Thermal Fuse
Features：With strong compact structures,high Insulation resistance and quickly heated advantages can be quickly action.When the products work under abnormal or can't be reset,can soon cut off the power.
Structure and Dimensions
Under normal operating temp., the solid thermal pellet keeps the isolated lead connected to the sliding contact. When the Thermal-Link senses abnormal heat and temp. reaches the predetermined fusing temp., thermal pellet melts and the sliding contact separates from the isolated lead with the assistance of trip spring, thereby the circuit is disconnected.
Main Material List
序号 NO | 零件名 Part Name | 材质 Materials | 序号 NO | 零件名 Part Name | 材质 Materials |
1 | 触点线 Isolated Lead | 镀银铜线 Silvered Copper Wire | 6 | 圆片Disc | 铜合金 Copper Alloy |
2 | 封口树脂 Sealing Resin | 环氧树脂 Epoxy Resin |
7 | 鼓簧 Compression Spring | 不锈钢 Stainless Steel |
3 | 瓷珠 Ceramic Bushing | 氧化铝 Aluminum Oxide | 8 | 感温体 Thermal Pellet | 有机物 Organic Matter |
4 | 直簧 Trip Spring | 不锈钢 Stainless Steel | 9 | 金属外壳 Metal Case | 黄铜镀银 Silver Plating On Brass |
5 | 可动电极 Sliding Contact | 银铜带 Silver Copper Strip | 10 | 尾线 Case Lead | 镀锡铜线 Tinned Copper Wire |
Dimensions (mm)
L | L | L | D | d |
65 ± 3 | （ 14） | 35 ± 2 | φ4.0 ± 0.2 | φ1.0 ± 0.1 |
Specifications
We sourced the RT310 thermal fuse for a batch of high-temperature appliances, and the performance has been reliable so far. What stood out to us was the fast response time once the rated temperature is reached, which is critical for safety protection. The compact size also made installation easier in tight spaces. Build quality looks solid, leads are cleanly finished, and consistency across the shipment was good. We also appreciated the supplier’s quick communication on technical specs. If you need a dependable one-shot thermal cutoff for 310°C applications, this is a practical option.
