Contemporary Control Systems BACnet Cube I/O NG-4 Gray User Manual

Power supply ng4

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METZ CONNECT GmbH
Im Tal 2 | 78176 Blumberg | Germany | Phone +49 7702 533-0 | Fax +49 7702 533-433
Mounting instruction see www.metz-connect.com

1. Description

The NG4 power supply supplies regulated direct voltages for
supplying power to the respective devices of the product family of I/O
components. The device supplies regulated direct voltage 24 V DC at
a power of 16 watts. A parallel operation of several power supply units
is not allowed. The secondary voltage can only be tapped at the right
side of the plug connector and at the screw-type terminals on the top
of the module. The bus communication is looped through on both
sides of the plug connectors.

8038/899243-01

Power Supply
NG4

110561-01

3. Technical Data

Input

Operating voltage

110 - 240 V AC, 50 - 60 Hz

Internal fuse

T1AL/250 V soldered fuse

Output

Output voltage DC

+24 V (SELV)

Output current (max)

700 mA

Output power

16 W

Load and control accuracy ±3% (Tu = 20 °C)

Protection and monitoring

Continuous short
circuit protection

yes

Idle test

yes

Mains failure backup

> 40 ms at 230 V AC and full load

Dielectric strength

4000 V AC input/output

Device security

Standard

Conformity was proofed.

The declaration of conformity is available

at the manufacturer BTR NETCOM GmbH.

Output

Safety Extra Low Voltage (SELV)

according EN 60950

Protection class

2

EMV

CE conformity
Emitted interference/
Immunity to interference the device was tested according to the

applicable standards; conformity was

proofed, the declaration of conformity

is available at BTR NETCOM

Contacting

Primary and secondary

screw type terminal blocks

Cover no
Type of protection

IP20 (nach EN 60529)

Wire cross section

1.5 mm

2

Housing

Dimensions WxHxD

1.968 x 2.756 x 2.559 in.

50 x 70 x 65 mm)

Front dimension

1.772 in. / 45 mm

Weight

108 g

Mounting position

any

Mounting

standard rail TH35 per IEC 60715

Material
Housing

Polyamide 6.6 V0

Terminal blocks

Polyamide 6.6 V0

Cover plate

PolycarbonateB

Mounting in series

without space

Type of protection
(IEC 60529)
Housing

IP40

Terminal blocks

IP20

Terminal blocks

Wire cross section

max. AWG 12 (4.0 mm²) solid wire

max. AWG 14 (2.5 mm²) stranded wire

Wire diameter

min. 0.3 mm up to max 2.7 mm

Temperature range

Operation

-10 °C to +55 °C

Storage

-25 °C to +85 °C

4. Connection Diagram

+24V

L

N

L N

Operating voltage
110 - 240 V AC

1 A
+24V

Output voltage

24 V DC
0,7 A

+24V

+24V

A- B+

L

N

⊥ ⊥ ⊥

5. Wiring Diagram

2. Important Notes

Declaration of Conformity

The device was tested according to the applicable standards. Confor-
mity was proofed. The declaration of conformity is available at the
manufacturer BTR NETCOM GmbH.

Notes Regarding Device Description

These instructions include indications for use and mounting of the
device. In case of questions that cannot be answered with these in-
structions please consult supplier or manufacturer.
The indicated installation directions or rules are applicable to the
Federal Republic of Germany. If the device is used in other countries it
applies to the equipment installer or the user to meet the
national directions.

Safety Instructions

Keep the applicable directions for industrial safety and prevention of
accidents as well as the VDE rules.
Technicians and/or installers are informed that they have to
electrically discharge themselves as prescribed before installation or
maintenance of the devices.
Only qualified personnel shall do mounting and installation work with
the devices, see section “qualified personnel”.
The information of these instructions have to be read and understood
by every person using this device.

Symbols

Warning of dangerous electrical voltage

Danger

means that non-observance may cause risk of life,
grievous bodily harm or heavy material damage.

Qualified Personnel

Qualified personnel in the sense of these instructions are persons who
are well versed in the use and installation of such devices and whose
professional qualification meets the requirements of their work.
This includes for example:

• Qualification to connect the device according to the VDE

specifications and the local regulations and a qualification to put
this device into operation, to power it down or to activate it by
respecting the internal directions.

• Knowledge of safety rules.

• Knowledge about application and use of the device within the

equipment system etc.

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