Reusable SEKI Thermal Protector / Bimetal Thermal Switch ROHS Certificated ST-22
SEKI's bimetal thermostats are overheat protection devices for electric appliances. These reusable parts automatically reset when equipment cools down. If the fault persists, the motor protectors continue to provide automatic protection for the equipment.
Product Overview
The ST-22 Bimetal Thermostat is a snap-action, automatic reset thermal protector featuring moisture-proof, dust-proof construction with superior heat response. It utilizes high-grade thermoplastic insulation for reliable overheat protection in various applications.
Key Features
- Snap action mechanism for reliable operation
- Automatic reset functionality
- Moisture-proof and dust-proof construction
- Superior heat response characteristics
- High-grade thermoplastic insulation
- ROHS certified for environmental compliance
Applications
Designed for overheat protection in: Electric Motors, Fluorescent Ballasts, Battery Chargers, Transformers, Solenoids, Heating Pads, OA-Machines, and various electrical equipment.
Technical Specifications
| Temperature Setting Range |
70°C ~ 150°C (at no load) |
| Tolerance |
±5°C |
| ON-OFF Differential Temp |
30 ± 15K (general) |
| Heat Endurance |
Open temp. +50°C/continuity, 200°C/1 min. |
| Life Test (Resistive Load) |
8A/125V - 10,000 cycles 5A/250V - 10,000 cycles |
| Contact Capacity |
Min. Current: 50mA/continuity Max. Current: 30A/5 cycles |
Note: SEKI offers two bimetal thermostat models - ST-12 for hair dryers, electric fan heaters, popcorn machines, and similar appliances, and ST-22 for motor protection and industrial applications as specified above.