Welding

OTC inverter welding — versatile, reliable, precise

Our OTC inverter power sources are true all-rounders for manual and mechanised welding across many materials. Designed for a wide range of applications, they deliver maximum versatility, process stability and repeatable quality — from one-offs to series production.

Technical specification

• Type: OTC AR-P403L inverter
• Ranges: 30–400 A (current), 12–34 V (voltage), 70 V open-circuit
• Power: max 20.8 kVA / 17.8 kW, idle power 45.3 W
• Duty cycle (40°C): 60% / 400 A · 100% / 370 A
• Protection: IP23 — robust operation in industrial environments
• Ignition method: 80.8 %

Your benefits at a glance

• All-round system for manual & mechanised welding
• Stable arc characteristics & high repeatability
• Wide process windows for steel, stainless and aluminium
• Energy-efficient inverter technology
• Consistent quality in series production

Typical applications

• Machinery & plant engineering, frames & support systems
• Steel/stainless structures, sheet-metal assemblies
• Vehicle & commercial-vehicle components

Type

OTC AR-P403L Inverter

Mains voltage

400 V

Max. input power

20,8 kVA / 17,8 kW

Current range

30–400 A

Voltage range

12–34 V

Open-circuit voltage

70 V

Idle power

45,3 W

Duty cycle

60% / 400 A — 100% / 370 A (40°C)

Protection class

IP23

Ignition method

80,8 %