TDB... - Stromtransformatoren für die Zusammenarbeit mit dem aktuellen Relais Typ B
TDB... - Stromtransformatoren für die Zusammenarbeit mit dem aktuellen Relais Typ B
TDB... - Stromtransformatoren für die Zusammenarbeit mit dem aktuellen Relais Typ B
TDB... - Stromtransformatoren für die Zusammenarbeit mit dem aktuellen Relais Typ B
TDB... - Stromtransformatoren für die Zusammenarbeit mit dem aktuellen Relais Typ B
TDB... - Stromtransformatoren für die Zusammenarbeit mit dem aktuellen Relais Typ B
TDB... - Stromtransformatoren für die Zusammenarbeit mit dem aktuellen Relais Typ B
TDB... - Stromtransformatoren für die Zusammenarbeit mit dem aktuellen Relais Typ B

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Hersteller: FRER

TDB ... - Stromwandler für Erdschlussrelais

TDB series current transformers are designed to work with [Type B Earth Leakage Relays].

TDB current transformers are designed to measure AC and DC currents in the DC-10 kHz band with a resolution of 1 mA. They feature an integrated zeroing (demagnetization) function, which is activated upon power-up or remotely via the TEST RESET input. This function eliminates current errors (DC offset) caused by the Earth's magnetic field, temperature drift, vibrations, mechanical shocks, etc. The RMS current measurement error (AC+DC) is proportional to the line current and depends on the geometric arrangement of the conductor through the transformer opening and the distance between adjacent transformers.



Technical data

Parameter Value
Self estinguishing (Thermoplastic material) UL 94-V0
Residual current measure IΔ Typ B – TRMS
Measure full range TDB…3CM: IΔ1mA÷1,5Aac±2,1Adc
TDB…003: IΔ 10mA÷15Aac±21Adc
TDB...050: IΔ100mA÷50Aac±70Adc
Sensor degauss 500ms voltage pulse
DC offset after degauss TDB…3CM < ±1mAdc
TDB...003: < ±5mAdc
TDB...050: < ±50mAdc
Line current error with centred cables <30μA/A (<3mArms@100A)
Sensor connections 4 wires [+Vcc,GND, Vref, Vin]
Sensor cables 4 wires 1mm2
Bandwidth DC – 10kHz (-3dB)
Shield High EMI environments
Maximum cable length 10m
Maximum operating voltage 720 Vac
Reference voltage 0,72 kV
Test voltage 3kV, 50Hz, 1min.
Protection degree IP20
Manufactured according to IEC61010-1, IEC 60947-1
Operating temperature 0…+50˚C
Storage temperature -20...+70°C



Core dimensions Current range
IΔn 30mA÷1,5Aac IΔn 300mA÷15Aac IΔn 1A÷50Aac
Ø 28 mm TDB0283CM TDB028003
Ø 28 mm TDB0603CM TDB060003
Ø 28 mm TDB0903CM TDB090003
Ø 28 mm TDB1103CM TDB110003
Ø 28 mm TDB160003
Ø 28 mm TDB210003
325 x 125 mm TDB321050*
470 x 160 mm TDB471050*

*available only for the appropriate relays X..DB3050...



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TDB series current transformers are designed to work with [Type B Earth Leakage Relays].

TDB current transformers are designed to measure AC and DC currents in the DC-10 kHz band with a resolution of 1 mA. They feature an integrated zeroing (demagnetization) function, which is activated upon power-up or remotely via the TEST RESET input. This function eliminates current errors (DC offset) caused by the Earth's magnetic field, temperature drift, vibrations, mechanical shocks, etc. The RMS current measurement error (AC+DC) is proportional to the line current and depends on the geometric arrangement of the conductor through the transformer opening and the distance between adjacent transformers.



Technical data

Parameter Value
Self estinguishing (Thermoplastic material) UL 94-V0
Residual current measure IΔ Typ B – TRMS
Measure full range TDB…3CM: IΔ1mA÷1,5Aac±2,1Adc
TDB…003: IΔ 10mA÷15Aac±21Adc
TDB...050: IΔ100mA÷50Aac±70Adc
Sensor degauss 500ms voltage pulse
DC offset after degauss TDB…3CM < ±1mAdc
TDB...003: < ±5mAdc
TDB...050: < ±50mAdc
Line current error with centred cables <30μA/A (<3mArms@100A)
Sensor connections 4 wires [+Vcc,GND, Vref, Vin]
Sensor cables 4 wires 1mm2
Bandwidth DC – 10kHz (-3dB)
Shield High EMI environments
Maximum cable length 10m
Maximum operating voltage 720 Vac
Reference voltage 0,72 kV
Test voltage 3kV, 50Hz, 1min.
Protection degree IP20
Manufactured according to IEC61010-1, IEC 60947-1
Operating temperature 0…+50˚C
Storage temperature -20...+70°C



Core dimensions Current range
IΔn 30mA÷1,5Aac IΔn 300mA÷15Aac IΔn 1A÷50Aac
Ø 28 mm TDB0283CM TDB028003
Ø 28 mm TDB0603CM TDB060003
Ø 28 mm TDB0903CM TDB090003
Ø 28 mm TDB1103CM TDB110003
Ø 28 mm TDB160003
Ø 28 mm TDB210003
325 x 125 mm TDB321050*
470 x 160 mm TDB471050*

*available only for the appropriate relays X..DB3050...



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