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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® 6766–19 Series Thermal Circuit Breakers
35 to 150 Amp, Commercial, Switchable

Overview Data Sheet (PDF) Request Pricing or Info

35 - 150 amps
Commercial thermal circuit breaker
Ignition protected
Meets SAE

The 6766-19 is a manually switchable thermal circuit breaker that is ideally suited for rugged applications. This device is used commonly in applications where a robust, weatherproof switchable breaker is required.


Accessory and equipment protection for heavy trucks, construction equipment, off–road vehicles, and marine equipment
Ignition protected applications

General Envelope Dimensions
Nominal dimensions provided for reference only.

Views of 6766-19 circuit breaker

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Thermal Circuit Breakers
Please contact a distributor for small quantity orders.

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

Trip Curve Diagram

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 100% of rated current (1) and trip at 135% of rated current (2). At 140°F, the same device will hold at approximately 78% of rated current (3), and trip at approximately 115% of rated current (4).
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