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How to Select the Right PTC Heater?
1. Consultation>> 2. Simulation>> 3. Design>> 4. Prototyping >> 5. Manufacturing
Product Description
Choosing the right PTC (Positive Temperature Coefficient) heater is critical for ensuring efficiency, reliability, and safety in your application. This guide is designed to help engineers, purchasers, and project managers make the right selection based on voltage, power, environment, and customization needs.
Step-by-Step Selection Guide
- Define Your Application: Automotive, EVs, HVAC, medical devices, marine, or industrial equipment all require different durability, airflow, and safety standards.
- Check Voltage Requirements: KLC heaters support 12V AC/DC up to 999V. Confirm compatibility with your system’s power source.
- Select Power Range: Choose from 30W to 10,000W based on your thermal demand and system size.
- Consider Environmental Protection: For harsh, humid, or outdoor conditions, select IP68-certified heaters for proven reliability.
- Choose Customization Options: Options include insulated vs. live parts, adjustable airflow, and multi-stage heating for efficiency.
- Verify Compliance and Safety: Ensure your heater meets UL, CSA, and VDE standards.
- Consult with Experts: Our engineers provide simulation, validation, and customization support to ensure seamless integration.
Contact Our Engineers to get tailored recommendations for your project.
Customization and Integration?
With rapid prototyping and flexible design, KLC delivers custom PTC heating solutions that integrate seamlessly into existing systems.
Our 5-Step Process
- Consultation: Understand application needs and performance goals.
- Simulation: Use advanced tools to optimize designs before production.
- Design: Create reliable heaters tailored to your environment.
- Prototyping: Rapid samples for validation and refinement.
- Manufacturing: Scalable production with strict quality control.
Design Considerations
When selecting or designing a PTC heater, consider the following:
- Required dimensions and model type
- Voltage and wattage requirements
- Ambient temperature and expected temperature rise
- Time to reach target temperature
- Material, size, and weight of the object to be heated
- Attachment method (clamping or adhesive)
- Optional accessories (thermostat, heat sink, fan, etc.)
PTC Air Heater Models
| Model | Dimensions (mm) | Tube No. | Fin Width (mm) | Fin Pitch (mm) | Standard | Wired |
|---|---|---|---|---|---|---|
| MH | 26 × 90 × L (70–492) | 2 or 3 | 90 | 1.2 / 2.0 / 2.6 | Yes | Yes |
| MSH | 26 × 65 × L (70–492) | 3 | 65 | 1.68 / 2.6 | Yes | Yes |
| SH | 26 × 65 × L (70–492) | 2 | 65 | 1.68 | Yes | Yes |
| TH | 26 × 45 × L (70–492) | 2 | 45 | 2.0 | Yes | Yes |
| OH | 26 × 30 × L (30–492) | 1 | 30 | 1.68 | Yes | Yes |
| SS | 22 × 22.3 × 15 ~ 361 × 267.6 × 15 | – | – | – | Yes | – |
| STW (high voltage) | 10 × 10 × 10 ~ 999 × 337.5 × 25 | – | – | – | Yes | Yes |
Related Products:
- PTC air heater frames
- PTC heat conductors
- PTC Thermistors
- PTC heaters for Electric Vehicles
- PTC heater for constant battery discharge
- High Voltage PTC Air heater
- PTC applications
Voltage and Power Considerations
Standard Voltages: 100V–120V, 200V–240V, and high voltage options above 480V. Other ranges available upon request.
Airflow Impact: High airflow increases power and heat dissipation, while low airflow raises outlet temperature. Without airflow, the heater stabilizes at its Curie temperature.
Fin Pitch Selection
- 1.2mm (S) / 1.68mm (M): Higher heat output, higher outlet temperature.
- 2.0mm (N): 95% of S-type power, with lower noise.
- 2.6mm (B): 90% of S/M-type power, lowest airflow resistance.
Insulation Consideration
Choose between live part or electrically insulated heaters:
- Insulated heaters provide complete electric insulation, ideal for safety-critical applications.
- Expect ~10% lower power output compared to live part heaters.
- Cost is typically 15–30% higher than live part models.
Accessories
KLC provides a range of accessories for flexible integration:
- Frames (square, L-shaped, compact)
- Fans and protective shields
- Thermostats, fuses, and terminal wire sets
For part numbering and detailed specifications, please contact our engineers.
Get Expert Support
Our engineers are ready to help you design and select the optimal PTC heater for your project.
KLC Corporation
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