TK6400 High Power AC/DC Resistive Load Box for Arc
TK6400 is a series of high-power AC and DC fixed-value resistive load boxes developed by Tunkia. It is specifically designed to work in conjunction with TK6500 and TK6700 welding machine calibrators to stabilize the output power of welding machines and enable accurate on-site calibration. With its robust construction and precision resistive elements, the TK6400 ensures consistent load simulation for both AC and DC welding machines, allowing technicians to perform reliable performance verification and maintenance.
The TK6400 series features high stability, low thermal drift, and precise power handling capabilities, making it suitable for industrial workshops, calibration laboratories, and manufacturing environments. Its compact design, clear labeling, and easy-to-connect terminals simplify setup and operation, while the high current and voltage handling capacity ensure it can accommodate a wide range of welding machines. Additionally, the load box enhances safety during calibration by providing controlled and predictable load conditions.
Available in multiple configurations, the TK6400 supports varying voltage and current ratings, allowing flexibility to meet the needs of different welding machine models. Combined with Tunkia’s TK6500/TK6700 series, the TK6400 forms a complete calibration solution for ensuring welding equipment operates at optimal efficiency and safety standards.
Technical Specifications
| Model | Rated Working Voltage | Rated Working Current | Resistance | Rated Working Power |
|---|---|---|---|---|
| TK6400-1 | 32 V | 200 A | 0.16 Ω | 6.4 kW @ 32 V |
| TK6400-2 | 48 V | 600 A | 0.08 Ω | 28.8 kW @ 48 V |
General Specifications
| Power Supply | AC (220 ± 22) V, (50 ± 2) Hz |
|---|---|
| Operating Temperature | 0°C ~ 45°C |
| Storage Temperature | -20°C ~ 70°C |
| Operating Humidity | < 80% @ 30°C, < 70% @ 40°C, < 40% @ 50°C |
| Storage Humidity | 20% ~ 80% R.H, non-condensing |
| Altitude | < 3000 m |
| Weight | TK6400-1 (200 A): ~10 kg; TK6400-2 (600 A): ~20 kg |
| Dimensions | TK6400-1: 320 mm (W) × 230 mm (D) × 230 mm (H) TK6400-2: 385 mm (W) × 460 mm (D) × 330 mm (H) |