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Martindale FD550 Elite Fuse Finder Kit

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  • Digital fuse finder kit with multi-level sensitivity for accurate fuse identification.
  • Bar graph display shows progressive indication of signal strength.
  • Includes a built-in non-contact voltage indicator.
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rrp £89.00

now £51.95 (Ex. VAT) £62.34 (Inc. VAT)

rrp £89.00


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"A simple and easy way to find the fuse or circuit breaker you're looking for."

  • Description

    Martindale FD550 Elite Fuse Finder - MARFD550

    The Martindale Elite Fuse Finder receiver FD550 brings microprocessor controlled multi level sensitivity to fuse and breaker identification. A 6 segment bargraph gives progressive indication of signal strength allowing even faster identification. In addition the Elite receiver includes a non-contact voltage detector and can operate in two modes:

    Automatic, which has a memory and the ability to automatically adjust sensitivity for foolproof identification. Manual mode, which allows very rapid fuse finding using the bargraph.

  • Specification


    • Voltage rating: 230V
    • Frequency range: 30-70Hz
    • Switching frequency: Approx. 5Hz
    • Transmission pulse width: approx. 1.7μS
    • Transmission pulse amptitude: 20A max
    • Temperature range: -10°C to 40°C at max 60% RH
    • Dimensions: Approx: 65 x 65 x 46mm
    • Weight: 65g
    • Earth Leakage: Nil
    • Power supply: From mains
    • Power consumption: Approx. 1W
    • Overvoltage category: Cat III/300V
    • Pollution degree: 2
    • Protection Class: IP20


    • Tracing depth for fuse assignment: approx. 0 - 10cm, depending on local conditions.
    • Sensitivity setting: via on/off potentiometer
    • Temperature range: -10°C to 40°C at max 60% RH
    • Dimensions: 202 x 32 x 22mm.
    • Weight: 150g (Excluding battery)
    • Protection class: IP20
    • Power supply: 9V battery, MN1604/PP3, IEC 6LA61 (alkaline only)

    Voltage Indicator

    • Voltage range: 40 - 600 V
    • Sensitivity: Indication distance from a flat PVC 1mm2 twin and earth cable suspended in free space. 3mm at 110V AC 50Hz. 23mm at 240V AC 50Hz.
    • Frequency range: 50Hz to 50kHz
    • Indication: Red LED and audible tone (2kHz) in the presence of an AC voltage. Green LED indicates internal battery condition.
    • Operating temperature: -5° to 40°C
    • Not recommended for use on high energy circuits.
    • Units are EMC compliant.
    • There are no user serviceable parts in the transmitter or receiver.
  • Supplied Accessories

    • FD650/R receiver
    • FD500/T transmitter
    • Battery
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    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

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    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

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