Commercial Breakers:
    Circuit Breaker
1–35 Amp
2EP Series
    Circuit Breaker
2–40 Amp
C Series
    Circuit Breaker
12.5–60 Amp
7851, 7854
    Circuit Breakers
35–150 Amp
F Series
    Circuit Breakers
35–150 Amp
    Circuit Breaker
35–150 Amp
S Series
    Circuit Breaker
Precision Breakers:
    Circuit Breaker
2–35 Amp
PS series
    Circuit Breaker
2–40 Amp
Small Frame P
    Circuit Breakers
    Circuit Breaker
35–150 Amp
Large Frame P
  Contacts / Distributors

Site Updated February 16, 2018

* * * 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


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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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).
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