7KW PTC Coolant Heater With LIN Control

 

7KW PTC Coolant Heater With LIN Control

 

 

 

Electric power	≥7000W, Tmed=60℃; 10L/min, 410VDC
High voltage range	250~490V
Low voltage range	9~16V
Inrush current	≤40A
Control model	LIN2.1
Protection level	IP67&IP6K9K
Working temperature	Tf-40℃~125℃
Coolant temperature	-40~90℃
Coolant	50 (water) + 50 (ethylene glycol)
Weight	2.55kg

 

Product Structure:

 

Product Size:

 

 

 

 

Advantage 1: Highly Efficient and Stable 7kW Heating Performance, Quickly Solving Winter Thermal Management Pain Points

 

• Rated power 7000W (±10% error), stably outputting high heat under 0℃ coolant and 10L/min flow conditions, with a thermal efficiency ≥95%, significantly shortening the time for preheating the vehicle's heater and warming up the power battery at low temperatures, effectively alleviating the problem of reduced range in winter.

 

• Employs PTC ceramic self-limiting heating elements, achieving constant temperature control without additional temperature control devices, avoiding the risk of overheating. The entire heating process is stable and controllable, greatly improving the reliability of the thermal management system.

 

Advantage 2: LIN Bus Intelligent Control, Easily Adapting to the Whole Vehicle System for Precise Collaboration

 

• Supports the standard LIN bus communication protocol, allowing direct interface with the vehicle's ECU to achieve power graded adjustment, closed-loop temperature control, real-time fault diagnosis, and operational status feedback, providing high control precision and fast response speed.

 

• Built-in multiple safety protection strategies (overvoltage/undervoltage, overtemperature, dry burning, insulation monitoring, etc.) allow for proactive fault reporting to the entire vehicle system, meeting automotive functional safety requirements while reducing the complexity of vehicle development and integration.

 

Advantage Three: High-protection, high-insulation industrial-grade design, adaptable to complex automotive environments

 

• All-aluminum die-cast housing with IP67-rated waterproof and dustproof sealing design, able to withstand vibrations, moisture, and high/low temperature shocks during vehicle operation (operating temperature -40℃~120℃), suitable for harsh driving scenarios such as extreme cold and rain/snow.

 

• Insulation resistance ≥100MΩ, high-voltage safety performance meets automotive standards, eliminating the risk of leakage, maintaining stable electrical performance even after long-term use, and a service life far exceeding ordinary heating solutions.

 

Advantage 4: Wide Operating Condition Adaptability + Compact Structure, Strong Adaptability and Easy Installation

 

• Supports a wide voltage input range of DC 500V~700V and DC 16V~32V, covering the voltage platforms of mainstream new energy passenger vehicles, commercial vehicles, and fuel cell vehicles. It can be adapted to most vehicle models without additional modifications.

 

• Compact integrated design with a clear interface layout (clearly defined high-voltage/low-voltage/coolant interface partitions). Its small size makes it easy to install, and it can directly replace original parts or be integrated into existing cooling pipelines, reducing installation and after-sales maintenance costs.

 

 

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