Megger Tdx120 12 Kv Dielectric Test Set – Ac &Amp;Amp; Dc Insulation Tester
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    Megger TDX120 Dielectric Test Set

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    The Megger TDX120 is a portable 12 kV dielectric test set for insulation testing in AC and DC, offering precise voltage regulation, full safety interlocks, and rugged portability—perfect for labs, substations, and industrial fieldwork.

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    SKU: 125558 Category:
    Brand:Megger

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    Description

    Megger TDX120 Dielectric Test Set overview | 12 kV AC/DC Insulation Tester

    The Megger TDX120 is a compact yet powerful dielectric test set designed for insulation testing of electrical equipment at voltages up to 12 kV AC and DC. Built for both laboratory and field applications, it provides accurate voltage regulation, precise measurement, and integrated safety systems to protect both operator and equipment.

    This unit is ideal for performing withstand tests, insulation breakdown evaluations, and routine quality checks in power utilities, transformer workshops, and industrial maintenance teams. With its rugged enclosure, user-friendly interface, and compliance with IEC standards, the TDX120 offers reliability and repeatability in even the most demanding environments.

    Megger TDX120 Key Features

    • 12 kV output for comprehensive insulation testing (AC/DC).

    • Compact & portable design with rugged case for field or lab use.

    • Accurate voltage regulation ensures stable testing conditions.

    • Safety interlocks and emergency stop features protect users and equipment.

    • Ideal for withstand and breakdown testing on cables, transformers, switchgear, and insulating materials.

    • Clear voltage and current metering for reliable readings.

    • Complies with international standards (IEC) for dielectric testing.

    Specifications

    Specifications

    Megger TDX120 Dielectric Test Set Specifications

    Environment
    Application Field For use in medium and high-voltage substations and industrial environments
    Operating Temperature -20 °C to +55 °C (-4 °F to +131 °F)
    Storage & Transport Temperature -40 °C to +70 °C (-40 °F to +158 °F)
    Humidity 0% – 95% RH, non-condensing
    CE Marking LVD 2014/35/EU, EMC 2014/30/EU, RoHS 2011/65/EU
    Standards & Classifications Vibration: IEC 60068-2-6
    Shock: IEC 60068-2-27
    Transport: ISTA 2A
    IP Rating: IEC 60529
    IP Rating Instrument only: IP20
    Instrument in hard case: IP21
    General
    Dimensions (Instrument only) 480 × 310 × 250 mm (18.9″ × 12.2″ × 9.8″) excl. handles
    Dimensions (Soft case) 690 × 450 × 390 mm (27″ × 18″ × 15″)
    Dimensions (Hard case) 690 × 410 × 450 mm (27″ × 16″ × 18″)
    Weight Instrument only: 23 kg (51 lb)
    In soft case: 27 kg (59 lb)
    In hard case: 35 kg (77 lb)
    Input
    AUX Power Input From TRAX (AUX Power) 0–240 V AC, 1–500 Hz
    AUX Control Input Power over Ethernet for supply and communication
    Output
    Voltage Ranges 0–250 V AC, 0–2 kV AC, 0–4 kV AC, 0–12 kV AC
    Frequency Ranges 1–505 Hz, 10–505 Hz, 15–505 Hz, 45–70 Hz
    Current Capability 500 mA (30 s), 300 mA (4 min), 200 mA (30 min), 100 mA (continuous)
    Extended Power Optional Resonating Inductor (Cat. No. 670600-1) allows 4 A at 12 kV
    Measurements
    Voltage 0 – 12 kV, resolution 0.1 V
    Current 0 – 5 A, resolution 0.1 μA (correctable to 10 kV equivalents)
    Capacitance 0 – 100 μF, resolution 0.01 pF
    Inductance 6 H – 10 MH, resolution 0.1 mH
    Power 0 – 1 MW, resolution 0.1 mW
    Power Factor 0 – 100% (0–1), resolution 0.001%
    Dissipation Factor (tan δ) 0 – 100 (0–10,000%), resolution 0.001%
    Accuracy – Internal Generator
    Capacitance ±0.5% of reading + 0.1 pF
    Dissipation Factor ±0.005%, Ix > 15 μA to 10 mA, Utest > 300 V
    Inductance ±0.5% of reading + 1 mH
    Watt Loss ±1% of reading + 1 mW
    Accuracy – External Generator & Reference
    Capacitance ±0.05% of reading + 0.1 pF
    Dissipation Factor ±0.005%, Ix 15 μA to 10 mA, Iref > 15 μA
    ±0.02%, Ix > 10 mA, Iref > 15 μA
    Inductance ±0.05% of reading + 1 mH
    Watt Loss ±1% of reading + 1 mW

    Datasheet

    Datasheet

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