SR Products ETL69C-40 Nominal Temperature Rating User Manual

Sr products, llc

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Doc. ETL69C-40-I


Rev. A

Page 1 of 6


SR Products, LLC


Electro Thermal Link

The Electro Thermal Link [ ETL69C-40 ] is a multi-purpose, dual response fusible

link / release device. The fusible link portion functions identically to an ordinary

fusible link. Ambient temperature nearing the rated temperature causes the low

temperature alloy to melt, allowing the link halves to separate.

The ETL69C-40 can also be actuated by an electrical impulse. A 0.2 ampere

minimum trip current applied for a 50 millisecond minimum duration starts an

irreversible chemical reaction. This reaction melts the fusible alloy and causes link

separation in 6 to 10 seconds at standard temperature.

The ETL69C-40 was designed to substantially improve life safety and minimize

property damage by providing both ordinary fusible link response times in the event

of fire along with the capacity to instantaneously respond to any type of fire, smoke,

infrared, light detector (etc.) capable of supplying a short duration current impulse.

The design allows for ETL69C-40 substitution or retrofitting of ordinary fusible

links and other actuators or release devices installed in: dampers; doors; roof

hatches; towers; extinguishing systems, and inert chemical or gas release systems.

An inherent major advantage of the ETL69C-40 over other products is the dually

redundant dormancy – it draws no current and stays inertly in place until actuated,

then functions and separates in seconds. The ETL69C-40 is designed and intended

FOR INDOOR (or sheltered) DRY USE ONLY. The ETL69C-40 is an

Underwriters Laboratories listed device manufactured to exacting quality standards.