Description
The Kyoritsu 3125A and 3125B are professional-grade digital high voltage insulation testers engineered for rigorous diagnostic testing of industrial electrical infrastructure. Designed to evaluate the integrity of insulation in cables, motors, and transformers, these instruments deliver precise resistance measurements up to 1TΩ across five selectable test voltages ranging from 250V to 5000V. Built with Original Engineering standards, the 3125 series ensures maximum Technical Compatibility with heavy-duty maintenance protocols, offering automated diagnostic functions such as Polarization Index (PI) and Dielectric Absorption Ratio (DAR) calculations.
Technical Specifications:
Test Voltages: 250V, 500V, 1000V, 2500V, 5000V
Max Insulation Resistance: 1TΩ (1000GΩ)
Short Circuit Current: 1.5mA
Voltage Measurement: AC 30V to 600V (50/60Hz), DC 30V to 600V
Accuracy: ±5% rdg ±3 dgt
Display: Large digital LCD with bar graph and backlight
Safety Standard: IEC 61010-1 CAT IV 300V, CAT III 600V
Ingress Protection: IP65
Operating Temperature: -10°C to 50°C
Power Source: 8 x LR14 (C size) alkaline batteries
Dimensions: 177(L) x 226(W) x 100(D) mm
Weight: 1.9 kg
Advanced Diagnostic Features:
The unit features an automatic discharge function that safely dissipates residual circuit charge post-testing, protecting both the operator and the equipment. The integrated timer and continuous measurement mode allow for extended testing cycles without manual intervention. A robust filter function minimizes interference in high-noise environments, ensuring stable readings during critical substation or switchgear evaluations.
Industrial Application Scenario:
This high-voltage tester is indispensable for predictive maintenance in power generation facilities and heavy manufacturing plants. By utilizing the 5kV output to stress-test high-capacity transformer windings and industrial motor stators, technicians can identify micro-fissures or moisture ingress in the dielectric material before catastrophic failure occurs.
Procurement and Lifecycle Value:
Sourcing this authentic Kyoritsu instrument guarantees reliable field performance and adherence to global safety compliance. Contact our procurement team to confirm current Lead Time and secure this essential diagnostic tool for your electrical maintenance fleet.
Key Attributes
Accuracy Class: ±2%
Current Range: 1.5 mA
Insulation Resistance: 1000 GΩ
Measuring Range: 100 MΩ to 1000 GΩ
Testing Voltage: 0 to 600 V
Place of Origin: Thailand
Model Number: KEW3125A
Brand Name: Kyoritsu
Current Resolution: 1 mA
Dimensions: 28 * 16 * 12cm
Display Type: Digital Only
Operating Temperature: -20 to 50°C
Speed Range: 10 m/s
Time Resolution: 1 ms
Rated Voltage/Accuracy: 100 MΩ to 1000 GΩ
Short Circuit Current: 1.5 mA
Measuring Range AC: 30 to 600 V
Power Source DC12V: 8 x LR14/R14
Weight: 3.7 lbs (1678.3 g)
Packaging and Delivery
Selling Units: Single item
Single package size: 37X35X17 cm
Single gross weight: 4.000 kg
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