Our high-capacity thermal fuses are engineered to provide a critical safety layer for heavy-duty appliances and industrial machinery. Designed to handle significant electrical loads, these non-resettable cutoffs permanently interrupt power when temperatures reach dangerous levels, preventing equipment failure and fire hazards.
We offer two heavy-duty series designed for high-wattage hardware, each available in several precision temperature thresholds:
Perfect for large kitchen appliances, industrial heaters, and commercial coffee systems.
Available Temperatures: 185(C) and 216(C)
Designed for the most demanding environments, including large electric motors and high-output heating elements.
Available Temperatures: 185(C), 216(C), and 230(C)
Reinforced Ceramic Housing: Features a durable ceramic body that provides excellent thermal conductivity and electrical insulation.
Flexible Insulated Leads: Both series come with heat-resistant white insulated wiring, allowing for safer routing within high-temperature enclosures.
Pre-Terminated Ring Connectors: Specifically designed for secure mechanical fastening to terminal blocks or chassis mounting.
High-Current Stability: Built to handle 15A or 20A continuous loads without premature failure or excessive self-heating.
Permanent Cutoff: Once the internal thermal element melts, the circuit remains open indefinitely to ensure the underlying cause of overheating is corrected.
Current Ratings: 15A or 20A.
Voltage Compatibility: Supports standard AC electrical systems up to 250V.
Temperature Tolerance: $\pm5^{\circ}\text$.
Wire Type: High-temperature insulated copper lead wires.
Commercial Kitchens: Protection for deep fryers, industrial ovens, and commercial dishwashers.
HVAC Systems: Safety cutoffs for high-output electric furnace elements and space heaters.
Industrial Tools: Safeguards for high-power compressors, welding equipment, and electric pumps.
Can I use a 20A fuse to replace a 15A fuse?
Technically, yes, because the 20A fuse has a higher current-carrying capacity. However, you must match the temperature rating ($^{\circ}\text$) exactly to maintain the original safety profile of the appliance.
Why do these have ring terminals instead of straight wires?
In high-current applications, screw-down ring terminals provide a much more stable and lower-resistance connection than soldering. This prevents localized heat from building up at the connection point, which could accidentally blow the fuse.
My fuse blew; can I just bypass it?
Never bypass a thermal fuse. If it has blown, it means the appliance reached a temperature that could have caused a fire. Always identify and fix the reason for the overheating (such as a faulty thermostat or blocked fan) before installing a replacement.
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