NF GROUP 7KW PTC Coolant Heater 400V 500V 600V 700V Electric Vehicle PTC Heater
Description
Introducing our advanced High Voltage PTC Heater (HVCH), a next-generation thermal management solution designed for modern electric, hybrid, and fuel cell vehicles. This HV Coolant Heater delivers exceptional performance, safety, and adaptability, making it the ideal choice for cabin heating, battery thermal regulation, and system pre-conditioning.
Engineered with ceramic PTC heating elements, this high voltage heater ensures rapid and efficient heat generation, significantly outperforming traditional internal combustion systems. Its innovative curved fluid path design maximizes heat exchange efficiency, while a fully integrated controller supports smart functions such as temperature protection, over-current/voltage safeguards, sleep mode, and multi-stage power adjustment.
The unit features six heating elements grouped into four independently controlled circuits, enabling flexible power output management and reduced inrush current during startup. This battery coolant heater not only accelerates warm-up times but also enhances energy efficiency and system durability.
To ensure operational safety, the HVCH requires correct installation—including proper grounding, correct polarity connection, and additional vehicle-side protections such as DC fusing and insulation monitoring. An interlock mechanism is also integrated into the high-voltage connectors for enhanced safety.
Housed in a compact plastic shell that provides thermal isolation and reduces heat loss, this high voltage PTC heater is both lightweight and highly reliable. Its redundant sealing design and corrosion-resistant structure make it suited for demanding under-hood environments.
Whether used in driving or parking mode, this heater offers a robust, scalable, and efficient solution for all your thermal management needs—from passenger comfort to battery temperature control and fuel cell cold start support.
Discover how our HVCH can elevate your vehicle’s performance and safety—read on to learn more about its technical innovations and application benefits.
Parameter
|
Type |
Condition | Minimum value | Typical value | Maximum value | Unit |
| Working ambient temperature | -40 | 85 | ℃ | ||
| Storage temperature | -40 | 120 | ℃ | ||
| Relative humidity | RH | 5% | 95% | ||
| Coolant temperature | -40 | 90 | ℃ | ||
| In-shell coolant capacity | 320 | mL | |||
| Coolant specification | Glycol/Water | 50/50 | |||
| External dimensions | 223.6*150*109.1 | mm | |||
| Input power | DC600V,10L/min,60℃ | 6300 | 7000 | 7700 | W |
| Life expectancy | 20000 | h | |||
| Low voltage voltage range | DC | 18 | 24 | 32 | V |
| Low Voltage Supply Current | DC | 40 | 70 | 150 | mA |
| Low voltage quiescent current | Sleep state | 15 | 100 | uA | |
| High voltage voltage range | DC | 450 | 600 | 750 | V |
| High voltage discharge time | High voltage disconnection | 5 | s | ||
| High voltage interlock function | Yes | ||||
| Protection class | IP67 | ||||
| Protection functions | Overcurrent, short circuit, overheating, overvoltage, undervoltage and other protection functions | ||||
| Temperature detection | There are temperature sensors at the water inlet and outlet positions and on the PCB | ||||
| Overheat protection threshold | Coolant > 70℃, hysteresis 10℃ | ||||
| Communication interface | CAN | ||||
Your vision, our expertise.
We work with you to customize critical parameters—from rated power and voltage to the full operational range—ensuring the product performs exactly as you need.
Reach out today to begin planning your customized solution.
International Transportation
Our Advantage
Hebei Nanfeng Automobile Equipment (Group)Co.,Ltd was established in 1993,which is a group company with 6 factories and 1 international trading company.We are the biggest vehicle heating & cooling system manufacturer in China and the designated supplier of Chinese military vehicles.Our main products are high voltage coolant heater,electronic water pump,plate heat exchanger,parking heater,parking air conditioner,etc.
Our factory's production units are equipped with high tech machineries,strict quality control testing devices and a team of professional technicians and engineers endorsing the quality and authenticity of our products.
In 2006,our company has passed ISO/TS 16949:2002 quality management system certification.We also bagged the CE certificate and E-mark certificate making us among the only few companies in the world acquiring such high level certifications.Currently being the largest stakeholders in China,we hold a domestic market share of 40% and then we export them around the globe particularly in Asia,Europe and Americas.
Meeting the standards and demands of our customers have always been our top priority.It always encourages our experts to continuously brain storm,innovate,design and manufacture new products,impeccably suitable for the Chinese market and our customers from every nook of the world.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 100% in advance.
Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
Q4. How about your delivery time?
A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit.
A lot of customer feedback says it works well.
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
