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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
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Site Updated February 16, 2018

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

Klixon® PS Series Thermal Circuit Breakers
2 to 35 Amp, Precision

Overview Data Sheets (PDF):
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2 - 35 amps
Precision thermal circuit breaker
Suitable for harsh conditions

Using a bimetal, snap acting disc as the sensing and actuating element, the Klixon PS series thermal circuit breaker provides trouble-free over-current protection for harsh environments. The PS series is used in applications such as military vehicles and equipment where precise ultimate trip characteristics are required.

Available in three configurations:
PSA: Automatic reset (Data sheet PDF)
PSM: Manual reset (Data sheet PDF)
PSM–N: Manual reset, neck mount (Data sheet PDF)


Military vehicles and other equipment where precise ultimate trip characteristics are required

General Envelope Dimensions
Nominal dimensions provided for reference only.

Views of PSA, PSM, PSM-N circuit breakers

* * *
Thermal Circuit Breakers
Above: PSM–N high amp

Thermal Circuit Breakers
Above: PSA low amp

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

Trip Curve Diagram

Dotted Lines: PSA, PSM, PSM–N series (10 amps and below)
Solid Lines: PSA, PSM, PSM–N series (above 10 amps)

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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