AR3DC / AR4DCT / TMCC DC network analyzers up to 1500 V DC
Country: Spain · Model: AR3DC / AR4DCT / TMCC
The AR3DC, AR4DCT and TMCC analyzers are intended for DC circuits from 12 to 1500 V DC, measuring voltage, current, power and energy and transmitting data over RS485. They are installed in substation control supply systems, on battery banks and UPS units, in telecom power supplies, electric transport and photovoltaic plants.
- Type of current
- direct
- Voltage
- AR3DC — 12/24/48/125 V DC; TMCC — 24/48/110/230/400 V DC (opt. 1000 V DC); AR4DCT — 1500 V DC
- Current measurement
- AR3DC — direct up to 40 A or external 60 mV shunt (50–1000 A); AR4DCT — 9 Hall sensors (up to 21/33 with MR4DC modules); TMCC — In/60 mV shunt
- Outputs
- TMCC — 2 relay, analog 4–20 mA
Technical specifications
| Type of current | direct |
|---|---|
| Voltage | AR3DC — 12/24/48/125 V DC; TMCC — 24/48/110/230/400 V DC (opt. 1000 V DC); AR4DCT — 1500 V DC |
| Current measurement | AR3DC — direct up to 40 A or external 60 mV shunt (50–1000 A); AR4DCT — 9 Hall sensors (up to 21/33 with MR4DC modules); TMCC — In/60 mV shunt |
| Outputs | TMCC — 2 relay, analog 4–20 mA |
| Communication | RS485 Modbus RTU |
| Mounting | DIN rail (AR3DC, AR4DCT — 4 modules, 70 mm); TMCC — panel-mounted with 3 LCD indicators |
| Electrical safety | EN 61010, class 2, cat. III |
| Insulation | >2 kV AC (AR4DCT) |
| Extra functions | temperature sensor (AR4DCT) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The modular AR3DC for a DIN rail has a programmable microprocessor, an LCD and voltage inputs of 12, 24, 48 or 125 V DC. It measures current up to 40 A with a built-in shunt, and for 50–1000 A an external shunt with a 60 mV voltage drop is connected. Values alternate on the display every 2 s, the device has programmable contacts, self-powering and RS485 with Modbus RTU, and it connects to Ethernet and Wi-Fi through external gateways. The electrical safety of the AR3DC complies with EN 61010, class 2, category III. The Hall-effect AR4DCT is rated for a nominal voltage of 1500 V DC, that is, for the DC circuits of solar power plants, and its outputs are made as an open contact or an NPN optocoupler. The TMCC in a panel case with three LCD indicators and a keypad works on 24/48/110/230/400 V DC, optionally 1000 V DC, and has two relay outputs, a 4–20 mA analog output and optional RS485 with Modbus RTU. The TMCC reactive energy error is stated in the documentation as 1 % (reading + full scale), and conformity is confirmed by a CE declaration.
How to choose
The first selection criterion is the rated voltage of the circuit. For control supply boards of 12–125 V with a load up to 40 A the compact AR3DC is suitable, and it measures larger currents through an external 60 mV shunt. String and inverter boards of solar plants at 1500 V DC with many lines require the AR4DCT, whose number of current inputs can be increased from 9 to 33. The TMCC is chosen for a board door when relay signalling and a 4–20 mA analog signal for a PLC are needed.
Request a price and lead time
AR3DC / AR4DCT / TMCC DC network analyzers up to 1500 V DC. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How can the AR3DC analyzer measure a current above 40 A?
For currents above 40 A an external shunt with a 60 mV voltage drop is connected to the device, and the range of such measurement is 50–1000 A.
How many current inputs does the AR4DCT have for solar string boards?
As supplied the device has 9 Hall sensors, one MR4DC expansion module increases the number of current inputs to 21, and two modules to 33.
What rated voltages does the TMCC have and how does it measure current?
The versions are rated for 24, 48, 110, 230 and 400 V DC, optionally 1000 V DC, and the TMCC measures current through an In/60 mV shunt.
What insulation and dimensions does the AR4DCT have?
The AR4DCT insulation exceeds 2 kV AC, the device occupies 4 DIN rail modules with a width of 70 mm and has a built-in temperature sensor.
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