The market for electric vehicles in the U.S. is rising, with record sales reported in the second quarter of . This has resulted in a need for more efficient vehicle components, such as the ones used in modern heating and cooling systems. That is why KUS now offers components for energy-efficient vehicles, including our positive temperature coefficient (PTC) heating units. Here's what you need to know about PTC heaters and their role in thermal management systems.
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What Is a PTC Heater?
PTC heaters operate on the principle that the electrical resistance of the heater increases as the heater's temperature increases. The result is a self-regulating heating system. Unlike traditional heating elements that might require external thermostats or regulators, PTC heaters automatically adjust their heat output based on ambient temperature, this increases performance and reduces risks of potential thermal events.
One of the standout benefits of using PTC heaters over traditional heating elements is their efficiency. These systems can generate more heat while using less energy. By conserving energy, these heaters offer tangible benefits for electric vehicles, such as increased cruising ranges.
Comparing PTC Coolant Heaters and PTC Air Heaters
While PTC heaters have gained popularity in the automotive industry, it's important to understand that different types are designed for specific applications. Two of the most commonly used types are PTC coolant heaters and PTC air heaters.
PTC Coolant Heaters
PTC coolant heaters are designed to heat a vehicle's coolant. It primarily serves as a channel with a heating element to help maintain the vehicle's battery at an optimal temperature. For this reason, they serve as an essential component for electric applications, especially during colder months. Maintaining the correct temperature for the battery ensures longevity and maximizes the vehicle's performance.
PTC Air Heaters
As the name suggests, PTC air heaters focus on heating air directly. They are often used with a vehicle's HVAC system to ensure the interior remains comfortable for passengers. In many modern vehicles, PTC air heaters have replaced the traditional heater core used in older models. PTC air heaters provide immediate warmth since they don't rely on a secondary medium like coolant. This direct method can offer more rapid temperature changes in the cabin, enhancing passenger comfort, and help to decrease additional leak path potentials.
The Role of PTC Heaters in Alternative Energy Vehicles
KUS heaters feature impressive designs that help them serve in various applications. Our heaters stand out for several reasons, including:
PTC Heater Benefits and FAQs
KUS PTC heaters offer several advantages over traditional heating elements. However, many are unfamiliar with these benefits. Here are some of the most common questions we receive about our PTC heater products.
What is the benefit of the PTC heating element?
The main benefits are energy efficiency, precise temperature control, and compact size. PTC heaters self-regulate their heat output based on conditions, maximizing efficiency.
How efficient is a PTC heater?
PTC heaters are very efficient. They generate more heat using less energy compared to traditional heating elements, thanks to their automated, self-regulating design.
What is the maximum temperature for a PTC heater?
PTC heaters can typically heat up to around 572°F (300°C) efficiently. The maximum temperature depends on the specific heater's design and specifications.
Are PTC heaters cheaper to run?
Yes, PTC heaters are generally cheaper to operate. Their energy efficient design means they use less electricity to produce heat. This saves on energy costs compared to less efficient heating methods.
What size are KUS PTC heaters?
With the push toward more compact vehicles, every inch of space counts. KUS PTC heaters feature compact designs without compromising efficiency. At the same time, we offer multiple PTC heater products that meet the needs of a wide variety of applications.
PTC Heater Models and Specifications
From Electric Automotive vehicles to Material Handling and Industrial/Commercial platforms, KUS PTC heaters can be used in a wide range of applications. Review our popular PTC heater models in the chart below.
