Thermik S01 Bimetallic Thermal Switch Protector 250V 3A 140°C 40mm Snap Action Thermostat
The Thermik S01 Cross Button Type Snap Action Thermal Protector is a precision bimetallic thermostat designed for reliable overheating protection in electrical applications. With ratings of 250V AC 3A and operating temperature of 140±5°C, this 40mm device provides rapid circuit interruption when temperature thresholds are exceeded.
- Compact 40mm size for easy mounting in space-constrained applications
- Snap-action bimetallic mechanism for rapid response to temperature changes
- Normally closed contacts with automatic reset functionality
- Precise temperature control with ±5°C operating tolerance
- High-quality materials including silver-plated iron case and premium bimetallic components
- Comprehensive safety certifications including UL, CUL, TUV, and VDE
- Compliant with European ROHS and REACH environmental standards
| Parameter | Specification |
|---|---|
| Electrical Ratings | 250V AC: 3A 125V AC: 6A 24V DC: 6A |
| Contact Resistance | <30mΩ |
| Dielectric Strength | 2KV |
| Operating Temperature | 140±5°C |
| Reset Temperature | 100±15°C |
| Connection Type | Riveting wire with 40mm cables |
| Agency Approvals | CQC, UL, CUL, TUV, VDE |
This thermal protector is ideal for various motor and electrical equipment applications including:
- Air conditioner plastic package motors
- Washing machine and range hood motors
- Series pole motors and fan motors
- Transformers and coils
- Rechargeable batteries and automotive DC motors
- Electric heaters and water pump motors
- Graphene heating pads and curtain motors
The S01 thermal protector features a self-aligning design with conductive housing, insulated contact cap, and spring snap-in disc mechanism. The bimetallic disc responds directly to ambient temperature, snapping to open contacts when the rated switching temperature is reached and automatically resetting when temperatures decrease.
Manufactured under ISO9001:2008 quality systems with TS16949 implementation for automotive applications. The device offers life cycles ranging from 10,000 to 100,000 cycles depending on model and working conditions, with a guaranteed defective rate of 100 ppm.
Custom thermal protectors are available with specific voltage/current ratings, action temperatures, dimensional requirements, and application-specific parameters.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.