Gen5 Passive Component Setup

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Vref = 4.096V

CT Current Transformers

Sensor Range
(Rms Amps)
Burden Resistor
RD1 (Ω)
Calibration Coefficient
(theoretical)
SCT-019-000 200 43 139.535
SCT-013-000 100 27 74.074
60 47 42.553
50 56 35.714
40 71.5 27.972
30 91 21.978
25 110 18.182
20 140 14.286
SCT-006-000 20 56 14.286
SCT-024 400A:5A 400
SCT-024 400A:100mA 400 14.3 279.72
SCT-031 600:100mA 600 14.3 419.58

AC Voltage

All voltage reported as RMS value in the table below.

Sensor Range
@ sensor input
Range
@ board input
RD1 (Ω) RD2(Ω) Gain Resistor
RF (Ω)
Gain Resistor
RG (Ω)
Calibration Coefficient
(theoretical)
Any ac/ac adaptor
up to 18V output
(EU) 77DE-06-09: 360V
(UK) 77DB-06-09: 372V
(US) 77DA-10-09: 180V
18V 53.6kΩ 4.7kΩ 0 (EU) 77DE-06-09: 248.1
(UK) 77DB-06-09: 256.6
(US) 77DA-10-09: 124.0
ZMPT_1X_225* 408V 0.25V 22kΩ 4.7kΩ 281.65
ZMPT_1X_280 290V 0.15V 42.2kΩ 4.7kΩ 200.43
ZMPT_1X_140 145V 0.15V 42.2kΩ 4.7kΩ 100.21
  • ZMPT_1X_225 is no longer used. Listed here for reference.

Vref = 3.3V

AC Voltage

All voltage reported as RMS value in the table below.

Sensor Range
@ sensor input
Range
@ board input
RD1 (Ω) RD2(Ω) Gain Resistor
RF (Ω)
Gain Resistor
RG (Ω)
Calibration Coefficient
(theoretical)
Any ac/ac adaptor
up to 14.5V output
(EU) 77DE-06-09: 290V
(UK) 77DB-06-09: 300V
(US) 77DA-10-09: 145V
14.5V 53.6kΩ 4.7kΩ 0 (EU) 77DE-06-09: 248.1
(UK) 77DB-06-09: 256.6
(US) 77DA-10-09: 124.04
ZMPT_1X_225* 329V 0.2V 22kΩ 4.7kΩ 281.65
ZMPT_1X_280 291V 0.145V 33kΩ 4.7kΩ 249.34
ZMPT_1X_140 145V 0.145V 33kΩ 4.7kΩ 124.67
  • ZMPT_1X_225 is no longer used. Listed here for reference.