AD-LU 655 GT

Description

The AD-LU 655 GT is a digital measuring transducer for the acquisition of all measured variables in the three-phase network. Currents are detected via external folding current transformers. In addition to the fundamental oscillations, the harmonics up to the 32nd harmonic are also measured for currents and voltages. In addition to the three phase currents, the current in the neutral conductor can also be measured. Any measured variable can be assigned to each analog output. Each digital output can be assigned its own function such as limit value monitoring or pulse output for an energy meter. All measured data can be read out via the Modbus-RTU interface. With an optional display device such as the AD-MM 400 FE or the AD-MM 500 FE, the data can be displayed and the device can be configured if necessary.

AD-LU 655 GT

Application

Transducer for a maximum of any 4 three-phase current quantities. Limiting value indicator for monitoring of a maximum of 2 three-phase current quantities. Registration of all relevant measuring quantities of the three-phase current network and supply of the measuring quantities via a modbus interface.

Business data

Order number
AD-LU 655 GT	Messumformer, externe Klappstromwandler
Accessory
USB programming adapter	VarioPass
Identifiers
EClass	27210124
Customs tariff number / country of origin	8543 70 90 / Deutschland

Information

Downloads
Data sheet	en-lu655gt.pdf (319 kB)
Safety instructions	ad-safety-instructions.pdf (43 kB)

Technical specifications

Voltage inputs L1, L2, L3 against N
Nominal voltage	230 V AC
Maximum voltage	300 V AC
Input resistance	1 MOhm
Peak load	600 V AC, 1s
Current inputs
Number	4 (L1, L2, L3 und N)
Rated current range	0 ... 33,3 mA AC
Current measurement	Externe Klappstromwandler
Input resistance	~10 Ohm
Analog outputs
Number	4
Type	Current or voltage, software configurable
Current outputs
Maximum output range	-21 ... 21 mA
Max. burden	400 Ohm
Max. residual ripple	40 µAss
Voltage outputs
Maximum output range	-10,5 ... 10,5 V
Min. burden	10 kOhm
Max. residual ripple	20 mVss
Digital outputs
Number	3
Type	Optisch, MOS-Relais
Maximum switching voltage	60 V AC/DC
Maximum switching current	550 mA AC/DC
Accuracy
Accuracy class	0,5%
Temperature influence	< 200 ppm/K
Frequency influence	~0,2 %, 40 ... 60 Hz
Influence of phase angle	~0,2 %, 40 ... 60 Hz
Response time	~500 ms, 10 ... 90 %
Communication interface
Physical	RS-485
Parameter	19200, 8, 1 , even
Protocol	Modbus RTU
Supply
DC	21 ... 253 V DC, 3,5 W
AC	50 ... 253 V AC, 6 VA
Housing
Type of protection	IP 20
Connection method	Screw clamp
Cross section fine wire	2,5 mm²
Cross section one wire	4 mm²
Mounting	DIN rail mounting
Weight	~400 g
Environmental conditions
Operating temperature	-10 ... 50 °C
Storage, transport	-25 ... 80 °C
Electromagnetic compatibility
Product family standard	EN 61326-1
Emission	EN 55011, CISPR11 Cl. B, Gr. 1
During an interference effect slight signal deviations are possible.
Electrical safety requirements
Product family standard	EN 60688
Overvoltage category	III
Pollution degree	2
Isolation-voltage	500 V AC
Test voltage input/output	5 kV RMS, 1 Min.
Test voltage output/supply	4 kV RMS, 1 Min.
Test voltage input/supply	5 kV RMS, 1 Min.

Block and wiring diagram

AD-LU 655 GT

Dimensions

AD-LU 655 GT

CAD / CAE Daten

CAD model is not yet available for this product.

The CAD product overview can be found at: adamczewski.partcommunity.com