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Rayleigh Instruments - Earth Leakage Relays

DIN Rail and Panel mounted Earth Leakage Relays and Core Balanced current transformers for protection from residual current in a single-phase or three-phase circuit.

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  1. Earth Leakage Relay with LCD Display RI-ELR80

    Rayleigh Instruments RI-ELR80 Earth Leakage Relay with LCD Display

    • Two module DIN rail mounted
    • True RMS Earth leakage monitoring
    • Type A leakage detection
    • Digital indication of leakage current
    • Separate test and reset function
    • Single or three-phase network compatible
    • Transformer error detection Read More »
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  2. Earth Leakage Relays with Fixed Trip Levels

    Rayleigh Instruments RI-ELR20 Earth Leakage Relays with Fixed Trip Levels

    • 2 Module width DIN rail mounted
    • True RMS Earth Leakage monitoring
    • Type A leakage detection
    • LED bargraph indication of leakage current
    • Fixed trip presets (30mA, 100mA or 300mA)
    • Test and reset function
    • Single-phase (2 wire) or 3 pha...
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  3. Earth Leakage Relay with Integral Transformer

    Rayleigh Instruments RI-ELR00 Earth Leakage Relay with Integral Transformer

    • Single or three-phase network compatible
    • DIN Rail or Surface mount
    • Integral 35mm transformer
    • Monitor and detect true RMS earth leakage currents
    • Nuisance tripping protected
    • Microprocessor controlled
    • 30mA, 100mA or 300mA Versions Read More »
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  4. Earth Leakage Relay with Adjustable Trip - RI-ELR60

    Rayleigh Instruments RI-ELR60 Earth Leakage Relay with Adjustable Trip Level

    • 2 Module width DIN rail mounted
    • True RMS Earth Leakage monitoring
    • Type A leakage detection
    • Single phase or 3 phase
    • Selectable trip time delay
    • Selectable trip level
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  5. IME Delta D4-S RD1B Four Module Earth Leakage Relay

    IME Delta D4-S RD1B Four Module Earth Leakage Relay Alarm + pre-alarm or alarm function with 2 SPDT contact

    • DIN Rail mounting Earth Leakage Relay
    • Selectable set point
    • Field-selectable negative or positive security(fail safe)
    • Selectable set point 30mA…30A (19 ranges)
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  6. Thiim DDCA Differential DC Current Relay 55mm

    Thiim DDCA Differential DC Current Relay 55mm (5…200 mA IN, 4…12…20mA OUT)

    • Integral Transformer
    • Dipswitch selectable set-points : - 5, 10, 20, 50, 100, 200mA
    • Time range during run : Separate On and Off delay 0…10sec. adjustable
    • Response Time <200msec
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  7. Thiim DDEA 2050 PA4C

    Thiim DDEA DC Earth Leakage Relay 45mm

    • Monitors Insulation deterioration and faults
    • Programmable leak current limit
    • Monitors wide range of system voltages
    • Self-supplied from distribution system
    • Time delay individually adjustable
    • Relay function 2x1C/O (leak from + or -) or 1x...
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  8. RD1A - AC Earth Leakage Relay

    IME Delta D2-L RD1A Two Module Earth Leakage Relay With 1 Alarm & 1 Relay SPDT Output

    • DIN Rail mounting Earth Leakage Relay
    • Residual current
    • Selectable set point 30mA...30A (19 ranges)
    • Adjustable time delay 0.15-5s (30mA setting = 0s)
    • Use with DEL...N Range Of Core Balance Current Transformers
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  9. Thiim DDCA Differential DC Current Relay 35mm

    Thiim DDCA Differential DC Current Relay 35mm (5…200mA IN, 4…12…20mA OUT)

    • Integral Transformer
    • Dipswitch selectable set-points : - 5, 10, 20, 50, 100, 200mA
    • Time range during run : Separate On and Off delay 0…10 sec. adjustable
    • Response Time <200msec
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9 Item(s)

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