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OTC WELBEE P402L
Description
Technical specification
OTC WELBEE P402L – Multifunction MIG/MAG Inverter Welder 30–400 A
The OTC WELBEE P402L (also known as WB‑P402L or Welbee II P400L) is a high-performance multi-process inverter welding machine, expertly engineered for demanding industrial and production welding applications. Its advanced capabilities make it a versatile tool for welding steel, stainless steel, and aluminum using CO₂ or Ar-CO₂ shielding gas.
At its core is a robust 30–400 A output range, delivering smooth, consistent welding performance. It offers DC/DC pulse wave technology, which ensures deep penetration while maintaining low spatter, and the CBT‑EX (Controlled Bridge Transfer) mode — reducing spatter by up to 80% at 200 A and 60% at 200 A in MAG, resulting in cleaner welds with minimal cleanup.
Built for industrial duty, the unit supports continuous operation (100% duty cycle) at high current levels. It incorporates an air-side cooling design, durable components, and a solid metal chassis, ensuring reliable performance in harsh workshop environments.
Operational convenience is a priority: the P402L features an intuitive control panel, integrates a standard USB port for firmware updates and data logging, and offers optional tablet connectivity for remote monitoring via an Android interface.
Input is 400 V ±10%, three-phase, with primary power up to ~20.1 kVA/18.1 kW. No-load voltage resides in the 80–92 V range, supporting reliable ignition and stable arc performance.
Suitable for manual or robotic welding systems, the P402L includes a built-in interface for OTC FD-Series robot integration and is compatible with the Welbee line’s cooling units (6H/IF) for aluminum welding support.
In summary, the OTC Welbee P402L blends exceptional weld quality, low spatter efficiency, industrial-grade durability, and modern digital interfacing—making it an excellent choice for demanding professional welding operations.
| Feature | Specification |
|---|---|
| Model | OTC WELBEE P402L (alias WB‑P402L) |
| Welding Current | 30–400 A |
| Input Voltage | Three‑phase 400 V ± 10%, 50 Hz |
| Primary Power | 20.1 kVA / 18.1 kW |
| Welding Modes | DC/DC Pulse Wave, CBT‑EX Low‑Spatter |
| Duty Cycle | 100 % @ max current |
| No‑Load Voltage | 80–92 V |
| Cooling & Chassis | Side‑air flow, robust metal housing |
| Interfaces | USB port, optional tablet / robot link |
| Processes | MIG/MAG (GMAW/FCAW), TIG, Stick, Robotic |
| Applications | Steel, stainless, aluminum welding |
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