![EW20 PTC Electric Heater [Liquid Electric Heater]](https://omo-oss-image.thefastimg.com/portal-saas/pg2025052717442189246/cms/image/f2b3d404-2856-446e-adb8-373f002e0993.png "EW20 PTC Electric Heater [Liquid Electric Heater]")
EW20 PTC Electric Heater [Liquid Electric Heater]
High power electric heater to meet the heating and battery heating needs of commercial vehicles
The Yusenn EW20 PTC electric heater is used to cool hydrogen fuel cells, as well as to cool new energy vehicle batteries and heat the entire vehicle. The EW20 PTC electric heater is a high-power electric heater from Yusenn, widely used for heating new energy commercial vehicles and keeping batteries warm. The high power enables the Yusenn EW20 PTC electric heater to quickly and continuously provide heating for large spaces, while maintaining the battery pack at its optimal operating temperature, shortening charging time, and extending range. The power can be customized,Power range from 8 to 20 kWCategory： PTC Electric Heaters
Product Details
New-energy commercial vehicles, such as new-energy buses and coaches, primarily rely on high-voltage electricity for power. Without the residual heat from traditional vehicle engines, the cabin’s heating needs must now be met entirely through the conversion of high-voltage electricity. The PTC liquid electric heater serves as the key device that supplies thermal energy to meet the vehicle’s overall heating demands. It converts high-voltage electricity into heat, which is then transferred to a suitable medium via a heat exchanger. This medium carries the thermal energy to the areas of the vehicle that require it, enabling efficient management of the vehicle’s thermal resources.
EW20 PTC electric heater focuses on the core technology of PTC electric heating, making it ideal for new-energy electric vehicles with larger heating spaces, such as new-energy buses and coaches. It can also be seamlessly integrated into diversified battery thermal management systems, including energy storage and hydrogen fuel cell applications.
The EW20 PTC electric heater features high-voltage electric liquid heating technology, precisely meeting the efficient heating and battery pack thermal management needs in the larger spaces typical of new-energy commercial vehicles. It provides a stable and reliable PTC pure-electric heating solution for battery thermal management in areas such as new-energy vehicles, energy storage, and hydrogen fuel cells.
Imported ComponentsThe controller uses imported IGBT components, featuring a compact size and high reliability. |
High-precision power controlPWM stepless adjustment, high-precision power control, achieving up to ±10W |
Real-time ProtectionIt features overcurrent protection, high-voltage interlock, short-circuit detection and protection, overvoltage detection and protection (780V), undervoltage detection and protection (420V), open-circuit detection and protection, temperature setting, and overtemperature protection, among other functions. |
Ultra-stableIt possesses high-temperature resistance, cold resistance, corrosion resistance, vibration resistance, and electromagnetic interference immunity. |
Independently developedSelf-developed intelligent control system, with enhanced safety protection features |
Soft Start TechnologyBy adopting soft-start technology, the inrush current is minimized, with the inrush current not exceeding 10% of the rated current. |
PTC Electric Heater Operating Principle ▶
The EW20 PTC electric heater operates by using a controller to regulate the amount of heat generated by the PTC element. This heat is then transferred to the antifreeze fluid via a heat exchanger, ultimately raising the fluid's temperature.
The PTC core of the EW20 PTC electric heater is a positive temperature coefficient resistor that generates heat when energized. Once the temperature reaches the Curie point (a stable temperature achieved when voltage is applied to the PTC), it remains constant—providing both safety and reliability. The PTC core is arranged in a cross configuration with the water channels of the heat exchanger, allowing the heat generated by the PTC core to be efficiently transferred via these channels to the internal antifreeze fluid, thereby raising the fluid's temperature.
The controller of the EW20 PTC electric heater primarily regulates the power output of the PTC heating element, controlling the amount of heat generated. It also establishes communication with the vehicle, receiving operational commands and requirements from the vehicle, while simultaneously monitoring and providing real-time feedback on the heater's running status.
PTC Electric Heater Operating Procedure ▶
After receiving the vehicle's operational command and temperature requirements, the EW20 PTC electric heater determines whether heating is needed based on the difference between the desired temperature and the current water temperature, then activates the PTC control system accordingly. Throughout the process, the heater continuously monitors whether the actual water temperature has reached the target level—and once it does, the heater automatically reduces its power output or stops heating altogether.
Suitable Models ▶
|
Energy storage |
Hydrogen fuel cell |
Technical Specifications ▶
| Product Specifications | EW20 PTC Electric Heater [Liquid Electric Heater] | ||||
| Heating power kW | 8KW | 10KW | 12KW | 15KW | 20KW |
| Voltage V | 300–750 | ||||
| Water flow rate l/h | Greater than or equal to 1200 L/h | ||||
| Operating temperature ℃ | -40~+90 | ||||
| Dimensions: Length × Width × Height mm | 475X229X101 | ||||
| Thermal Efficiency % | 85–92 | ||||
| Service Life (Years) | 10 | ||||
| Protection Level | IP67 | ||||
| Dielectric Strength DCV | 3500 | ||||
| Insulation resistance MΩ | 500 | ||||
★PTC electric heaters are available for custom development. Please contact customer service if needed.
Keywords： EW20 PTC Electric Heater [Liquid Electric Heater]
File Download
Cooperation Intention Table
Please leave your email, our professional person will contact you asap!
Recommend Products
