Valeo High Voltage Ptc Heater 6kw 7kw 10kW For Heat Pump System DC 690V

Product Specification

Are You Facing These Thermal Management Challenges?

Applications

EVLINK Technology’s high-voltage PTC water heater is widely used in electric buses, electric heavy-duty trucks,  electric light trucks, mining trucks, and energy storage thermal management systems. 

About Us

Evlink was founded in 2020, specializing in the R&D and manufacturing of automotive-grade high-voltage,  high-power coolant heaters. Our core team brings over 10 years of experience in the electric vehicle components industry.

In 2025, the company achieved an annual revenue of nearly RMB 200 million, with a workforce of 400 employees,  including 80 R&D engineers.

Our core business focuses on electric heating solutions for thermal management systems in commercial vehicles.  We offer high-voltage coolant heaters with a voltage range of 600V–1100V and power output from 3kW to 35kW.  Our mass-produced models reach a maximum rated voltage of DC 870V and a maximum rated power of 35kW,  placing our technical performance at the forefront of the industry.

Our Team

The company operates a modern production base covering 18,000 square meters,  equipped with advanced manufacturing facilities and a  professional management team.

With 16 years of industry experience, we have established a senior R&D team of over 80 experts,  specializing in hardware, software, and system integration.

18000m²   |    80+          |    65+           |     30+

Factory Area                         R&D Engineers                   Export Countries                    Production Lines

Certifications & Patents

Our patented technologies reflect our continuous innovation in high-voltage PTC heating systems,  ensuring efficiency, safety, and long-term reliability.

Production Process

Backed by a professional R&D team and extensive project experience,  we provide customized development and system integration services for high-voltage liquid heaters based on  customers’ actual operating conditions, achieving optimized thermal management performance and better vehicle compatibility.

FAQ

Q: How to choose the right PTC water heater?
A: Please provide the following parameters to help with selection:

· Application scenario (bus / heavy-duty truck)

· Intended use (battery heating, cabin heating, regenerative braking energy recovery)

· Operating conditions

· Operating voltage range

· Rated voltage and power

· Battery type and capacity

· Target outlet water temperature

· Ambient operating temperature

· Coolant flow rate

· Installation space

Q: How does a PTC water heater work?
A: The PTC heater works by passing electric current through PTC ceramic material. The material’s resistance increases as temperature rises, automatically adjusting the heating power to maintain a constant temperature.

Q: Which vehicle types is it suitable for?
A: Suitable for most electric buses, electric trucks, and electric construction machinery (excavators, loaders, etc.).

Q: How does it perform in low-temperature environments?
A: PTC heaters remain stable in low-temperature conditions, making them ideal for electric vehicles in cold regions.

Q: What are the core advantages of EVLINK PTC water heaters?
A: High reliability, fast and uniform heating, patented thermal expansion control, moisture protection, and exceptional performance under extreme conditions.

Q: Is customized development supported?
A: Yes. Common customization options include:

· Power rating (3 kW – 35 kW)

· Voltage platform (400 V – 800 V)

· Communication protocol (CAN / EN enable)

· Mounting bracket design and dimensions

· High-voltage and low-voltage connectors

Q: Is OEM/ODM customization available?
A: Yes. Options include:

· Power and voltage customization

· Connector types

· Communication protocols (CAN, etc.)

· Appearance and mounting structure

Q: What is the lead time?
A: Minimum order quantity: 1 unit. Sample delivery within 7 days. Agile development ensures rapid response to changing requirements.

Q: Are certifications available?
A: The product meets automotive-grade standards and can provide certifications such as CE, ISO, and E-Mark.

Q: Are sample tests supported?
A: Yes. Samples can be provided for performance verification and vehicle integration testing.

Q: Does it support full vehicle system integration?
A: Yes. Integration with the vehicle control system is possible via CAN communication.

Specification:

Introduction

In electric commercial vehicles, electric construction machinery, electric trucks, and electric heavy-duty trucks, a simple and efficient heating system has become crucial. High voltage PTC (Positive Temperature Coefficient) heaters have become mainstream in various electric commercial vehicles. EVLINK's high voltage, high-power PTC coolant heaters have thoroughly addressed issues such as insufficient heating capacity, low heating efficiency, and low power output in cold weather. This article explores how EVLINK's high voltage PTC heaters can resolve the issues of inadequate heating and efficiency in electric commercial vehicles.

Understanding EVLINK High Voltage PTC Liquid Heaters

The EVLINK high voltage PTC liquid heater is an ultra-high voltage, high-power water heater independently developed by the EVLINK team. Its functions and heating strategy can be operated according to the communication protocol specified by the customer. To maintain a constant temperature in the EV cabin, EVLINK's high voltage PTC liquid heater can activate the PID automatic adjustment function, quickly preheating while maintaining cell stability. Unlike traditional heaters, they do not have self-regulating features to prevent overheating, making them significantly safer and more energy-efficient.

Advantages of EVLINK High Voltage PTC Heaters

One of the main advantages of high voltage PTC heaters is their ability to provide rapid and even heating in large electric vehicles. They offer:

• Energy Efficiency: EVLINK's PTC heaters have high power and intelligent heat regulation to maintain the required temperature, optimizing the electric vehicle's battery life.
• Safety: Their self-regulating features reduce the risk of overheating and potential hazards, with built-in self-temperature protection functions.
• Rapid Heating: PTC heaters provide fast and efficient heating, ensuring passenger comfort even in extremely cold conditions.

Application of EVLINK High Voltage PTC Heaters in Electric Vehicles

High voltage PTC heaters are widely used in electric vehicles, contributing to a comfortable and environmentally friendly driving experience. They are integrated into various systems, including:

• Passenger Cabin Heating: Ensuring passengers remain warm in cold weather without affecting the electric bus's range.
• Battery Thermal Management: Working with battery thermal management units to maintain optimal battery temperature. Different heating powers can be selected to quickly preheat battery cells.
• Defrosting and Defogging: Unlike traditional defrosting and defogging methods, electric commercial vehicles need electric heaters to improve coolant heating and use fans to dissipate heat, enhancing visibility.

Choosing the Right EVLINK High Voltage PTC Heater

EVLINK's high voltage coolant heaters are precisely designed for electric commercial vehicles, helping you select the right high voltage PTC heater for your large electric vehicle. Based on the factors you provide, we customize PTC high voltage electric heaters:

• Voltage Range: EVLINK heaters support voltage requirements from 350V to 1100V, ensuring compatibility with the electric vehicle's electrical system.
• Heating Capacity: Match the PTC heater's output with the vehicle's heating requirements. EVLINK heaters support power outputs from 5kW to 35kW and have been mass-produced.
• Durability: Choose heaters designed for long-term reliability in challenging extreme environments. EVLINK's Q series heaters are made with aluminum die-casting, and their internal protection strategies are nearly completely safe, making them a reliable choice for large electric commercial vehicle projects.

Conclusion

High voltage PTC heaters have irreplaceable advantages in the electric vehicle heating field due to their low cost and high quality. Their energy efficiency, safety features, and rapid heating capabilities make them an indispensable part of modern electric vehicles. As the electric vehicle industry continues to evolve, high voltage PTC heaters are expected to play a more significant role in improving passenger comfort and driving range.