Wholesale 20kw Heater Supplier, Suppliers

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Wholesale 20kw Heater Supplier, Suppliers

Product Application
Overview:
This 20KW electric heater uses thick film heating technology to meet the safety requirements of passenger cars for high voltage; fully independent controller, integrated with multiple functions, easy and safe to use.

Main applications:
Heating of hydrogen fuel engines, power batteries and air conditioners.

Product features:
Compact structure, high power density,
Flexible adaptation and installation of plastic shell, thermal isolation between the frame, low heat dissipation, high efficiency
Redundant sealing design, high system reliability
Efficiency greater than 95%
Overcurrent, short circuit, overheating and other protection functions

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Product Description

⚡ Product Structure & Performance

📊 Technical Parameters and Selection

Parameter Item	Specification Details (PTC Water Heating Heater)
Operating Temperature Range	-40℃ ~ 85℃
Storage Temperature Range	-40℃ ~ 120℃
Medium Temperature	-40℃ ~ 90℃
Medium Type	Water:ethylene glycol / 50:50
Humidity Condition (RH)	5% ~ 95%
Dimensions	316 * 240 * 238mm
Weight	6kg
Power / KW	20±10%KW @60℃, 10L/min
Insulation Resistance MΩ	≥100 @DC1000V
Withstand Voltage mA	≤20 @AC2500V/60s
Minimum Flow Requirement	30L/min
Communication Protocol	CAN
Connector IP Level	IP67 (High and Low Voltage)
High Voltage Working Range	450-750V (DC)
Low Voltage Operating Range	9-32V (DC)
Low Voltage Static Current	≤0.1mA (With sleep function)
Temperature Detection	Water inlet and outlet equipped with temperature sensors
Power-off Threshold	Coolant > 80℃ (Adj. 10℃) / PCB > 125℃ (Adj. 15℃)

🛠 Customized Requirements

The lower limit of the voltage range can be adjusted based on specific needs.

Power output is adjustable according to customer needs under different temperature conditions.

Customizable temperature protection points.

Selectable baud rate: 250K or 500K.

120Ω terminal resistance optional according to requirements.

Full support for OEM/ODM services.

Note: The pin definition of high and low voltage plug-ins cannot be adjusted.

⚠️ Precautions

Recommended installation: Water inlet horizontal, heater vertical installation.

The electric heater must be properly grounded during installation.

Ensure high-voltage power supply has correct polarity and over/undervoltage protection.

An independent high-voltage DC fuse must be installed on the vehicle side for short-circuit protection.

Vehicle installation requires an insulation tester for leakage detection.

❓ Frequently Asked Questions

What is the protection rating of this PTC water heater?

The heater connectors for both high and low voltage meet the IP67 protection level, ensuring excellent dust and water resistance.

Can the power and voltage range be customized?

Yes, the lower limit of the voltage range and the power output can be adjusted according to specific customer requirements and testing conditions.

What communication protocol does the heater use?

The device utilizes the CAN communication protocol, supporting selectable baud rates of 250K or 500K.

What is the weight and size of the unit?

The heater weighs 6kg and has physical dimensions of 316 * 240 * 238mm.

What are the safety requirements for vehicle installation?

It is required to install an independent high-voltage DC fuse for short-circuit protection and an insulation tester for leakage detection on the vehicle side.

Does it support temperature monitoring?

Yes, the unit features built-in temperature sensors at both the water inlet and outlet for real-time monitoring.