Description
The UNI-T UT251C+ is engineered for precision AC leakage and ground fault detection in mission-critical electrical infrastructures. Utilizing specialized Permalloy magnetic shielding and a high-permeability magnetic core, the instrument provides superior immunity to external electromagnetic interference (EMI/RFI), ensuring microampere-level measurement fidelity. Integrated True RMS processing algorithms enable accurate quantification of non-sinusoidal waveforms generated by variable frequency drives (VFDs), switching power supplies, and non-linear industrial loads. Integrated Bluetooth telemetry allows continuous data streaming and remote trend analysis via dedicated mobile and supervisory platforms, minimizing operator exposure in high-voltage environments.
Technical Specifications:
Manufacturer: UNI-T (Uni-Trend Technology)
Model Number: UT251C+
Measurement Function: AC Leakage Current, AC Load Current
Current Measurement Range: 0.001 mA to 60.00 A AC
Measurement Resolution: 1 µA (0.001 mA)
Basic Accuracy: ±1.5% rdg ± 5 dgt (50 Hz / 60 Hz)
Frequency Response: 45 Hz to 1000 Hz
RMS Measurement: True RMS
Jaw Capacity: Ø 35 mm
Display Type: 4-Digit Backlit LCD (9999 Count)
Sampling Rate: 2 conversions per second
Peak Value Capture: Peak Hold mode (PEAK)
Data Hold Function: Integrated (HOLD)
Data Transmission: Bluetooth Low Energy (BLE) Data Transfer
Data Logging Capacity: Internal memory with companion app export (CSV/Excel)
Over-Range Indication: OL display symbol
Line Voltage Rating: 600 V AC max line-to-line
Power Supply: 4 × 1.5 V AA (LR6) Alkaline Batteries
Auto Power-Off: 5 minutes automatic idle shutdown
Operating Temperature: -10 °C to +40 °C
Storage Temperature: -20 °C to +60 °C
Operating Humidity: ≤ 80% RH (non-condensing)
Safety Category: IEC/EN 61010-1, IEC/EN 61010-2-032, CAT III 600V
Pollution Degree: Class 2
Certifications: CE, RoHS
Weight: 460 g
Dimensions: 215 mm × 100 mm × 35 mm
Technical Compatibility and System Integration:
The UT251C+ demonstrates direct Technical Compatibility with primary and secondary industrial low-voltage distribution panels, motor control centers (MCC), solar photovoltaic string combiners, and data center uninterrupted power supply (UPS) grounding networks. The Bluetooth communication stack interfaces with standardized asset management protocols to facilitate predictive maintenance logging without physical cable routing.
Target Industrial Application Scenario:
Optimized for predictive maintenance diagnostics in continuous manufacturing plants where unexpected residual current circuit breaker (RCCB/RCD) tripping causes costly downtime. The 1 µA resolution allows field engineers to isolate progressive dielectric breakdown and insulation deterioration in feeder cables, transformer neutrals, and multi-phase motor windings live, eliminating the need for scheduled plant shutdowns.
Commercial and Delivery Data:
Procurement Lead Time: Standard dispatch within 2 to 5 business days for factory-calibrated stock units.
Packaging: Impact-resistant industrial carry case with NIST-traceable factory verification documentation available upon request.
Key Attributes
Clamp Opening Size: 40mm
Max. Ac Current: 60.0A
Max. DC Current: 60.0A
Measuring Voltage Range: 400m-/600V
Place of Origin: Guangdong, China
Model Number: UT251C+
Brand Name: UNI-T
Accuracy Class: ±(1.0% + 5)
Dimensions: 200.1*70.5*40mm
Display Type: Digital Only
Instrument Safety Rating: CAT III 600V
Measuring Capacitance Range: /
Measuring Current Range: 60A
Measuring Inductance Range: /
Measuring Resistance Range: 400Ω/4kΩ/40kΩ/400kΩ/4MΩ/40MΩ
Operating Temperature: /
Weight: 350g
Packaging and Delivery
Selling Units: Single item
Single package size: 20X10X8 cm
Single gross weight: 1.000 kg
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