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AC/DC current transformer with energy meter functionality SIRAX BT7300 / BT7350

Safety instructions

The unobjectionable and hazard-free operation presupposes that the

safety instructions as well as Device Manual, electronically downloa-

dable via www.camillebauer.com, have been read and understood.

Please refer to our operating instructions for details. Downloadable

from our website www.camillebauer.com

The installation and commissioning should only be carried out by trained

personnel.

Check the following points before commissioning:

- that the connection wires are not damaged, and that they are not live during

wiring

- that the power flow direction and the phase rotation are correct

The instrument must be taken out of service if safe operation is no longer pos-

sible (e.g. visible damage). In this case, all the connections must be switched

off. The instrument must be returned to the factory or to an authorized service

dealer.

It is forbidden to open the housing and to make modifications to the instrument.

The instrument is not equipped with an integrated circuit breaker. During instal-

lation check that a labeled switch is installed and that it can easily be reached

by the operators.

The device is maintenance free. Unauthorized repair or alteration of the unit

invalidates the warranty.

Application area

The SIRAX BT7300 and BT7350 are current transformer with energy meter functionality

for monitoring 1-phase AC and DC systems up to a maximum current of 300 A AC and

400 V DC, and up to a maximum voltage of 800 V AC and 1000 V DC. The current

measurement is galvanically separated from the measured line. With the ability to

measure currents with different frequency ranges, the AC/DC current transformers are

the ideal solution for monitoring photovoltaic systems, battery charging systems, UPS

systems, variable frequency drives.

Mounting and installation

Ensure a safe working environment during assembly, installation

and maintenance work. Disconnect the power supply of the

primary conductor and secure it against unintentional reconnec-

tion.

•

Mounting is via screw grooves for vertical and horizontal panel mounting or

via fastening elements for vertical and horizontal DIN rail mounting.

•

The installation of the devices is arbitrary.

•

Now connect the device according to the wiring diagram.

Electrical connections

Attention: Danger to life! Ensure that all leads are free of potential

when connecting them!

Please observe that the data on the type plate must be adhered to !

The national provisions have to be observed in the installation and

material selection of electric lines!

± 1000 / 100 VDC

± 800 / 80 VAC

LOAD

RS485

USB

Connection scheme BT7300 / BT7350

Technical data

Input

Type of measure

; V

; Watt, VAR; VA; V

Available measurands

rms

Input range current

Input range voltage

800 V AC / 1000 V DC

Power supply

Absorption

Output

Output range

Sampling rate

Working frequency

Accuracy

(@25°C up to 400Hz)

Resolution

Temperature coefficient

Crest factor

Input impedence

Environmental conditions

Working temperature

Storage temperature

Humidity

Altitude

Safety

Overvoltage category

CATIII up to 600 V; CATII up to 1000 V

Isolation

Protection class

Mechanical properties

Housing material

Filling

Flammability

UL94 V-0, self-extinguishing, non-dripping, halogen-free

Weight

DIP switch

Permanent yellow (Power ON)

LED

Blinking yellow (communication)

Dimensions

Connections

Cross-sectional area

Torque

Standards

Adhered standards

DIP switch settings BT7300 / BT7350

Description

All settings from EEPROM

Set Address 1 - Baud 9600

Set Address 1 - Baud 38400

Configuration via software

The SIRAX BT7300 and BT7350 can be configured via the free programming software.

This is downloadable on our homepage. The programming instructions can be found in

the corresponding operating manuals for the products.

SIRAX BT7300

SIRAX BT7350

TRMS (monopolar) or DC

; I

; Freq; Cosφ; THD; ΣkW; +kW/h; -kW/h;

min/max of rms measurement

300 A AC / 400 A DC

80 V AC / 100 V DC

9 ... 30 V DC

< 1.3 W

RS485 (Modbus RTU)

11k Samples per Second

DC or 1 ... 400 Hz

Voltage, Current, Active Power: < 0.5% F.S.

Frequency: ± 0.1 Hz

Energy: ± 1% of reading

, I

: ± 5% F.S.

peak

12 bit

< 200 ppm/°C

1.4 (on current measurement)

1 MΩ ±1%

-15 ... +65 °C

-40 ... +85 °C

10 ... 90 % (not condensing)

max 2000 m

CATIV up to 100 V

3 kV on bare wire for Current measurement;

4 kV for Voltage measurement

IP20

PTB

Epoxy Resins

370 g

2 pole

Permanent yellow (Power ON)

89.1 x 99.25 x 28.5 mm (without terminals)

Plug-in terminals 3.5 mm, 1x4 Pole and 2x2 Pole

1.5 mm

max 0.25 Nm

EN61000-6-4; EN64000-6-2; EN61010-1