Connection and Operation
Check for matching voltage specifications on the inverter and the desired load devices.
Use only wire of sufficient cross-section for the DC-leads and make sure to have generous connecting surface between the wire and the DC-
connectors.
Caution: To achieve proper electrical contact between the bolts and the printed circuit board, always fasten the nuts of the DC connectors
(figure 1) even if only used for testing purposes.
Check for adequate air clearances at the ventilation slots to ascertain sufficient cooling. Never cover the ventilation slots and never operate the
device near combustible materials.
Connect the inverter with the DC power supply and switch it on. If everything is connected properly and operated within specified parameters, the
green LED will light up.
General notes on operating AC loads with inverters
In general, all AC loads may be operated with inverters. To estimate the power requirements and necessary reserves, one needs to know some
characteristics of typical AC loads. Most AC loads have been designed for mains operation. One important item to note however is the required
inrush current which does not play a big role when operated on mains voltage since the mains grid is capable of delivering very large currents.
Manufacturers therefore do not focus on inrush current. The inrush current however may exceed the nominal rated value by a multiple.
•
Incandescent lamps up to 8x higher inrush current within 1 sec
•
Refrigerators up to 10x higher inrush current within 3 sec
•
Television sets up to 10x higher inrush current within 1 sec
Therefore it is important to choose the inverter for sufficient power reserves. For example an inverter supposed to supply a small refrigerator of 50W
nominal power has to deliver a peak power of 500W.
Reverse Polarity Protection
In case the DC input is accidentally connected with reversed polarity the current is flowing across a diode and triggers the fuse. In this case the
proper polarity must be established and the fuse replaced.
Replacing the Fuse
The fuses are located under the DC connector cover (12V: 40A; 24V: 20A). In case the fuse is blown the inverter has to be disconnected and the
fuse replaced with a new one of the same current rating. Subsequently check the device without any load connected. In case the fuse blows again
the device is defective and has to be repaired by an authorized technician.
Remote control
To connect the remote control we suggest stranded wire of 2, x 0,5mm². The cable may be extended up to a length of 10m. You may use any switch
as ON/OFF switch, since the internal 12V direct voltage is used as switching voltage.
Recommended minimum DC wire cross-section
up to 2m
3m
PT300 / PT600
16mm²
16mm²
PT1200
25mm²
35mm²
PT2000
35mm²
50mm²
Technical Data:
PT300-12V
PT300-24V
PT600-12V
PT600-24V
Nominal input voltage:
12V
24V
12V
24V
Min./max. input voltage:
11-15V
22-30V
11-15V
22-30V
Typical current consumption:
0,5W
0,5W
0,5W
0,5W
DC fusing:
1 x 40A
1 x 20A
2 x 40A
2 x 20A
Continuous output power:
300W
300W
600W
600W
Maximum output power:
800W
800W
1200W
1200W
AC output voltage:
225V
225V
225V
225V
Output voltage tolerance [+/-%] @ 12V DC IN:
5%
5%
5%
5%
Output frequency / tolerance:
50Hz +/-1%
50Hz +/-1%
50Hz +/-1%
50Hz +/-1%
Fan cooling:
no
no
yes
yes
Remote control connector:
yes
yes
yes
yes
Dimension mm:
220 x 245 x 70
220 x 245 x 70
220 x 245 x 70
220 x 245 x 70
Weight:
2,2 kg
2,2 kg
2,4 kg
2,4 kg
PT1200-12V
PT1200-24V
PT2000-12V
PT2000-24V
Nominal input voltage:
12V
24V
12V
24V
Min./max. input voltage:
11-15V
22-30V
11-15V
22-30V
Typical current consumption:
0,5W
0,5W
0,5W
0,5W
DC fusing:
4 x 40A
4 x 20A
8 x 40A
8 x 20A
Continuous output power:
1200W
1200W
2000W
2000W
Maximum output power:
2000W
2000W
3500W
3500W
AC output voltage:
225V
225V
225V
225V
Output voltage tolerance [+/-%] @ 12V DC IN:
5%
5%
5%
5%
Output frequency / tolerance:
50Hz +/-1%
50Hz +/-1%
50Hz +/-1%
50Hz +/-1%
Fan cooling:
yes
yes
yes
yes
Remote control connector:
yes
yes
yes
yes
Dimension mm:
400 x 245 x 70
400 x 245 x 70
505 x 245 x 70
505 x 245 x 70
Weight:
3,6 kg
3,6 kg
5,2 kg
5,2 kg
We reserve the right to make technical alterations. We assume no liability for typing errors. 10/2004.
Conrad Electronic GmbH, Klaus-Conrad-Str. 1, D-92240 Hirschau, Germany
Phone: (49) 180 – 5312111, Fax: (49) 180 – 5312110 Email: [email protected]
Internet: www.conrad.de
