Megger M-THUMP5 Portable LV Cable Fault Location System
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    Megger M-THUMP5 Portable LV Cable Fault Location System

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    The Megger M-THUMP5 Portable LV Cable Fault Location System is a compact, high-performance tool for fast and accurate underground cable fault detection. Equipped with ARM®, TDR, ICE surge pulse, and DC HV testing, it delivers precise fault pre-location and pinpointing with automatic sequences, 1000 J surge energy, and a rugged IP53-rated enclosure for reliable field use.

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    SKU: 125594 Category:
    Brand:Megger

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    Description

    Megger M-THUMP5 Portable LV Cable Fault Location System overview

    The Megger M-THUMP5 is a professional portable low voltage cable fault location system engineered to help technicians and utilities quickly identify, pre-locate, and pinpoint cable faults in underground LV distribution networks.

    Advanced Fault Location Technologies

    Equipped with cutting-edge diagnostic methods, the M-THUMP5 ensures accurate and repeatable results in every situation:

    • Arc Reflection Method (ARM®)

    • Time Domain Reflectometry (TDR)

    • ICE surge pulse

    • DC high-voltage testing

    These combined technologies make the system ideal for both fault pre-location and precise pinpointing.

    High Energy Output and Performance

    With an energy output of 1000 J at 5 kV, the M-THUMP5 delivers powerful surge testing for fast fault pinpointing. Its 7-inch HiBrite TFT display offers daylight-proof visibility, while automatic test sequences simplify operations and minimize downtime. The unit automatically interprets fault type (open, short, burnt) and adjusts the thump voltage for optimal efficiency.

    Rugged Design for Field Use

    Built for real-world conditions, the Megger M-THUMP5 features a:

    • Heavy-duty aluminum enclosure with integrated handles

    • Wide operating temperature range: -20 °C to +50 °C

    • IP53 rating for dust and water protection

    This ensures maximum durability, portability, and reliability in demanding environments.

    Megger MTHUMP5 Applications

    The M-THUMP5 is the go-to solution for:

    • Utilities and power distribution companies

    • Contractors and service providers

    • Maintenance teams for LV cable testing

    • Secondary fault locating and proof testing

    Why Choose the Megger M-THUMP5?

    The Megger M-THUMP5 is not just a cable fault locator—it’s a complete LV cable fault location system that combines precision, durability, and ease of use. Whether in urban networks or industrial environments, this device ensures faster fault detection, reduced downtime, and lower maintenance costs.

    Datasheet

    Datasheet

    Mme-pdfs-image

    Specifications

    Specifications

    Parameter Details
    Impulse generator (thumper)
    Operating modes
    • Arc Reflection Method (ARM®) with multishot
    • ICE (Surge pulse)
    • Direct surge (thumping)
    • DC HV
    • DC-HV proof test with insulation resistance readout (Ω)
    • 2 Stage burning/fault conditioning
    • TDR ARM Burn Reflection with multishot
    • Sheath fault test and pinpointing / secondary fault locating
    TDR
    • TDR mode and all pre-location functions, max. range: 160,000 ft / 52 km
    • TDR with on-screen multi phase comparison
    • TDR ARM Burn Reflection with multishot
    Energy Output
    • Single stage: 1000 J at 5 kV
    • Proof test: 0–5 kV DC continuous
    • Burn current: 500 mA (0–1 kV), 70 mA (1–5 kV)
    Key Features
    • Single-shot thump in ARM with multishot TDR
    • Built-in inductive type ARM filter
    • TDR Burn ARM Reflection with multishot
    • 6 second thump cycle at max output
    • Automatic discharging of unit, test lead and tested circuit
    Display Features
    • HiBrite TFT color display, sunlight proof
    • 7 in display, 1280 × 800 pixel resolution
    Power 230 V, 50/60 Hz AC operation / internal isolation transformer
    SMART Features
    • Entirely automatic test sequences including proof test, pre-locate, and pinpoint
    • Automatic interpretation regarding type of fault (open, burnt in the clear, short)
    • Automatic adjustment of thump voltage (user selectable)
    • Automatic alphanumeric display of cable end and fault distance
    USB
    • Host interface 2.0
    • TDR trace export and system upgrades
    Certification EN ISO 17050-1:2010
    Test Leads (hardwired to unit)
    • 15 ft / 4.5 m HV cable
    • 15 ft / 4.5 m safety ground
    • (50 ft / 15 m are also available)
    Enclosure Heavy duty aluminium enclosure with handles
    Digital ‘Analog’ Meter Displayed on LCD screen
    Environmental
    • Operating temperature: -20 ºC to +50 ºC; -4 ºF to +122 ºF
    • Storage temperature: -25 ºC to +65 ºC; -13 ºF to +149 ºF
    IP Rating IP53 (with top open)
    Weight 51 kg / 112 lbs
    Dimensions 25 × 18 × 32 in (635 × 457 × 812 mm)
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