TK4720 AC Adjustable Resistance Load

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The TK4720 is a high-performance AC adjustable resistive load designed for precise on-site verification and calibration of AC charging stations for electric vehicles. It is available in single-phase 9 kW and three-phase 45 kW configurations, offering broad compatibility with AC chargers of different capacities.

The system allows continuous adjustment of current and resistance values, enabling flexible load simulation during metrology and maintenance operations. With advanced protection mechanisms, forced-air cooling, and a robust AC load design, the TK4720 provides a reliable and efficient solution for EV AC charger testing in laboratory and field environments.

Technical Specifications of TK4720 AC Adjustable Resistance Load

Model	TK4720-9kW	TK4720-45kW
Rated Power (@AC 220V)	Single-phase 9 kW	Three-phase 45 kW
Working Range	Voltage 0–264 V Current 0–39.5 A	Voltage 0–248 V Current 0–80 A
Connection Mode	Single phase	Three phase four wire
Minimum Current Step	0.1 A	0.1 A
Minimum Power Step	0.11 kW	0.22 kW
Range of Resistance Regulation	6.33 Ω – 500 Ω	3.5 Ω – 500 Ω
Heat Radiation	Air blast cooling
Protection	Overvoltage protection, short-circuit protection, abnormal wind speed protection; Equipped with alarm indicator light and emergency stop switch

Key Features

High-efficiency AC adjustable resistive load designed for EV AC charger testing.
Available in single-phase 9 kW and three-phase 45 kW load options.
Wide voltage and current working range suitable for various AC charger capacities.
Highly precise current and power adjustment with 0.1 A and 0.11/0.22 kW steps.
Wide resistance adjustment range enabling flexible load simulation.
Air-blast cooling ensures stable performance under continuous load.
Advanced protection: overvoltage, short-circuit, and abnormal airflow monitoring.
Alarm indicator and emergency stop switch enhance operational safety.
Ideal for metrology labs, EV charger manufacturers, and field service engineers.
Durable construction designed for reliable on-site and laboratory use.

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ONsys Technologies OPC Pvt Ltd was established in 2019 and has emerged as Indias preferred and leading supplier of precision test and measurement instrumentation, automated test systems, intelligent manufacturing systems, and test and automation turnkey solutions.Serve the increasing demand of Electronics and Electrical Test & Measurement equipment and customers application-based customized solutions of Indias rapidly growing Electronics Manufacturing industries. We supply, design, assemble, develop, and manufacture testing equipment, Automated Test Equipment (ATEs), Test Zig, and Test Benches as per requirement with highest global standards. To do this, ONsys invests heavily in sourcing, research, and development in order to offer great products with precision, reliability, and useful innovative test and measurement solutions for the technology industry.

TK4720 AC Adjustable Resistance Load

Technical Specifications of TK4720 AC Adjustable Resistance Load

Key Features

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