







- Stock: In Stock
- Model: UNI-T UT582+ Digital RCD
- Weight: 400.00
- Dimensions: 160.00 x 100.00 x 71.00
- SKU: 4078
Comprehensive Electrical Safety Assessment
The UNI-T UT582+ is a high-precision digital Residual Current Device (RCD) tester engineered specifically for field electrical contractors, safety inspectors, and industrial maintenance personnel. Designed to meet modern electrical installation verification standards, this instrument measures circuit disconnect trip times and operating threshold currents across standard RCD configurations. By evaluating residual current responsiveness, the UT582+ ensures strict adherence to international electrical safety regulations, protecting sensitive electronics and human life from fatal shock hazards and stray leakage currents.
Advanced RCD Testing Capabilities and Auto Ramp
Equipped with specialized operating modes, the UT582+ evaluates selective and standard RCDs rated from 10mA to 500mA. The tester supports x1/2, x1, and x5 current multipliers, enabling comprehensive diagnostics for non-tripping limit verification, normal operation timing, and fast-trip emergency scenarios. The integrated Auto Ramp test systematically steps through differential current increments, pinpointing the exact milliampere threshold at which the protection device disengages. This granular insight allows engineers to differentiate between nuisance tripping caused by background leakage and genuine RCD degradation.
Specifications of
UT582+ Digital RCD (ELCB) Tester
Specifications | Range | UT582+ | ||
RCD measurement | Range setting | Rated operating
current | Trip time | |
X 1/2 | 10mA/20mA/30mA/100mA/300mA/500mA | 2000ms | -10%~0% | |
X 1 | 10mA/20mA/30mA/100mA/300mA | 1000ms | 0%~10% | |
500mA | 300ms | 0%~10% | ||
X 5 | 10mA/20mA/30mA | 40ms | 0%~10% | |
AUTO RAMP | 10mA/20mA/30mA/100mA/300mA/500mA | 300ms | -10%~10% | |
Trip time accuracy | ±(2%+2) | |||
Operating voltage
(Freq.) | 195V~253V | |||
Voltage measurement | Voltage range | 30~600V | ||
Frequency | 45Hz~65Hz | |||
Resolution | 1V | |||
Accuracy | ±(3%+3) | |||
Features | ||||
Display count | 999 | |||
Power off gear | √ | |||
Low battery
indication | <7.2V | |||
APO | Auto power off fuction | |||
LCD backlight | √ | |||
Data hold | √ | |||
Phase angle
selection | 0° and 180° | |||
Connections check | Simultaneously test
the trip time and trip current | |||
AUTO RAMP | √ | |||
Disconnect buzzer | √ | |||
Over-range display | OL | |||
Fused | √ | |||
Mis-operation buzzer | √ | |||
Power off buzzer | √ | |||
Full icon display | √ | |||
Compliance standard | IEC 61010-1, IEC
61010-2-030, IEC 61010-2-033, IEC 61557-1:2007;IEC 61557-6:2007, EN61326-1,
EN61326-2-2 | |||
Lead sequence check | LCD | |||
General Characteristics | ||||
Power | 1.5V battery (LR6) x
6 | |||
Display | 71mm x 34mm | |||
Product color | Red and grey | |||
Product net weight | 400g | |||
Product size | 160mm x 100mm x 71mm | |||
Standard accessories | Test line, carrying
bag, elastic strap | |||
Standard individual
packing | Gift box, English
manual | |||
Dual Voltage Diagnostics and Phase Angle Selection
Beyond residual current testing, the UT582+ functions as an AC mains line analyzer capable of measuring voltages between 30V and 600V AC across 45Hz to 65Hz frequencies. It provides dedicated modes for Line-to-Neutral (L-N) and Line-to-Protective Earth (L-PE) configurations, assisting in the detection of floating grounds, reversed wiring, or voltage drops before trip tests are initiated. A selectable 0-degree and 180-degree phase angle switch ensures balanced evaluation across alternating half-cycles, preventing false pass readings on asymmetrical fault currents.
Ergonomic Architecture and Industrial Safety Ratings
Constructed for rugged field service, the UT582+ features an impact-resistant housing fitted with a large 999-count backlit LCD display that displays measurement values, operational status icons, and wiring connection integrity indicators simultaneously. Intelligent power features include automatic data hold, low battery alert, and an automatic shut-off function to maximize operational longevity from standard batteries. Certified to IEC 61010-1 CAT III 600V safety standards, the meter delivers reliable insulation protection against transient voltage spikes in commercial and industrial sub-distribution panels.


