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The universal welding rectifier is designed for automatic and semi-automatic gas-shielded and submerged arc welding as well as for manual arc welding by stick electrodes of all types. The power thyristor unit with a ratio of current safety factor of K=1.25 is installed on the rectifier.

Availability of a special rectification circuit with a low pulsation factor provides for high quality of weld, minimum spattering and saving of welding materials.

Parameter nameRate
Rated mains voltage, V3х380
Rated mains current frequency, Hz50
Rated welding current at DC 100%, А1250
Smooth control limits of welding current, A
- falling250-1250
- rigid250-1250
Control limits of operating voltage, V
- falling24-56
- rigid24-56
Rated power consumption, kVA120
No-load voltage, V85
No-load voltage, V4-10
Weight, kg550
Overall dimensions, mm960×680×890

Distinctive features:

– availability of an input circuit breaker
– availability of an ammeter
– availability of an voltmeter
– availability of an entry gland for mains cable
– on-line state indication
– protection against overcurrent and short circuit currents in the welding circuit
– coils of the welding transformer and the transformer assembly itself are impregnated with silicon organic varnish KO-916K
– load handling devices for transportation
– high maintainability and reliability
– switch for “rigid” – “fan-shaped” –  “falling” current voltage characteristic
– tilt switch for “fan-shaped” current voltage characteristic;
– toggle switch for supplying power to output keys at local control (control by power rectifier thyristors)
– setpoint adjuster for welding current and welding voltage at local control
– remote control connector
– additional fan-shaped characteristics significantly expand the technological capabilities of the rectifier.


– turret for feeding mechanism
– straight welding cable with an electrode holder for manual arc welding
– return welding cable with a clamp for manual arc welding
– digital indication of welding current
– digital indication of welding voltage

Standard delivery set: rectifier, two current links.

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