| ITEM |
7900 |
7902 |
7903 |
| Synchronous timer with SCR |
• |
• |
• |
| Time adjustment |
cycles |
2-65 |
2-65 |
2-65 |
| Current adjustment 40-100% |
- |
• |
• |
| Cooling |
Air |
Air |
Water |
| Supply voltage 50Hz * |
V |
400 |
400 |
400 |
| Nominal power at 50% |
kVA |
2 |
2.5 |
6 |
| Maximum welding power |
kVA |
13 |
16 |
16 |
Short circuit current
with arms L= |
kA
mm |
7.2
125 |
8.2
125 |
8.2
125 |
| Thermal current 100% |
A |
610 |
700 |
1700 |
| No load secondary voltage |
V |
2.3 |
2.5 |
2.5 |
| Insulation class |
F |
F |
F |
| Cables section for L<15 m |
mm2 |
2.5 |
2.5 |
2.5 |
| Delayed fuses |
A |
16 |
16 |
16 |
| Standard arms throat depth L |
mm |
125 |
125 |
- |
Max. electrode force
with arms L= |
daN
mm |
120
125 |
120
125 |
120
125 |
| Arms gap |
mm |
96 |
94 |
94 |
Max. electrodes stroke
with arms L= |
mm
mm |
55
125 |
55
125 |
70
150 |
| Water cooling |
l/min |
2.5 |
3.7 |
3.7 |
| Water max. pressure |
bar |
- |
- |
2.5 |
| Aerial noise produced |
dB(A) |
< 70 |
< 70 |
< 70 |
| Level of vibrations |
m/s2 |
< 2.5 |
< 2.5 |
< 2.5 |
| Measure conditions |
|
|
|
|
| welding time |
cycles |
14 |
14 |
20 |
| welding current |
kA |
5 |
5 |
6 |
|
working rating in welds/min
|
|
2
|
2
|
6
|
| Mains cable length |
m |
3.8 |
3.8 |
3.8 |
| Net weight with arms 125 mm |
kg |
10.5 |
11 |
- |
| Net weight with arms 150 mm |
kg |
- |
- |
12 |
| Net weight with arms 500 mm |
kg |
13 |
13.5 |
13.6 |
