VDT41M
- Suitable for three phase supplies up to 100A
- MID Approved
- Accuracy Class C (±0.5%)
- 4 module width, DIN rail installation
- Touch key design for easy setup and viewing of measurements
- Supports bi-directional measurement of active and reactive energy
- Multi-function parameter measurement for voltage, current, active power, reactive power, apparent power and power factor
- Offers RS485 Modbus communication and one passive pulse output
The VDT41M energy meter supports three phase and single phase direct connect loads up to 100A. This MID Approved meter can be used for billing applications and is highly accurate, class C (Cl. 0.5). It measures bi-directional energy, voltage, current, active power, reactive power, apparent power and power factor.
It provides an RS485 communication interface supporting Modbus and features a clear LCD screen. The touch key allows easy viewing of parameters and setup operations while the password protection function ensures data security.
Electrical Characteristics
| Rated voltage (Un) | 230/400V AC |
| Operational voltage | L-N: 85 to 275V AC; L-L: 85 to 480V AC |
| Overload capacity of voltage | 2 x Un for 1 second |
| Rate current(lb) I | 5A |
| Maximum current (lmax) | 100A |
| Minimum current (lmin) | 0.25A |
| Overload capacity of current | 30 x Imax for 0.01 second |
| Operational frequency range | 45 - 65Hz |
| Power consumption | <2W/10VA |
| Pulse constant | 400 imp/kWh |
| Display | LCD with backlight |
| Maximum reading of energy | 9999999.9 kWh/kVArh |
| Measurement type | 3P4W, 3P3W, 1P2W |
Measurement Accuracy
| Voltage, Current | ±0.5% |
| Active power | ±1.0% |
| Reactive power | ±2.0% |
| Apparent power | ±1.0% |
| Active energy | ±0.5% |
| Reactive energy | ±2.0% |
| Power factor | ±1.0% |
| Frequency | ±0.2% |
Environmental Characteristics
| Operating Temperature | -25 to +55°C |
| Storage Temperature | -40 to +80°C |
| Humidity | < 90%, non-condensing |
| Pollution Degree | 2 |
| Altitude | Up to 2000m |
| Vibration | 10 Hz to 150Hz, IEC 60068-2-6 |
| IP Degree of Protection | IP51 front display IP30 meter body |
Electromagnetic Characteristics
| Electrostatic Discharge | ±8kV (contact discharge) / ±15kV (air discharge) |
| Immunity to Radiated Fields | 10V/m, 80 - 2000MHz |
| Immunity to Electrical Fast Transients | ±4kV |
| Immunity to Surges | ±4kV |
| Immunity to Conducted Disturbances | 10V, 0.15-80MHz |
| Immunity to Magnetic Fields | IEC 61000-4-8 |
| Immunity to Voltage Dips | IEC 61000-4-11 |
| Radiated Emissions | Class B, according EN55011 |
| Conducted Emissions | Class B, according EN55011 |
| Harmonics Emissions | IEC 61000-3-2 |
Safety
| Overvoltage Category | CAT III, according to IEC 61010-1 |
| Measurement Category | CAT III, according to IEC 61010-1 |
| Insulation | AC Voltage Test: 4kV for 1 minute |
| Protective Class | II, according IEC61010-1 |
Communication
| Interfaces standard and protocols | 2-wire RS485, Modbus |
| Baud rate | 1200 to 38400 bps, default is 9600 bps |
| Parity bit | None, Even, Odd, default is None |
| Stop bit | 1 or 2, default is 1 |
| Response time | < 100ms |
| Transmission mode | Half-duplex |
| Transmission distance | Up to 1000m |
| Max. Bus loading | 64 pc |
Pulse Output
| Interface type | Open collector opto-coupler |
| Pulse constant | Per pulse equal 0.001 / 0.01 / 0.1 / 1 kWh/kVArh |
| Pulse width | 60 / 100 / 200 milliseconds |
| Pulse output type | Active energy / Reactive energy (Tot, Imp & Exp) |
| Class | Class A, according to IEC 62053-31 |
| Input voltage | 5 to 27 VDC |