•	Ignition protected
Using a bimetal, snap acting disc as the sensing and actuating element, the Klixon® 7855 series thermal circuit breaker provides trouble free over current protection for high current applications. The 7855 Series is available in two configurations:
•	7855-6: Sealed construction, manual reset
•	7855-7: Sealed construction, automatic reset
Applications
•	Main harness protection for heavy trucks, buses, construction equipment, off–road vehicles, and RV’s
•	Electric vehicle battery protection
General Envelope Dimensions Nominal dimensions provided for reference only.

Performance characteristics are based on room temperature (77°F). Consult derating curve at left for ambient temperatures significantly higher or lower than standard room temperature.

Example: At 77°F the device is calibrated to hold at 110% of rated current (1) and trip at 138% of rated current (2). At 140°F, the same device will hold at approximately 92% of rated current (3), and trip at approximately 120% of rated current (4).