Bimetal KSD301 Normally Open Precision Temperature Control Switch Thermal Protector
High-performance snap-action bimetal thermostat designed for accurate temperature sensing and reliable circuit interruption in smoke alarm applications.
Product Specifications
| Product Name |
KSD301 Thermal Switch Thermostat |
| Temperature Range |
-10°C to 280°C |
| Tolerance |
±3°C, ±5°C |
| Current Rating |
10A/16A |
| Voltage Rating |
125V/250V AC |
| Material |
Ceramic or Bakelite Body |
| Primary Application |
Smoke Alarms |
Product Overview
The HCET HC301 KSD301 Series utilizes advanced bimetal disc technology to provide precise temperature control and reliable circuit protection. This compact thermal protector automatically activates at preset temperature thresholds to prevent equipment overheating, ensuring operational safety in demanding environments. Certified to UL, TUV, and RoHS standards for reliable performance across residential, commercial, and industrial applications.
Key Features
- Instant Snap-Action Mechanism: Bimetal disc ensures less than 3-second response time for critical temperature events
- Multi-Stage Temperature Adjustment: Custom calibration service with ±3°C precision for OEM requirements
- Space-Saving Profile: 15mm diameter compact housing fits confined spaces in PCB assemblies
- Cost-Effective Maintenance: Self-resetting design eliminates replacement costs from single-use fuses
Electrical Characteristics
Temperature Range: -10°C to 300°C
Temperature Tolerance: ±3°C, ±5°C
Electrical Specifications: 12VDC/24VDC: 10A~15A | 125VAC/250VAC: 10A~16A
Product Construction

Application Example
