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Site Updated September 19, 2017

* * * Sensata > Products > Klixon Brand > Circuit Breakers > Thermal >

Klixon® 7855 Series Thermal Circuit Breakers
175 to 200 Amp Commercial, Ignition Protected


Overview Data Sheet (PDF) Request Pricing or Info

175 - 200 amps
Commercial thermal circuit breaker
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.

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.

Views of 7855 circuit breaker

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Klixon
Thermal Circuit Breakers

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Trip Curve
Approximate Time — Current Characteristics at 77°F (25°C)


Trip Curve Diagram

Solid Lines: 7855-6 and 7855-7



Derating Curve
Approximate Effect of Ambient Temperature on Ultimate Trip


Diagram: Approximate effect of ambient temperature on ultimate trip
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).
The World Depends on Sensors and Controls