Factory Outlets 20-30A Ksd302/303 Bimetallic Snap Action Thermostat for Bathroom Appliances
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Product Details
| Customization: | Available |
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| Certification: | CQC |
| Display Type: | Ksd302/303 Thermostat |
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Basic Info.
- Model NO.
- KSD-1403
- Rated Voltage
- AC 250V
- Rated Current
- 20A/25A/30A (Resistive Load)
- Operating Temperature Range
- 60℃~200℃
- Temperature Tolerance
- ±3℃/±5℃/±8℃
- Reset Temperature Difference
- 10℃~25℃ (Customizable).
- Protection Rating
- IP40 (Dustproof/Moistureproof)
- Insulation Strength
- AC 50Hz 2000V/1min (No Breakdown)
- Insulation Resistance
- ≥100MΩ (DC 500V Megohmmeter).
- Contact Resistance
- ≤50MΩ
- Service Life
- ≥100,000 Cycles Under Resistive Load.
- Transport Package
- Carton Packaging
- Specification
- AC 250V
- Trademark
- Thermal International
- Origin
- China
- HS Code
- 9032100000
- Production Capacity
- 80, 000PCS/Week
Packaging & Delivery
- Package Size
- 36.00cm * 25.00cm * 30.00cm
- Package Gross Weight
- 7.800kg
Product Description
Product Description
Factory Outlets 20-30A KSD302/303 Bimetallic Snap Action Thermostat for Bathroom Appliances
This KSD302/303 model is a snap-action bimetallic thermostat.
Its core working principle is based on the difference in thermal expansion coefficients of the bimetallic strips, combined with mechanical transmission to achieve rapid circuit switching. Specifically, it consists of two stages: temperature-triggered disconnection and cooling-reset closure.
Its core working principle is based on the difference in thermal expansion coefficients of the bimetallic strips, combined with mechanical transmission to achieve rapid circuit switching. Specifically, it consists of two stages: temperature-triggered disconnection and cooling-reset closure.
Compared to the standard KSD301 model, the core principle is the same, but this enhanced model has a more stable transmission structure: it uses a ceramic actuator instead of the plastic transmission component of the KSD301, offering higher high-temperature resistance and mechanical strength. In high-power/high-temperature scenarios, it avoids contact failure caused by deformation of the transmission component.
In short:
it is an "upgraded version" of KSD301, which is more durable and adaptable to a wider range of scenarios (especially high-power/high-temperature/humidity equipment).
Specification
Basic Parameters: | |
Product Description | Bimetallic Snap Action Thermostat |
Model Number | KSD302/303 (High-power version with metal bracket) |
Working Principle: | Bimetallic strip snap-action (temperature-sensitive deformation triggers on/off switching) |
Contact Type | Normally closed (default closed, disconnects over-temperature; automatically resets after temperature drop). |
Electrical Specifications: | |
Rated Voltage | AC 250V (some models support AC 400V) |
Rated Current | 20A/25A/30A (resistive load) |
Temperature Range | Operating Temperature: 60℃~200℃ (one specification in 5℃ increments, e.g., 80℃/90℃/100℃, etc.) Temperature Tolerance: ±3℃/±5℃/±8℃ Reset Temperature Difference: 10℃~25℃ (Customizable) |
hysical and Environmental Parameters: | |
Housing Material | Metal + Ceramic / High-Temperature Resistant Engineering Plastic |
Heat Resistance | Long-term operating temperature ≤200℃, mounting surface temperature ≤220℃ |
Protection Rating | IP40 (Dustproof / Moistureproof) |
Installation Method | Metal bracket + dual mounting holes (for screw fixing) |
Dimensions | Approx. 40mm × 30mm × 15mm (Metal cover diameter ≈ 25mm) |
Performance Parameters | |
Service Life | ≥100,000 cycles under resistive load (auto-reset type) |
Insulation Strength | AC 50Hz 2000V/1min (no breakdown) |
Insulation Resistance | ≥100MΩ (DC 500V megohmmeter) |
Contact Resistance | ≤50mΩ |
Below is a selection and matching table for this product (recommended temperature/current for different devices).
Equipment type | Recommended operating temperature | Recommended rated current | Reason for compatibility |
Commercial water heaters | 85℃/90℃ | 25A/30A | High-power heating, requiring high temperature resistance and high current. |
Industrial mini heaters | 120℃/150℃ | 20A/25A | High-temperature operating environment, requiring high heat resistance. |
Bathroom fan heaters | 80℃/85℃ | 20A | Humid environment, requiring IP40 protection and overheat protection. |
Commercial (small) ovens | 180℃/200℃ | 25A | High-temperature baking scenarios, suitable for 200℃ tolerance. |
High-power electric irons | 160℃/180℃ | 20A | Rapid heating equipment, requiring precise temperature control. |
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Packing & Delivery
Certifications
FAQ
FAQ
Q1 Are you trader?
A1 We are factory.
Q2 What's your lead time for 5000pcs?
A2 We need around 20days after down payment received. .
Q3 You payment term?
A3 We accept LC, T/T 20% remittance +80% before delivery, DP.
Q4 Can we print our LOGO on heating element?
A4 Yes.
Q5 Do you offer guarantee?
A5 Yes. We offer 1 year guarantee.
A1 We are factory.
Q2 What's your lead time for 5000pcs?
A2 We need around 20days after down payment received. .
Q3 You payment term?
A3 We accept LC, T/T 20% remittance +80% before delivery, DP.
Q4 Can we print our LOGO on heating element?
A4 Yes.
Q5 Do you offer guarantee?
A5 Yes. We offer 1 year guarantee.
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