TAF 801 and 1251
Square wave AC power sources that convert the secondary voltage from a sinus wave via a thyristor controlled rectifier bridge to a square wave arc voltage with excellent strike characteristics and good welding properties.
Features
- Used in combination with ESAB’s A2-A6 equipment range and the A2-A6 Process Controllers (PEK)
- Capacity for continuous welding
- Optimized open circuit voltage
- Compensation of mains supply fluctuation
- Voltage drop compensation for long welding cables
- High power factor ensuring low power consumption
- Prepared for Scott connection of two power sources
Welding Process
- SAW - Submerged Arc Welding
Input Ratings
TAF 801 / 1251
| Frequency Hz | 50 Hz |
| Phase | 1 |
| Volts | 400/415/500 V |
| Frequency Hz | 60 Hz |
| Phase | 1 |
| Volts | 400/440/550 V |
Output Ratings
TAF 801
| Amp Low | 1000 A |
| Duty Cycle | 60 % |
| VDC Out | 44 VDC |
| Amp Low | 800 A |
| Duty Cycle | 100 % |
| VDC Out | 44 VDC |
TAF 1251
| Amp Low | 1500 A |
| Duty Cycle | 60 % |
| VDC Out | 44 VDC |
| Amp Low | 1250 A |
| Duty Cycle | 100 % |
| VDC Out | 44 VDC |
Power Specifications
| Model | TAF 1251 | TAF 801 | ||
| Application Class | S | S | S | S |
| Current | 1250 A | 1500 A | 800 A | 1000 A |
| Duty Cycle | 100 % | 60 % | 100 % | 60 % |
| Efficiency | 86 % | 86 % | 86 % | 86 % |
| Enclosure Class | IP23 | IP23 | IP23 | IP23 |
| Frequency |
50 Hz 60 Hz |
50 Hz 60 Hz |
50 Hz 60 Hz |
50 Hz 60 Hz |
| Mains Supply |
400/415/500 V 400/440/550 V |
400/415/500 V 400/440/550 V |
400/415/500 V 400/440/550 V |
400/415/500 V 400/440/550 V |
| Open Circuit Power | 230 A | 230 A | 230 A | 230 A |
| Open Circuit Voltage | 72 V | 71 V | ||
| Phase |
1 1 |
1 1 |
1 1 |
1 1 |
| Power Factor | 0.77 | 0.83 | ||
| Setting Range | 400/28 - 1250/44 | 300/28 - 800/44 | ||
Weights and Dimensions
| Model | TAF 1251 | TAF 801 |
| Height | 1228 mm | 1228 mm |
| Length | 774 mm | 774 mm |
| Weight | 608 kg | 495 kg |
| Width | 598 mm | 598 mm |
Interested in this product? Contact us.
ESAB Group (UK) LtdWarlies Park House
Horseshoe Hill
Upshire
Essex
EN9 3SL
Phone: +44 (0) 1992 768515
ESAB CUTTING SYSTEMS GmbH
Robert-Bosch-Str. 20
61184 Karben
Germany
Phone: +49 6039 40 0
Colfax Corporation
420 National Business Parkway
5th Floor
Annapolis Junction, MD 20701