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Site Updated October 16, 2016

* * * Sensata > Products > Circuit Breakers > Automotive > EXT200

Automotive Circuit Breakers
EXT 200 Series


Overview Data Sheet (PDF)  

SAE Type 2 (non-cycling) device
Multiple bimetallic resistivities available
Multiple terminal configurations available
Metal encased


The EXT 200 Series of mini remote reset circuit breakers are commonly designed for 12 Volt DC wiring harness protection. The device is ideal for the protection of circuits that may experience momentary overloads and is often chosen as an alternative to fuses, where nuisance replacement can be an inconvenience. The EXT 200 can be mounted in the fuse block or elsewhere within the wiring harness. This bimetallic device is sensitive to both over-current and over-temperature fault conditions.



General Envelope Dimensions, mm (inches)
Nominal dimensions provided for reference only.


CA, CM and CDA, CDM
CA, CM and CDA, CDM

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Thermal Circuit Breakers


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Peerless Electronics Inc.
700 Hicksville Road
Suite 100
Bethpage NY 11714
Phone: 516-594-3500
Phone: 800-285-2121
Fax: 516-593-2179



Trip Curve

Diagram: Approximate effect of ambient temperature on ultimate trip
General Specifications
Nominal Operating Voltage
12 Volts DC
Typical voltage drop at operating current
200 mV max
Current Rating
5 to 35 amps @ 25ºC (in 5 amp increments)
Typical ambient temperature range
-40ºC to 85ºC

These curves are to be used only as a guide in selecting a protector for a particular application. Factors such as distance from the heat source and the method of mounting should be considered in selecting a protector. Final trip times are dependent upon terminal configuration and mounting in the application.

All Sensata Circuit Breakers do not contain any hazardous materials and are 100% in compliance with the Substance of Concern (SoC), ELV and RoHS directives.

The World Depends on Sensors and Controls
The World Depends on Sensors and Controls