TK4710 DC Adjustable Resistance Load
The TK4710 is a high-performance DC adjustable resistive load designed for accurate on-site calibration and verification of DC fast chargers for electric vehicles. Available in 20 kW, 30 kW, and 60 kW power variants, the unit supports DC voltages up to 1000 V with adjustable current capability, making it suitable for metrology institutions, charger manufacturers, and field service teams.
The front panel is equipped with a standard DC charging socket, allowing seamless integration with DC charger testers and metrology equipment. With powerful forced-air cooling, robust protection mechanisms, and optional cascading support on higher-power models, the TK4710 series offers a reliable and efficient solution for EV DC charger load testing.
Specification of TK4710 DC Adjustable Resistance Load
| Model | TK4710-20kW-1000V | TK4710-30kW-1000V | TK4710-60kW-1000V |
|---|---|---|---|
| Rated Power | 20 kW @1000V / 500V | 30 kW @1000V / 500V | 60 kW @1000V / 750V / 500V |
| Operation Ranges | 0–1000 V / 0–40 A | 0–1000 V / 0–60 A | 0–1000 V / 0–120 A |
| Minimum Current Step | Current is continuously adjustable | ||
| Heat Dissipation | Forced air cooling | ||
| Protection | Overvoltage protection, short circuit protection, abnormal wind speed protection | ||
| Alarm | Alarm indicator light + emergency stop switch | ||
| Power Expansion | Not supported | Supports cascading | Multiple cascades supported (e.g., 2 × 60 kW = 120 kW) |
| Dimension (W × D × H) | 490 × 200 × 493 mm | 650 × 240 × 520 mm | 610 × 550 × 590 mm |
| Weight | Approx. 23 kg | Approx. 35 kg | Approx. 66 kg |
Key Features
- High-accuracy DC adjustable resistive load designed for EV DC charger calibration.
- Available in multiple power levels: 20 kW, 30 kW, and 60 kW.
- Supports up to 1000 V DC input for wide compatibility with fast chargers.
- Continuously adjustable current for flexible testing conditions.
- Standard DC charging socket for effortless field connection.
- Forced-air cooling system ensures stable long-duration operation.
- Advanced protection: overvoltage, short circuit, abnormal airflow detection.
- Built-in alarm indicator and emergency stop switch for enhanced safety.
- Cascading support on 30 kW and 60 kW models for high-power applications.
- Durable structure with compact dimensions suitable for on-site testing.
- Ideal for charger manufacturers, service engineers, and metrology departments.
- Reliable performance even under heavy-duty industrial environments.