Klixon 7274 series are small, lightweight, low amperage devices that are specifically designed to protect aircraft/aerospace cable and components in airborne vehicles and equipment.
The commercial grade version of this circuit breaker is the Klixon 7277 series. The 7277 and 7274-2 series circuit breakers are physically and electrically identical, with the exception that the 7277 has wider calibration limits.
Trip–Free The 7274 features a trip–free, indicating reset button and is available in standard ratings from ˝ to 20 amps.
Wiping Action A "wiping action" contact design assures low voltage drop, faster trip time and high reliability in low voltage applications. They are available in standard ratings from ˝ to 20 amps.
Water Resistant Panel A water resistant panel seal designed to fit over the push button actuator is available for applications that require this type of protection.
Uses minimum space
Current rating: 2 amp
High vibration resistance
Typical use: Military airborne vehicle and equipment protection
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
Q: Are these Klixon 7274-2 circuit breakers FAA PMA and TSO approved for certified airplanes?
These are not FAA PMA / TSO Approved but they do meet a Mil spec. Mil spec # MIL-C-5809.