage Measurement 30V–750V
Display Count 2000
Display Backlit LCD
Auto Range Yes
Auto Discharge Yes
High Voltage Indication Yes
Buzzer Alarm Yes
Power 6 × 1.5V LR6 batteries
Dimensions 150 × 100 × 71mm
Net Weight Approx. 500g
Certifications CE, UKCA

Specifications are based on UNI-T’s current UT500 Series documentation. Uni Trend
Key Features
– Four insulation test voltages: 100V, 250V, 500V and 1000V
– Insulation resistance measurement up to 5GΩ
– AC voltage measurement
– 2000-count LCD
– LCD backlight
– Automatic range selection
– Automatic discharge after insulation testing
– High-voltage warning
– Audible warning function
– Continuous measurement mode
– Low-battery indication
– Portable handheld design
– Test leads and alligator clips included as standard accessories
Applications
The UNI-T UT501A can be used for:
– Electrical insulation testing
– Power-circuit maintenance
– Cable insulation checks
– Motor insulation testing
– Transformer maintenance
– Generator maintenance
– Electrical equipment servicing
– Industrial electrical inspections
– Building electrical maintenance
– Preventive maintenance programs
– Household appliance insulation testing
UNI-T specifically describes the UT500 Series for insulation testing of equipment such as transformers, generators, high-voltage motors, capacitors, cables and arresters. Uni Trend
Buyer Guidance
The UT501A is a dedicated insulation resistance tester, not a conventional clamp meter or general-purpose multimeter. When selecting an insulation tester, match the required test voltage and resistance range to the equipment being inspected.
UNI-T currently lists the UT500 Series as out of stock/unavailable on its manufacturer page, so buyers should confirm the exact availability and production status of the UT501A when placing an order. This does not indicate Dynavation Star’s own stock status. Uni Trend
UAE Sourcing
Dynavation Star Electrical Fittings Trading LLC supplies UNI-T test and measurement instruments for electrical contractors, maintenance technicians, engineers, industrial buyers and technical professionals across the UAE.
Need the UNI-T UT501A in the UAE? Contact Dynavation Star on WhatsApp for a quotation and current availability.