Temperature Controlled Switches (TDS): A Buyer's Guide for 2025
Temperature Controlled Switches (TDS) are essential components in various industries, ensuring optimal performance and safety by regulating temperature-sensitive systems. Whether you're in HVAC, manufacturing, or home automation, choosing the right TDS can make all the difference. This guide will help you navigate the market, especially when sourcing from China in 2025.
How to Find Reliable Temperature Controlled Switches (TDS) from China in 2025
China remains a global hub for electrical components, including TDS. To find reliable suppliers:
- Check certifications like ISO 9001 and CE marks
- Review supplier history on platforms like Alibaba
- Request product samples before bulk orders
- Verify factory audits and production capacity
What Buyers Should Know Before Buying Temperature Controlled Switches (TDS) from China
When importing TDS from China, consider:
- Lead times (typically 15-30 days for production)
- Minimum order quantities (often 100-500 units)
- Shipping costs and import duties
- After-sales support and warranty terms
Types of Temperature Controlled Switches (TDS)
Common TDS variants include:
- Bimetallic switches: Affordable and durable
- Electronic switches: High precision (±0.5°C)
- Capillary tube switches: Ideal for refrigeration
- Digital programmable switches: For smart systems
Functions and features of Temperature Controlled Switches (TDS)
Modern TDS offer:
- Temperature ranges from -40°C to 300°C
- IP65+ waterproof ratings for harsh environments
- Adjustable hysteresis (3-10°C typical)
- LED indicators and manual override options
Scenarios of Temperature Controlled Switches (TDS)
TDS are used in:
- Industrial ovens and furnaces
- HVAC systems (preventing coil freezing)
- Food processing equipment
- Electric vehicle battery management
How to Choose Temperature Controlled Switches (TDS)
Selection criteria:
- Match temperature range to your application
- Consider electrical load (typically 10-16A)
- Choose appropriate probe length (50-300mm common)
- Verify material compatibility (stainless steel for corrosive environments)
Temperature Controlled Switches (TDS) Q & A
Q: What's the lifespan of a typical TDS?
A: Quality switches last 50,000-100,000 cycles, with industrial-grade models exceeding 200,000 cycles.
Q: Can TDS work with DC and AC currents?
A: Most support both, but always check specifications - some models are AC-only.
Q: How accurate are budget TDS units?
A: Entry-level switches typically have ±3°C accuracy, while premium models achieve ±0.5°C.
Q: What's the difference between normally open and closed TDS?
A: NO switches close on temperature rise, NC switches open - choose based on fail-safe requirements.
Q: Are smart TDS worth the extra cost?
A: For remote monitoring applications, yes. Basic automation doesn't require smart features.
