# Residual Current Device (RCD) Tester Unit Uni-T UT582+ — Portable Digital RCD/RCCB Test Instrument

**URL:** https://aio.lv/en/product--unit-mie0376--11052948
**Data updated:** 2026-03-11 11:59 (EET)
**Category:** Cable testers
**Manufacturer:** Unit
**Manufacturer code:** MIE0376
**EAN:** 5901890044967
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 133.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 110.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unit-mie0376--11052948

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Handheld digital RCD tester Unit Uni-T UT582+ designed for testing residual current devices (RCD/RCCB). Provides controlled trip current and trip time measurements to verify protective device operation. Suitable for commissioning and periodic inspection of domestic and commercial electrical installations, detection of nuisance trips, and verification of earth-fault protection performance.

## Long description

The Residual Current Device (RCD) Tester Unit Uni-T UT582+ is a portable digital instrument for verifying the operation of residual current devices (RCD/RCCB) in electrical installations. The handheld tester supplies controlled trip currents and measures trip times to confirm that protective devices operate within specified thresholds. It is intended for use during commissioning, periodic inspection, troubleshooting of nuisance tripping and validation of earth-fault protection performance in domestic and commercial environments.
Advantages
The Unit Uni-T UT582+ combines portability with straightforward measurement functions, providing accurate trip-current injection and trip-time measurement in a compact housing. Its digital display and simple controls permit clear reading of test results and reduce the chance of operator error. The tester supports a range of test currents and offers repeatable output to aid consistent verification of RCD sensitivity and response time.
Suitable for
 Commissioning of new electrical installations in homes and small commercial premises
 Periodic inspection and testing to verify RCD/RCCB performance
 Troubleshooting and locating causes of nuisance or unwanted trips
 Verification of earth-fault protection in distribution boards and socket circuits
Key specifications
 Function: Injection of controlled residual fault currents and measurement of trip time
 Display: Digital readout for current and time measurements
 Supply: Battery-powered for portable field use
 Outputs: Multiple selectable test current levels to check different sensitivity classes
 Operation: Handheld form factor with ergonomic controls suitable for single-person testing
 Safety: Designed for use on low-voltage AC installations with appropriate test leads and procedures
How to use
Connect the tester to the circuit under test following the manufacturer’s test-lead connection scheme and ensure the circuit is isolated or the live parts are protected according to local safety rules. Select the required test current value and initiate the test; the instrument will inject the selected residual current and stop when the protective device under test trips. Read the trip current and trip time from the digital display and record results for comparison with applicable standards or installation requirements. Repeat tests as needed at different current levels to confirm correct operation across rated sensitivities.
Usage recommendations
Always follow local electrical regulations and safe work practices when performing RCD tests. Use appropriate personal protective equipment, verify the correct wiring of the circuit before testing, and avoid applying test currents to circuits with sensitive electronic equipment connected unless equipment is isolated. Keep batteries charged and inspect test leads for damage before use to ensure accurate and safe measurements.

## FAQ

### How much does the RCD Tester Unit Uni-T UT582+ cost, and is it available for purchase?

The price is 133.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 03.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can RCD Tester Unit Uni-T UT582+ be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Unit products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Unit service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11052948/65914522_large.webp