8KW 600V Pure Electric Bus PTC Coolant Heater
Product Description
High-Voltage Coolant Heater (HVCH)
The High-Voltage PTC Water Heater is a critical thermal management component for new energy vehicles (including battery electric vehicles, plug-in hybrid electric vehicles, and fuel cell vehicles). Powered by a high-voltage DC battery pack (400V/800V), it heats the coolant to provide a heat source for cabin heating, battery preheating, defrosting/demisting, and thermal compensation for heat pump systems.
Utilizing PTC ceramic or thick-film heating technology, the Electric Coolant Heater features automatic temperature limiting, high thermal efficiency, operational safety, and rapid temperature response. Controlled via CAN bus and low-voltage signal interfaces, it is widely used in passenger cars, light commercial vehicles, and recreational vehicles (RVs).
Product parameter
| Model | WPTC07-1 | WPTC07-2 |
| Rated power (kw) | 10KW±10%@20L/min,Tin=0℃ | |
| OEM Power(kw) | 6KW/7KW/8KW/9KW/10KW | |
| Rated Voltage(VDC) | 350v | 600v |
| Working Voltage | 250~450v | 450~750v |
| Controller low voltage (V) | 9-16 or 18-32 | |
| Communication protocol | CAN | |
| Power adjust method | Gear Control | |
| Connector IP ratng | IP67 | |
| Medium type | Water: ethylene glycol /50:50 | |
| Overall dimension (L*W*H) | 236*147*83mm | |
| Installation dimension | 154 (104)*165mm | |
| Joint dimension | φ20mm | |
| High voltage connector model | HVC2P28MV102, HVC2P28MV104 (Amphenol) | |
| Low voltage connector model | A02-ECC320Q60A1-LVC-4(A) (Sumitomo adaptive drive module) | |
Temperature
|
Description |
Condition |
Minimum |
Typical |
Maximum |
Unit |
|
Storage temperature |
|
-40 |
|
105 |
℃ |
|
Working temperature |
|
-40 |
|
105 |
℃ |
|
Environment humidity |
|
5% |
|
95% |
RH |
Low voltage
|
Description |
Condition |
Minimum |
Typical |
Maximum |
Unit |
|
Control voltage VCC |
|
18 |
24 |
32 |
V |
|
Ground |
|
|
0 |
|
V |
|
Supply current |
Steady state current |
90 |
120 |
160 |
mA |
|
Starting current |
|
|
|
1 |
A |
High voltage
|
Description |
Condition |
Minimum |
Typical |
Maximum |
Unit |
|
Supply voltage |
Turn on heating |
480 |
600 |
720 |
V |
|
Supply current |
Nominal condition |
|
13.3 |
|
A |
|
Inrush current |
Nominal condition |
|
|
17.3 |
A |
|
Stand-by current |
Nominal condition |
|
|
1.6 |
mA |
Product size
Air conditioning control framework
In order to ensure the protection grade of the product IP67, insert the heating core assembly into the lower base obliquely, cover the (Serial No. 9) nozzle sealing ring, and then press the outer part with the pressing plate, and then put it on the lower base (No. 6) is sealed with pouring glue and sealed to the upper surface of D-type pipe. After assembling other parts, the sealing gasket (No. 5) is used between the upper and lower bases to ensure the good waterproof performance of the product.
Advantage
Electricity is used to heat the antifreeze, and the Electric PTC Coolant Heater For Electric Vehicle is used to heat the interior of the car. Installed in the water cooling circulation system
Warm air and temperature controllable Use PWM to adjust the drive IGBT to adjust the power with short-term heat storage function Whole vehicle cycle, supporting battery thermal management and environmental protection.
Application
Packing&Delivery
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;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.








