• TK4860E-S: built-in 8 kW single-phase AC load, no additional load needed for single-phase chargers
• TK4860E-T: built-in 8 kW single-phase load plus cascading with three-phase 45 kW resistive loads or electric vehicles
• Wide dynamic range measurement and ms-level energy refresh speed
• Fixed power: preset charging power with automatic start and stop of the charger
• Voltage and current waveform distortion measurement
• Real-time clock display for clock time error testing; wired temperature probe as standard
• Wireless tablet operation and on-board display screen
• Alloy resistor load rated for 8 hours of continuous full-load operation
• Three power supply modes: mains power, gun head power supply, built-in lithium battery

• On-site working error verification of single-phase and three-phase AC chargers
• Single-technician field inspections with a built-in load
• Clock time error checks on AC charging stations
• Waveform distortion checks during verification

• Accuracy class: Class 0.05 / Class 0.1
• TK4860E-S voltage: 220 V range, measurement range 220 V ± 20%; current: 30 A range, measurement range 0.1 A～36 A
• TK4860E-S power/energy (power factor 0.8L~1~0.8C) measurement uncertainty (k=2): 0.05%*RD (Class 0.05), 0.1%*RD (Class 0.1)
• TK4860E-S load: single phase 8 kW, does not support load expansion
• TK4860E-T voltage: three-phase 220 V range, 220 V ± 20% (phase voltage); current: 2 A and 70 A ranges, measurement range 0.1 A～72 A
• TK4860E-T power/energy (power factor 0.8L~1~0.8C) measurement uncertainty (k=2): 0.05%*RD (Class 0.05), 0.1%*RD (Class 0.1)
• TK4860E-T load: single phase 8 kW; supports cascaded three-phase 45 kW resistive loads or electric vehicles
• Waveform distortion measurement uncertainty (k=2): 0.5%
• Clock: satellite timing, 1 s/d; temperature (wired probe): -30 °C～60 °C, maximum allowable error 0.5 °C
• Power supply: charging gun head, built-in lithium battery, 220 V mains; power input AC (220 ± 22) V, (50 ± 2) Hz
• Communication: USB, LAN, WIFI, Bluetooth
• Working temperature: -25 °C~55 °C; storage temperature: -30 °C~70 °C
• Size and weight: 330 (W) × 305 (D) × 460 (H) mm; approx. 16 kg (TK4860E-S), approx. 18 kg (TK4860E-T)
• Optional vehicle charging connectors: Type1-GBT (AC American Standard to GB/T, single-phase, 32 A), Type2-GBT (AC European Standard to GB/T, three-phase, 32 A)

AC chargers are the most numerous assets in most charging networks, and checking them one by one with a separate load and analyzer is slow. The cost of verification ends up limiting how often it happens.

The TK4860E integrates the power measurement module, the charging control guidance circuit, and an 8 kW single-phase load. Calibration points are preset, the charger is started and stopped automatically, and results are recorded on a wireless tablet. The three-phase TK4860E-T can also be cascaded with a 45 kW resistive load such as the Tunkia TK4720 or connected to a vehicle.

Its native interface is GB/T. Tunkia lists optional Type 1 and Type 2 to GB/T vehicle charging connectors, ordered separately. For a tester built directly on US CCS1 and Type 1 connectors, see the Tunkia TE1100-US; the DC companion of this model is the Tunkia TK4850E.

AV-TEK helps you choose the single-phase or three-phase version and the right connectors for your sites. Browse EV charger testers and loads and all Tunkia instruments.