TPEL thermal fuses in the TH66 HOL series permanently open the circuit when the temperature reaches 66°C, protecting the equipment from damage due to overheating. Sold in packs of 5, they are used in transformers, ventilation systems, electric fans, low-power motors, chargers, electronic ballasts, capacitors, and various heating systems.

The HOL (hollow lead) construction is suited to PCB through-hole mounting and in-line wiring. The 66°C trip point is one of the lower thresholds in the TPEL range, making this fuse appropriate for temperature-sensitive equipment where early overtemperature detection is critical.

Key Features

• Rated functioning temperature (TF): 66°C — opens permanently at this temperature
• Fusing-off temperature: 62°C ±2°C
• Holding temperature (TC): 42°C — safe continuous operating temperature
• Maximum temperature limit: 130°C
• Rated voltage: 250V AC
• Rated current: 10A

Product Benefits

• Low 66°C trip point provides early overtemperature protection for temperature-sensitive assemblies
• Non-resettable design gives reliable, irreversible open-circuit action on fault
• 10A current rating is sufficient for low-power motors, chargers, and ballast circuits
• Holding temperature of 42°C allows operation in normally warm equipment without false trips
• Pack of 5 covers immediate replacement needs and maintenance stock

Technical Specifications

• Model: TH66 HOL
• Brand: TPEL
• Rated Functioning Temperature (TF): 66°C
• Fusing-off Temperature: 62°C ±2°C
• Holding Temperature (TC): 42°C
• Maximum Temperature Limit: 130°C
• Rated Voltage: 250V AC
• Rated Current: 10A
• Pack Quantity: 5 pcs

Why You'll Love It

• 66°C trip point is ideal for equipment where overheating must be caught early
• 250V/10A rating is compatible with the majority of low-power appliance protection circuits
• HOL lead format fits standard PCB pads and in-line cable assemblies
• Package includes 5x TPEL Thermal Fuse 250V 10A 66°C-TH66 HOL