UNI-T UT501A insulation resistance tester
Ex Tax: 58.93€
UNI-T UT501A insulation resistance tester is a versatile device designed to accurately measure insulation resistance in electrical equipment and households. It can measure insulation between electrical circuits or between a circuit and ground. The UT501A offers measurements of insulation resistance, AC voltage, low resistance, as well as PI (polarization index) and DAR (dielectric absorption coefficient). Equipped with a 2,000-count LCD display, backlight function, overload indicator and automatic shutdown, the UT501A ensures safety, accuracy and convenience during operation. In addition, CE and UKCA certifications confirm the device's high quality and compliance with European standards.
Advanced measurement functions for demanding usersThe UT501A tester not only provides standard measurements, but also offers a continuous low-value resistance measurement mode, an automatic discharge function, and a continuous measurement mode supported by audible signals and a red warning light. The PI and DAR functions, along with automatic resistivity calculation, allow detailed evaluation of the insulation condition of high-voltage equipment such as transformers, generators, motors, capacitors or cables. In addition, the low resistance zeroing function increases the accuracy of measurements, making the UT501A an invaluable tool in the diagnosis and maintenance of electrical installations.
Durable design and convenient useThe UT501A's compact and sturdy housing ensures that it can withstand heavy use in the field and at industrial sites. The LCD display with backlight function allows reading the results even in harsh lighting conditions, and automatic shutdown extends battery life. With continuous measurement capability and an intuitive warning system, you gain full control over the testing process, allowing you to quickly and safely assess the condition of your installation. The UNI-T UT501A is an indispensable partner wherever reliability and precision count.
Included- insulation resistance tester
- batteries
- test leads
- crocodiles
- instruction manual
| Manufacturer | UNI-T |
|---|---|
| Model | UT501A |
| Number of displayed digits | 2000 |
| DAR measurement | Supported (60 s / 15 s and 60 s / 30 s) |
| PI measurement | Supported |
| Automatic range selection / low battery indicator | Supported |
| LCD backlight / alarm light signal | Built-in |
| Audible alarm / high voltage indication | Built-in |
| Overload / automatic discharge indicator | Built-in |
| Secondary test voltage display | Built-in |
| Internal resistance test 10 MΩ | Supported |
| Standards met | IEC 61557 (61557-1:2007; 61557-2:2007; 61557-4:2007 - UT502A only) |
| Power supply | 6 × 1.5 V battery (LR6) |
| Display | 70.6 × 34 mm |
| Product color | Red, gray |
| Weight | 500 g |
| Dimensions | 150 × 100 × 71 mm |
| Test voltages | 100 V / 250 V / 500 V / 1000 V; 250 V / 500 V / 1000 V; 500 V / 1000 V / 2500 V |
|---|---|
| Insulation resistance measurement (Ω) | 100 V: 0 MΩ ~ 100 MΩ (accuracy ±(3%+5)); 250 V: 0 MΩ ~ 99.9 MΩ (±(3%+5)), 100 MΩ ~ 5 GΩ (±(5%+5)); 500 V: 0 MΩ ~ 99.9 MΩ (±(3%+5)), 100 MΩ ~ 5 GΩ (±(5%+5)); 1000 V: 0 MΩ ~ 99.9 MΩ (±(3%+5)), 100 MΩ ~ 5 GΩ (±(5%+5)); 2500 V: 0 MΩ ~ 99.9 MΩ, 100 MΩ ~ 9.9 GΩ, 10 GΩ ~ 20 GΩ |
| Load current | 50 V (50 kΩ) 1 mA (0% ~ 10%); 100 V (100 kΩ) 1 mA (0% ~ 10%); 250 V (250 kΩ) 1 mA (0% ~ 10%); 500 V (500 kΩ) 1 mA (0% ~ 10%); 1000 V (1 MΩ) 1 mA (0% ~ 10%); 2500 V (1 MΩ) 1 mA (0% ~ 10%) |
| Short-circuit current |
Claim orders from Stores
You can claim your purchased items within 1 - 4 work days after making an order (if product is in local warehouse).
Please wait for an email notification regarding Your order status update.
Vilnius Store address: Vytenio g. 20, LT-03229 Vilnius, Lietuva
Kaunas Store address: Pramonės pr. 4D, LT-51329, Kaunas, Lietuva
Local delivery in Lithuania
Purchased items are delivered locally through Venipak service. Depending on availability of items, orders are processed within 1-3 work days. Orders made until 1AM are shipped the same day.
Local delivery (1-4 w.d.) price for items of any size is through through courier service is 4.90€ (incl. VAT), if the amount of the shopping cart exceeds 150€ - delivery is free.
Local delivery price to Venipak parcel terminals (1-3w.d.) is 2.90€ incl. VAT, if the amount of the shopping cart exceeds 50€ - delivery is free.
Local delivery price to Omniva parcel terminals (1-3w.d.) is 3.90€ incl. VAT,if the amount of the shopping cart exceeds 70€ - delivery is free.
Payment on delivery (COD) +2.00€ (incl. VAT).
You can pay for the goods at the time of delivery to the courier in cash or by credit card. Payment to Omniva parcel terminals is only possible by bank card.
A separate delivery fee applies to oversized items, regardless of the amounts and conditions stated above.
International delivery pricing through courier service
International shipping prices depend on geographic location:
Latvia - 5.50€ (incl. VAT)
Estonia - 6.50€ (incl. VAT)
Paid orders of more than 150€ are shipped for free to Latvia and Estonia.
other countries - negiotiated individually.
International delivery pricing to Omniva/Venipak parcel terminals
Latvia - 6.00€ (incl. VAT)
Estonia - 8.50€ (incl. VAT)
Payments:
We accept payments via PayPal for orders over 20€.

