TVR Instruments Measuring Power Protection LVD Distribution & Panel Building




Tel: 01206 575755

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Using a 4STD series flux concentrators allows the operating range of Type A/F (TDC series) and Type B (TDB series) earth leakage sensors to be extended, up to 6000A line current. This avoids sensor saturation and nuissance tripping of the relay.
  • 4STD210 - Flux concentrator for TDC160/TDB160 sensor
  • 4STD210 - Flux concentrator for TDC210/TDB210 sensor
  • 4STD350 - Flux concentrator for TDC350 sensor

Contact us for further details


  TVR Instruments Limited, 143 Butt Road, Colchester CO3 3DP, Essex, United Kingdom - Tel: +44 (0)1206 575755 - Email /
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