Aircraft Spruce Canada
Brantford, ON Canada
Corona, CA | Peachtree City, GA
Chicago, IL | Wasilla, AK
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7274-2-2 Circuit Breakers
MFR Model# 7274-2-2
Overview
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7274 series are small, lightweight, low amperage devices that are specifically designed to protect aircraft/aerospace cable and components in airborne vehicles and equipment. |
Features
- Uses minimum space
- Light weight
- Trip–free
- MIL-C-5809 qualified
- Current rating: 2 amp
- Low amp
- High vibration resistance
- Typical use: Military airborne vehicle and equipment protection
Specifications
- Amp: 2
- MS#: MS26574-2
- Vibration: 10G minimum, 50–500 Hz (other vibration levels available)
- Mechanical Shock: 35G
- Acceleration: 10G
- Weight: 7274-2 (MS 26574): 28 grams maximum; 7274-4 (MS 26574 A): 28 grams maximum; 7274-11 (MS 22073): 33 grams maximum; 7274-69 (MS 22073V): 33 grams; 7274-70 (MS 26474L): 33 grams
- Interrupt Current: 0.50–5 amps: unlimited at 28 VDC; 7.50–15 amps: 2,000 amps at 28 VDC; 0.50–1.50 amps: unlimited at 120 VAC, 400 Hz; 2–5 amps: 800 amps at 120 VAC, 400 Hz; 7.50–20 amps: 500 amps at 120 VAC, 400 Hz
- Endurance: 2,500 cycles: 120 VAC, 400 Hz inductive; 5,000 cycles: 120 VAC, 400 Hz resistive; 2,500 cycles: 30 VDC inductive; 5,000 cycles: 30 VDC resistive; 10,000 cycles: Mechanical, no load
Reviews
Ill be honest — I didnt want to buy this circuit breaker. My old one had been faithfully popping at the worst possible moments for 30 years, and frankly, I respected the chaos it brought to my life. Nothing keeps a pilot sharp like an unexpected electrical gremlin at 5,500 feet over a cloud layer. But my A&P told me to replace it, and you dont argue with your A&P. (They know where your logbook is.) So I ordered the Circuit Breaker 7274-2-2 from Aircraft Spruce. It arrived in a little bag that seemed insultingly small for something that now protects thousands of dollars of avionics. I held it in my palm and thought, Youre in charge now, little buddy. Installation took about 12 minutes, which was disappointing because Id cleared my whole Saturday. Since installing it, it has done absolutely nothing. It just sits there. Protecting things. Silently. No drama. No adventure. My Uavionics AV-30s work every single time now, which is honestly a little boring. Pros: Fits perfectly Does its job without complaining (unlike my co-pilot) Has not once burst into flames Cons: Too reliable. I miss the mystery. Now I have nothing to blame my bad landings on. Would I recommend? Only if you want your electrical system to work correctly, which — after reflection — I suppose you do. 10/10. Fly safe, people.
Verified Purchase
Circuit Breaker 7274-2-2
Klixon 7274s are the brand CB I like best, lightweight and pullable. And they just work!
Verified Purchase
Circuit Breaker 7274-2-2
Verified Purchase
Circuit Breaker 7274-2-2
Good part at a good price. Amazing customer service.
Verified Purchase
Circuit Breaker 7274-2-2
Part needed for AV-30 installation
Verified Purchase
Circuit Breaker 7274-2-2
Appears to work as advertised
Verified Purchase
Circuit Breaker 7274-2-2
Verified Purchase
Circuit Breaker 7274-2-2
Verified Purchase
Circuit Breaker 7274-2-2
Small footprint, fits really well on the panel.
Verified Purchase
Circuit Breaker 7274-2-2
Work
Verified Purchase
Circuit Breaker 7274-2-2
Q&A
Please note, Aircraft Spruce Canada'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 Canada 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.
These are not FAA PMA / TSO Approved but they do meet a Mil spec. Mil spec # MIL-C-5809.
The terminal screws are included.