KUS PTC Water (Coolant) Heater Models
Model Rated Voltage Rated Power Rated Condition Dimension (L*W*H) Customized Pressure DropNPH10A
80V
3kW
Flow rate: 10L/min
Coolant temp: 32°F/0'
182*136*112
10kPa
NPL20
350V
5kW
Flow rate: 10L/min
Coolant temp: 140°F/60'
182*136*110
5.5kPA
NPH30A
600V
7kW
Flow rate: 10L/min
Coolant temp: 32°F/0'
221*136*110
20kPa
NPH30C
600V
7kW
Flow rate: 25L/min
Coolant temp: 32°F/0'
321*170*128
14.7kPa
NPH40
600V
10kW
Flow rate: 10L/min
Coolant temp: 32°F/0'
255*299*104
3kPa
NPH50
600V
15kW
Flow rate: 25L/min
Coolant temp: 32°F/0'
255*229*104
8.6kPa
NPK40
800V
10kW
Flow rate: 12L/min
Coolant temp: 140°F/60'
255*247*104
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3kPA
NWL40
350V
4kW
Flow rate: 12L/min
Coolant temp: 68°F/20'
153*191*88
3kPa
NWH80
800V
8kW
Flow rate: 12L/min
Coolant temp: 68°F/20'
200*237*88
5kPa
KUS PTC Air Heater Models
Model Rated Voltage Rated Power Rated Condition Dimension (L*W*H mm) WeightAir Heater (Integrated Type)
800V
10kW
Inlet air temp: 77°F/25'
Air speed: 7m/s
370*260*108
6.5kg
Air Heater (Split Type)
600V
5kW
Inlet air temp: 77°F/25'
Air speed: 4.5m/s
250*280*32
3.0kg
Air Heater (Integrated Type)
600V
5kW
Inlet air temp: 77°F/25'
Air speed: 4.5m/s
317*180*108
3.7kg
Air Heater (Split Type)
350V
5kW
Inlet air temp: 77°F/25'
Air speed: 4.5m/s
250*280*32
2.8kg
Air Heater (Integrated Type)
48V
4kW
Inlet air temp: 77°F/25'
Air speed: 4.5m/s
227*167*98
3.1kg
Air Heater (Integrated Type)
350V
3kW
Inlet air temp: 77°F/25'
Air speed: 4.5m/s
305*180*108
3.1kg
Heat Pump Air Conditioning Auxiliary Heater
12V
1kW
Inlet air temp: 77°F/25'
Air speed: 4.5m/s
27*93*30
0.7kg
For more information, visit our PTC heaters product page.
Explore More New Energy Products From KUS
PTC heaters will play an increasingly important role in vehicles moving forward. With their efficiency, safety features, and adaptability, they are set to redefine vehicle heating systems.
At KUS, we're ready to meet the changing demands of the automotive industry. With our range of PTC heaters and other new energy products built and tested in-house, we're your trusted partner for a large selection of marine, vehicle, and industrial applications. Contact us today to speak with an expert on our team to learn more about how our products can meet your project needs.
PTC (Positive Temperature Coefficient) heaters are generally considered to be energy-efficient for certain applications, especially when compared to traditional resistance heaters like nichrome wire heaters.
PTC heaters offer several advantages in terms of energy efficiency:
1. Self-Regulation: PTC heaters are designed with a ceramic element that exhibits a positive temperature coefficient. This means that as the temperature of the PTC material rises, its resistance increases. As a result, when the heater approaches its target temperature, its power consumption automatically decreases. This self-regulating feature is a key factor in their energy efficiency because it prevents overheating and reduces the risk of wasting energy.
2. Temperature Control: PTC heaters often require less complex temperature control systems compared to traditional heaters. This simplicity can lead to energy savings by reducing the need for additional components and the associated energy consumption.
3. Reduced Energy Waste: PTC heaters do not continuously draw maximum power once they reach their desired temperature. Traditional heaters often require cycling on and off to maintain the desired temperature, which can lead to energy waste. PTC heaters can maintain a more stable temperature without frequent cycling, saving energy in the process.
4. Fast Heating: PTC heaters can heat up rapidly, reaching their target temperature quickly. This fast response time is beneficial in applications where rapid heating is required. Since they reach the desired temperature quickly, they spend less time consuming energy, contributing to energy efficiency.
5. Even Heat Distribution: PTC heaters provide relatively uniform heating across their surface. This even heat distribution can reduce the need for overcompensation, where excess heat is generated to ensure that all areas reach the desired temperature. This can result in energy savings by eliminating the need for unnecessary heating.
6. Durability: PTC heaters are known for their durability and longevity. They are less prone to failure and typically have a longer operational lifespan compared to some other heating elements. This durability can reduce the frequency of replacements and maintenance, leading to energy and cost savings over the long term.
It's important to note that while PTC heaters are generally energy-efficient for many applications, their efficiency can vary depending on the specific design, application, and usage. Proper selection and sizing of the PTC heater for a given application are crucial to maximizing energy efficiency. Additionally, energy efficiency should be considered in the context of the entire heating system, including insulation, control mechanisms, and overall system design.
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