AD-LU 50 GT

Description

The digital power measuring transducer AD-LU 50 GT measures all quantities of the three-phase network (current, voltage, energy, harmonics, phase angle, active power, reactive power, apparent power … ) and converts these measuring values onto two freely scalable analogue outputs (20 mA / 10 V). The unit is therefore optimal suitable for integration in energy management systems. 3- or 4-wire systems can be measured. 4-wire networks can be loaded balanced or unbalanced, whereby 3-wire networks can only be measured balanced. The AD-LU 50 GT is supplied via its measuring voltage L1. The current measuring is carried out via the bar-type transformer mounted on the front. For measuring of high voltages or high currents, external transformers can be connected in series at any time. The AD-LU 50 GT can be read out and parameterised via the integral interface with the aid of the available AD-Studio. An LED at the front signals the operating condition. The compact type of construction and the high performance ability with simultaneous low energy consumption allows usage in almost any application.

AD-LU 50 GT

Application

Typical usage in plant, machines or energy management systems for balancing and determination of energy distribution.

Specific characteristics

  • compact design
  • current measurement via clamp on current transfomrers
  • supplied via its measuring voltage L1
  • current and voltage output
  • monitoring all variables of the three-phase network
  • parameterization via AD-Studio

Business data

Order number
Power measurement transducer AD-LU 50 GT
AD-LU 50 GT
Accessory (optional)
VarioPass3 USB-inetrface adapter
AD-Studio Configuration software
Identifiers
EClass 27210124
Customs tariff number / country of origin 8543 70 90 / Deutschland

Information

Downloads
Data sheet pdf en-lu50gt.pdf (335 kB)
Tender text zip lu50gt.zip (17 kB)
STEP file step gt4a.step (6 MB)
Safety instructions pdf ad-safety-instructions.pdf (43 kB)

Technical specifications

Current-inputs (I1...I3)
Measuring ranges 0 ... 1 A AC; 0 ... 5 A AC;
0 ... 20 A AC
Max. conductor diameter 4,8 mm
Max. measurable harmonic 40
Voltage-inputs (L1...L3)
Measuring range 80 ... 253 V AC
Input resistance > 900 kOhm
Output current
Output range 0/4 ... 20 mA
Max. load 400 Ohm
Resolution 11 Bit
Residual ripple 25 µAss
Output voltage
Output range 0/2 ... 10 V
Min. load 10 kOhm
Resolution 11 Bit
Residual ripple 30 mVss
Supply
Voltage range AC 80 ... 253 V AC, 50/60 Hz (see voltage-inputs)
Nominal voltage AC 230 V AC
Power consumption Max. 3,9 VA
Transfer behavior - in reference to the current value
Basic accuracy < 0,5 % (class 0.5)
Temperature influence 80 ppm/K
Response time < 0,5 s
Housing
Dimensions (WxHxD) 71x90x70 mm
Type of protection IP 20
Connection method Screw clamp
Terminals, wire cross section 2,5 mm² flex wire / 4 mm² one wire
Bolting torque terminals 0,6 Nm
Skinning length 6 mm
Weight ~ 170 g
Manner of fastening 35 mm DIN rail 35mm
Environmental conditions
Ambient temperature -10 ... 50 °C
Storage and transport -10 ... 70 °C (no condensation)
EMC
Product family standard EN 61326-1 1)
Emitted interference EN 55011, CISPR11 Cl. B, Gr. 1
Electrical safety requirements
Product family standard EN 61010-1
Overvoltage category II
Pollution degree 2
Safety measurement EN 61010-2-030
Measurement category CAT III
Galvanic isolation, test voltages
Power supply to analog outputs 4 kV, 50 Hz (1 min.)
Power supply to relay 4 kV, 50 Hz (1 min.)
Relay to analog outputs 4 kV, 50 Hz (1 min.)
Protection circuits
Input Electrical surge protection
Power supply Protection against over-temperature, over-voltage and over-current
Analog outputs Electrical surge protection
1) During checking, slight signal deviations are possible.

Block and wiring diagram

AD-LU 50 GT

Dimensions

AD-LU 50 GT

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