DiversiTech HFL-4257 TC Fusible Link 257°F, Pack of 4

Description

DiversiTech HFL-4257 TC Fusible Link — 257°F, Pack of 4

The DiversiTech HFL-4257 is a thermal cutout (TC) fusible link engineered to provide reliable, passive overheat protection in HVAC and related heating systems. Designed to open at a precise 257°F (125°C) trip temperature, this fusible link acts as a critical safety device — interrupting a circuit or triggering a damper closure the moment temperatures exceed safe operating limits. Each pack contains four (4) links, making it an economical choice for service technicians and contractors who need reliable spares on hand.

Key Features

• Thermal cutout (TC) fusible link rated at 257°F (125°C) trip temperature
• Provides passive, automatic overheat protection — no power required to activate
• Ideal for use in furnaces, duct systems, heat exchangers, and fire damper applications
• Single-use safety device; replaces easily after activation
• Convenient pack of 4 for cost-effective stocking and service calls
• Manufactured by DiversiTech, a trusted name in HVAC components and accessories

Application

Fusible links are commonly installed in HVAC ductwork, fire dampers, and heating equipment to prevent damage or fire hazards caused by excessive temperatures. When the ambient temperature at the link’s location reaches 257°F, the link melts and separates, triggering the connected safety mechanism. This makes the HFL-4257 an essential component in any preventive maintenance or system safety strategy.

Product Details

• Brand: DiversiTech
• Part Number: HFL-4257
• Trip Temperature: 257°F
• Type: Thermal Cutout (TC) Fusible Link
• Pack Quantity: 4