| Rated Power: | 7kw |
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| High Voltage Rated Voltage: | DC410V |
| High Voltage Range: | DC250V~490V |
| Samples: |
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Shipping Cost:
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier 
As electric vehicles (EVs) become more popular, it is important to understand the key components that keep these vehicles running efficiently. Electric vehicle coolant heaters, also known as battery coolant heaters or automotive high-voltage heaters (HVCH), play an important role in maintaining the performance and reliability of electric vehicles.
EV coolant heaters regulate the temperature of the battery pack and high-voltage components of the electric drivetrain. These heaters help ensure the battery is operating within an optimal temperature range, which is critical to maximizing its performance, efficiency and longevity.
| Electric power | ≥7000W, Tmed=60ºC; 10L/min, 410VDC |
| High voltage range | 250~490V |
| Low voltage range | 9~16V |
| Inrush current | ≤40A |
| Control mode | LIN2.1 |
| Protection level | IP67&IP6K9K |
| Working temperature | Tf-40ºC~125ºC |
| Coolant temperature | -40~90ºC |
| Coolant | 50 (water) + 50 (ethylene glycol) |
| Weight | 2.55kg |
A. Overvoltage protection: The entire vehicle needs to have an overvoltage and undervoltage power supply shutdown function
B. Short-circuit current: It is recommended that special fuses be arranged in the high-voltage circuit of the heater to protect the heater and high-voltage circuit related parts.
C. The entire vehicle system needs to ensure a reliable insulation monitoring system and insulation fault handling mechanism.
D. High-voltage wire harness interlock function
E. Ensure that the positive and negative poles of the high-voltage power supply cannot be connected reversely
F: Heater design life is 8,000 hours
Vehicle installation environment requirements
A. The heater must be arranged according to recommended requirements, and it must be ensured that the air inside the heater can be discharged with the waterway. If air is trapped inside the heater, it may cause the heater to overheat, thereby activating software protection, which may cause hardware damage in serious cases.
B. The heater is not allowed to be placed at the highest position of the cooling system. It is recommended to place it at a relatively lower position of the cooling system.
C. The working environment temperature of the heater is -40ºC~120ºC. It is not recommended to install it in an environment without air circulation around high heat sources of the vehicle (hybrid vehicle engines, range extenders, pure electric vehicle heat exhaust pipes, etc.).
D. The permitted layout of the product in the vehicle is as shown in the figure above:
Hebei Nanfeng Automobile Equipment (Group) Co.,Ltd is a group company with 6 factories, that specially produce parking heaters, parking air conditioners, electric vehicle heaters and heater parts for more than 30 years. We are the leading parking heater manufacturers in China.
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.
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.
We are the largest PTC coolant heater production factory in China, with a very strong technical team, very professional and modern assembly lines and production processes. Key markets targeted include electric vehicles. battery thermal management and HVAC refrigeration units. At the same time, we also cooperate with Bosch, and our product quality and production line have been highly recoanized by Bosch.
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;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
Suppliers with verified business licenses
Audited Supplier 
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