The PTA-T-1PH-xxx-VT models are isolated, non-contact, DC-powered AC/DC current transducers. The device’s appearance and operation are very similar to those of a standard active current transformer, but with the notable feature of measuring both the direct current and alternating current components.
The measured current value is transmitted via the 0–10 V output and made available, together with other data, via the RS485 port using the standard Modbus RTU protocol.
- The device is capable of measuring current in two different modes (via DIP switches or via the MyPixsysLab Windows PC software):
- TRUE RMS AC/DC CURRENT MEASUREMENT
BIPOLAR DC CURRENT MEASUREMENT (useful for determining the direction (plus/minus sign) of a direct current).
It is also possible to halve the transducer’s nominal full scale using a DIP switch. For example, the model with a full scale of 300A can operate on a scale of 0-300A or 0–150A without any loss of reading accuracy.
- Dimensions96,5 x 68 x 26 mm
- MaterialPA6, Red color
- Weight120gr
- SealingBox and terminal blocks: IP20
- Operating conditionsTemperature: -20..+70°C, Humidity: 10 ÷ 90% non condensing, Altitude: 2000m a.s.l. max
- Hole diameter20,8mm
- MountingFree-standing or on IEC EN60715 DIN rail with 2 accessories included
- ConnectionsRemovable 5-way screw terminals, 5,08 mm pitch, for cables up to 2.5 mm².
Through hole 20.8 mm (0.8 Inch) diameter - Communication portRS485 serial port on screw terminals A+ and B-
- Reference standardsEN 61000-6-4 Emission, industrial environmental
EN 61000-6-2 Immunity, industrial environmental
EN 61000-1 Safety - CE markyes
| ORDERING CODES | PTA-T-1PH-050-VT | PTA-T-1PH-300-VT |
|---|---|---|
| Power supply | On screw terminals Vcc and GND | |
| Tension | 11.5 – 28Vdc | |
| Max absorption | 1mA (with no load) | |
| INPUT | On through hole 20.8 mm diameter | |
| Type of measure | AC/DC True RMS or Bipolar DC | |
| Peak factor | 2 | |
| Pass-band | 1kHz | |
| Over-current | 2000 A impulsive, 300 A continuous | |
| Current-carrying capacity | AC/DC True RMS (DIP7=OFF): 0 – 25A or 0 – 50A; DC Bipolar (DIP7=ON): -25/+25A or -50/+50A | AC/DC True RMS (DIP7=OFF): 0 – 150A or 0 – 300A; DC Bipolar (DIP7=ON): -150/+150A or -300/+300A |
| OUTPUT | On screw terminals Vout and GND | |
| Type | 0 – 10V Minimum load R = 2 kΩ. | |
| Protections | Reversal polarity protection and over-voltage protection 13 bit (10k pts) | |
| Resolution | < 0.5% | |
| EMI error | < 200 ppm/°C | |
| Temperature coeff. | 0.2% of full-scale | |
| Measure hysteresis Response time | RMS: with ‘Fast’ filter 1400 ms, with ‘Slow’ filter 2900 ms.; Bipolar: with ‘Fast’ filter 78 ms, with ‘Slow’ filter 650 ms | |
| Type | Under 2% of full-scale: 1% of full-scale at 50/60Hz, 23°C; Over 2% of full-scale: 0,5% of full-scale at 50/60Hz, 23°C | |
| Over voltage category | Bare conductor: CAT.III 300V; Insulated conductor: CAT.III 600V | |
- PTA-T-1PH-050-VTTRMS AMPEROMETRIC TRANSF. 50A AC/DC 1PH - 0..10V/RS485 Modbus
- PTA-T-1PH-300-VTTRMS AMPEROMETRIC TRANSF. 300A AC/DC 1PH - 0..10V/RS485 Modbus