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High Voltage Coolant Heater
for Electric Vehicles | EVLINK
15–35kW high-voltage PTC coolant heating solution for electric vehicle battery and thermal management systems
15–35kW+
400–1000V
CAN Control
OEM/ODM
Product Overview
High Voltage Coolant Heater for Electric Vehicles
EVLINK High Voltage Coolant Heaters are designed for electric vehicle coolant heating and thermal management applications. With a rated heating power range of 15–35kW and an operating voltage range of 400–1000V, the heater can support different EV electrical architectures and thermal requirements.
The system combines high-voltage electric heating, CAN communication, PID temperature control and multiple electrical protection functions to support reliable vehicle-level thermal management.
Rated voltage, electrical interfaces and product configurations can be customized according to specific vehicle platforms and OEM project requirements.
Product Views
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Power | 15–35kW |
| Rated Voltage | Customizable |
| Operating Voltage Range | 400–1100V |
| Operating Temperature | -40°C to +85°C |
| Insulation Resistance | ≥100 MΩ @ DC1000V, High-Voltage Section |
| Protection Rating | IP67 |
| Communication | CAN Communication / Enable Signal |
| EMC | ISO 11452 Class 3 |
| Temperature Control | PID Control |
| Diagnostics | Fault Self-Diagnosis |
| Power Management | Automatic Power Limiting |
| Safety Protection | Overvoltage / Undervoltage / Overcurrent / Short Circuit / Overheat |
| Warranty | 2 Years |
| Weight | 12 kg |
| Certifications | CE / E-Mark / UL |
How It Works
How Does a High Voltage Coolant Heater Work?
01
High Voltage Power Input
The heater receives electrical energy from the vehicle high-voltage system.
02
PTC Heating
The heating element converts electrical energy into thermal energy.
03
Coolant Heat Transfer
Thermal energy is transferred directly to the coolant flowing through the heater.
04
Coolant Circulation
The heated coolant circulates through the vehicle thermal management circuit.
05
Intelligent Control
CAN communication and PID control coordinate heater output according to vehicle thermal requirements.
High-Voltage Safety
Integrated High-Voltage Safety Protection
Multiple electrical and thermal protection functions are integrated to support safe operation within high-voltage vehicle systems.
Overvoltage Protection
Undervoltage Protection
Overcurrent Protection
Short-Circuit Protection
Overheat Protection
Applications
Electric Commercial Vehicles
Thermal management for battery systems used in electric commercial vehicle platforms.
Electric Buses
Designed for integration with liquid-cooled battery systems in electric bus applications.
Electric Trucks
Supports battery cooling requirements for electric truck thermal management systems.
Special-Purpose EVs
Suitable for EV platforms requiring compact liquid cooling and intelligent thermal control.
OEM / ODM
From Custom Development to Mass Production
EVLINK supports OEM and ODM projects from technical requirement analysis and product configuration to prototype development, validation, vehicle integration and production delivery
01 Requirement Analysis
→
02 Product Configuration
→
03 Prototype Development
→
04 Testing & Vehicle Integration
→
05 Mass Production
Certification
Automotive Safety & Compliance
ISO 26262 Functional Safety
TÜV Rheinland CE / LVD
SGS / UL 499
IATF 16949:2016
ISO 14001:2015
Certification applicability may vary according to product configuration and target market requirements.
FAQ
High Voltage Coolant Heater FAQs
1. What is a High Voltage Coolant Heater?
A High Voltage Coolant Heater is an electrically powered heating unit designed to heat coolant in electric vehicle thermal management systems. It can support battery heating, cabin heating and other coolant-based thermal management functions.
2. What heating power is available?
The current product platform supports 15–35kW rated heating power, depending on the selected configuration.
3. What voltage range does the heater support?
The specified operating voltage range is 400–1100V, while rated voltage can be customized according to project requirements.
4. Does the High Voltage Coolant Heater support CAN communication?
Yes. The heater supports CAN communication and enable signal control for vehicle-level system integration.
5. What is the operating temperature range?
The specified operating temperature range is -40°C to +85°C.
6. What protection functions are included?
The heater includes overvoltage, undervoltage, overcurrent, short-circuit and overheat protection.
7. Does the heater support PID temperature control?
Yes. PID control is supported together with fault self-diagnosis and automatic power limiting.
8. Can the High Voltage Coolant Heater be customized?
Yes. Rated voltage, heating power, electrical connectors, coolant interfaces, CAN communication and mechanical configuration can be evaluated according to project requirements.
9. What certifications are available?
The supplied product specification lists CE, E-Mark and UL, together with EMC requirements based on ISO 11452 Class 3.
10. What information should I provide for product selection?
Please provide your vehicle type, voltage range, heating power requirement, coolant flow, operating temperature, installation space and CAN communication requirements.
START YOUR PROJECT
Looking for a 15–35kW High Voltage Coolant Heater?
Share your voltage platform, heating power, coolant requirements, installation space and CAN communication requirements with our engineering team
START YOUR PROJECT
Need a Thermal Solution for Your Electric Truck?
Tell us your truck type, battery capacity, voltage platform, operating environment, installation space and CAN requirements. Our engineering team will help define the right thermal solution.