








The UNI-T UT582+ Digital RCD/ELCB Tester is a professional electrical safety testing instrument designed for electricians, maintenance engineers, and inspection professionals. It accurately tests RCD, RCCB, ELCB, and leakage protection switches with high precision using an intelligent microprocessor. The built-in AUTO RAMP function automatically increases the test current from 20% to 110% while simultaneously measuring trip time and trip current for complete RCD analysis.
The UT582+ also features AC voltage measurement (30V–600V), frequency measurement (45Hz–65Hz), automatic data hold, contact voltage alarm, fuse protection, and CAT III 600V safety rating. Its double-insulated construction, LCD backlight, automatic shutdown, and battery-powered operation make it a reliable tool for electrical installation, maintenance, and safety inspections.
| Specification | Details |
|---|---|
| Brand | UNI-T |
| Model | UT582+ |
| Product Type | Digital RCD / ELCB Tester |
| RCD Testing | Supported |
| AUTO RAMP Function | 20%–110% Automatic Step Test |
| Phase Selection | 0° / 180° |
| Voltage Measurement | 30V–600V AC |
| Frequency Measurement | 45Hz–65Hz |
| Input Voltage | >50VAC / 75VDC |
| Contact Voltage Alarm | 25V / 50V |
| Display | LCD with Backlight |
| Automatic Data Hold | Yes |
| Over Range Indication | OL Display |
| Safety Protection | Fuse Protection |
| Safety Rating | CAT III 600V |
| Insulation | Double / Reinforced Insulation |
| Power Supply | 6 × 1.5V AA Alkaline Batteries (Not Included) |
| Battery Included | No |
| Certifications | CE, FCC, RoHS, UL, KC, PSE, WEEE |
| Origin | Mainland China |
Note: Batteries are not included in the package.\








