HT Instruments HT38 – Circuit Breaker Finder

AUD $110.00 • ( AUD $121.00 inc. GST )

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    HT38 is essential to identify the circuit breaker protecting a given socket on a panel board without having to dissect it. 

    HT38 includes a signal generator (HT38T) to be connected to the socket under test and a signal receiver (HT38R) capable of  “exploring” all RCCBs of the panel board.

    • Visual LED indication and acoustic indication with variable tone
    • Localization of protection devices
    • Use in live circuits with a voltage up to 250VAC to earth
    • LED indication of low battery charge
    • Auto power off

    PDF Datasheet  HT38 Datasheet

    Category: Tags: ,

    Frequently questions from our customers:

    Q: Why getting HT38?
    A: Because it permits to detect the RCCB of the line without having to dissect it. Q: Should the receiver be brought into contact with the RCCB’s terminals?
    A: No, you just need to put the receiver HT38R on the RCCB’s casing to detect the signal generated by the transmitter HT38T

    Q: Which is the maximum distance between a socket and the corresponding RCCB to be detected?
    A: The maximum distance between HT38T (connected to the above said socket) and HT38R is 300m (on networks with rated voltage of  110V L , N) and is 500m (on networks with rated voltage of  230V L , N)

    Q: According which principle does the instrument work?
    A: The instrument works according to PLT principle. HT38T releases a signal  into  the cable under  voltage which can be identified  by the receiver HT38R.

    Weight 0.45 kg


    General Specifications
    Transmitter HT38T
    Power supply 110V / 230VAC, 50/60Hz
    Signal output current <20mA
    External connection integrated Schuko Europlug
    Distance from receiver max 500m (1640ft) (230V mains supply)
    max 300m (984ft) (110V mains supply)
    Operating temperature 0°C ÷ 40°C (32°F ÷ 104°F)
    Operating humidity <80%RH
    Storage temperature 0°C ÷ 50°C (32°F ÷ 122°F)
    Storage humidity <95%RH
    Size (L x W x H) 95 x 60 x 30mm (4 x 2 x 1in)
    Weight 140g (5 ounces)
    Receiver HT38R
    Power supply 1x9V alkaline battery type IEC 6F22
    Battery life approx. 19 hours
    Auto Power OFF after 3 minutes’ idling
    Operating temperature 0°C ÷ 40°C (32°F ÷ 104°F)
    Operating humidity <80%RH
    Storage temperature 0°C ÷ 50°C (32°F ÷ 122°F)
    Storage humidity <95%RH
    Size (L x W x H) 195 x 60 x 35mm (8 x 2 x 1in)
    Weight 130g (5 ounces)
    Mechanical protection IP40
    General specifications
    Safety IEC/EN61010-1
    EMC IEC/EN61326-1
    Insulation double insulation
    Pollution level 2
    Measurement category CAT III 250V
    Max operating altitude 2000m (6562ft)


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