Socket & See CB400 Non-Trip Installation Testing Calibration Checkbox

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  • Validate instruments through regular self-calibration checks
  • Non-trip RCD testing method
  • Insulation, continuity, loop, RCD and loop check capability

rrp £399.95

now £249.95 (Ex. VAT) £299.94 (Inc. VAT)

rrp £399.95


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  • Description

    Socket & See CB400 Non-Trip Installation Testing Calibration Checkbox

    The Socket & See CB400 Non-Trip Installation Testing Calibration Checkbox performs reliable installation checks, ensuring test equipment meets current wiring regulations. The CB400 is capable of checking six insulation, three loop check, five RCD and five continuity levels (plus checks installation testing correct output).

    The CB400, featuring a useful null facility, operates correctly with all leading makes of Insulation/Continuity, Loop and RCD testers regardless of multifunction or single operation. Designed to be exceedingly user friendly, simply plug the checkbox into the mains supply before connecting your equipment and recording the results.

    Contained within a tough, drop-proof watertight case for use on site and easy carrying capability, the CB400 offers compliance to - BS EN 61557 Test Instrument Requirements.

    Key Features

    • Non-Trip Installation Testing Calibration Checkbox
    • Installation checks guarantees equipment conforms to regulations
    • Check six insulation levels - 0.25, 0.5, 1.0, 2.0, 10 & 200MΩ
    • Three Loop check levels
    • Five checks covering 30mA and 100mA RCD's
    • Five continuity check levels - 0.5, 1.0, 2.0, 100 & 2000Ω
    • Checks RCD over current test
    • Null facility to remove lead resistance
    • Rugged, IP54 rated outer casing
    • Full calibration documentation

    Socket & See Part Number: SOC/CB400

  • Specification


    FunctionCheck ValuesAccuracyRating
    Insulation Test 0.25MΩ 1% Up to 1000V
    0.5MΩ 1% Up to 1000V
    1.0MΩ 1% Up to 1000V
    2.0MΩ 1% Up to 1000V
    10MΩ 1% Up to 1000V
    200MΩ 1% Up to 1000V
    Output Voltage 3
    250V @ 0.25MΩ N/A
    500V @ 0.5MΩ
    1000V @ 1.0MΩ
    Continuity Test Null 1% ±20mΩ Current rating 1A
    0.5Ω 1% ±20mΩ Current rating 1A
    1.0Ω 1% ±20mΩ Current rating 1A
    2.0Ω 1% ±20mΩ Current rating 1A
    100Ω 1% Current rating 250mA
    2000Ω 1% Current rating 25mA
    Loop Test Local N/A Current Rating:
    25A (pulsed)
    10ms pulses
    Additional 1Ω 1% ±20mΩ
    Additional 100Ω 1%
    RCD Test 30mA (x1) 5% 30mA AC type
    30mA (x5) 5% 30mA AC type
    30mA (x1/2) 5% 30mA AC type
    100mA (x1) 5% 100mA AC type
    30mA (x1/2) 5% 30mA AC type
    and ACS type
    Current Break
    38ms ± 1ms N/A N/A
    LED for Current
    >200mA @ 2Ω 1%
    Case size 328 x 230 x 125mm
    Safety Complies with IEC EN 61010
    Weight 2.42kg
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  • Delivery Information

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    We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink.

    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 3-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £7.50
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    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

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