SEKI ST-30
- Snap Action
- Ultra-fast thermal response
- Automatic reset type
- Made of insulated heat-resistant resin
- Dust-proof and moisture-proof enclosed type
- Custom wires available
IP Rating: IP45
(Dust protection: Level 4, Water protection: Level 5)
Application
Electric motors, fluorescent lamp ballasts, LED lighting, power supplies, battery chargers, transformers, coils, heating pads, and various other office equipment.
Temperature Tolerance
Marked temperature ±5℃
Heat Resistance
Operating temperature ±50°C continuous; 200°C for 1 minute
Contact Rating
Minimum current: 100mA / repetitive
Current: 30A per cycle
Setting Temperature (No Load)
50℃~150℃ (5℃ step interval)
ON-OFF Temperature Differential (Typical)
30±15K
Electrical Rating (Resistive Load)
5A/24V DC 10,000 cycles
5A/250V AC 10,000 cycles
Safety Certifications
UL/cUL, VDE, CQC, KC, TUV






















