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| Description | PN | Price | Buy |
|---|---|---|---|
| 7277-5-1 Circuit Breaker | 7277-5-1 | $39.85 | |
| 7277 Series Circuit Breaker 7277-5-2 2 Amp | 7277-5-2 | $43.85 | |
| 7277-5-3 Circuit Breaker | 7277-5-3 | $41.65 | |
| Circuit Breaker 7277-5-4 | 7277-5-4 | $49.75 | |
| 7277 Series Circuit Breaker 7277-5-5 5 Amp | 7277-5-5 | $39.50 | |
| Circuit Breaker 7277-5-7.5 | 7277-5-7.5 | $41.65 | |
| 7277-5-10 Circuit Breaker | 7277-5-10 | $42.85 | |
| 7277 Series Circuit Breaker 7277-5-15 15 Amp | 7277-5-15 | $48.90 | |
| 7277 Series Circuit Breaker 7277-1-1 1 Amp | 7277-1-1 | $54.75 | |
| 7277 Series Circuit Breaker 7277-1-2 2 Amp | 7277-1-2 | $54.75 | |
| 7277 Series Circuit Breaker 7277-1-3 3 Amp | 7277-1-3 | $54.75 | |
| 7277 Series Circuit Breaker 7277-1-4 4 Amp | 7277-1-4 | $62.85 | |
| Circuit Breaker 7277-1-7.5 | 7277-1-7.5 | $54.75 | |
| 7277 Series Circuit Breaker 7277-1-10 10 Amp | 7277-1-10 | $54.75 | |
| 7277 Series Circuit Breaker 7277-1-15 15 Amp | 7277-1-15 | $54.75 | |
| Circuit Breaker 7277-2-1/2 | 7277-2-1/2 | $138.95 | |
| Circuit Breaker 7277-2-3/4 | 7277-2-3/4 | $25.50 | |
| 7277 Series Circuit Breaker 7277-2-1 1 Amp | 7277-2-1 | $25.50 | |
| Circuit Breaker 7277-2-1-1/2 | 7277-2-1.5 | $41.85 | |
| 7277 Series Circuit Breaker 7277-2-2 2 Amp | 7277-2-2 | $26.50 | |
| Circuit Breaker 7277-2-2.5 | 7277-2-2-1/2 | $27.50 | |
| 7277 Series Circuit Breaker 7277-2-3 3 Amp | 7277-2-3 | $25.50 | |
| 7277 Series Circuit Breaker 7277-2-4 4 Amp | 7277-2-4 | $24.70 | |
| 7277-2-5 Circuit Breaker | 7277-2-5 | $27.50 | |
| Circuit Breaker 7277-2-7.5 | 7277-2-7-1/2 | $27.50 | |
| 7277-2-10 Circuit Breaker | 7277-2-10 | $26.50 | |
| 7277-2-15 Circuit Breaker | 7277-2-15 | $27.50 | |
| 7277-2-20 Circuit Breaker | 7277-2-20 | $27.50 |
Overview
|
The 7277 series circuit breaker is physically and electrically identical to the 7274-2 style circuit breaker, with the exception that the 7277 series has wider calibration limits.
Originally developed as an alternative to slow blow fuses, the trip free 7277 is used extensively as primary electrical circuit protection on general aviation aircraft. The wider calibration limits of the 7277 has also resulted in applications including protection for data processing and telecommunications equipment, computers, flight simulators, construction, material handling and other industrial,electronic equipment. For use on trainer / simulator applications where all breakers are operated on low ampere control current, different ampere rating inserts (amp ratings on top of push button) can be ordered.
• Light weight • Inexpensive • Auxiliary switch • Longer push buttons |
 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. |
Features
- FEATURES: The 7277 series is designed for applications that do not require the tighter performance characteristics and approvals of our military circuit breakers.
• Small size
• Light Weight
• Inexpensive Auxiliary switch 7277-1 Only
• Longer Push Buttons 7277-5 OnlyTemp. CMin Ult TripMax Ult TripTrip Time - Seconds+25110%150%200%500%1000%2-35.15-1.75.028-.8
*Performance characteristics and dimensions are equivalent to 7274 (Calibration: 1/2 - 20 amps*)
Documents
- 7277-1 Specifications (PDF)
- 7277-2 Specifications (PDF)
- 7277-5 Specifications (PDF)
Dimensions
Reviews
As described. Works fine
Verified Purchase
7277-2-20 Circuit Breaker
As described. Works fine
Verified Purchase
7277-2-5 Circuit Breaker
As described. Works fine
Verified Purchase
7277 Series Circuit Breaker 7277-2-3 3 Amp
40 bucks ea!
Verified Purchase
7277 Series Circuit Breaker 7277-5-5 5 Amp
40 bucks ea!
Verified Purchase
7277-5-10 Circuit Breaker
What I like about these breakers is the way the termination tabs are configured. They dont protrude out like a lot of other breakers. It keeps wiring tight and it looks good installed. The breakers are tiny and lightweight. Can fit a lot of them into s small area.
Verified Purchase
7277 Series Circuit Breaker 7277-5-5 5 Amp
These are great circuit breakers. The small form factor makes them easy to tuck in just about anywhere. The switch is solid and looks good in a panel. Highly recommended.
Verified Purchase
7277-5-10 Circuit Breaker
Verified Purchase
7277 Series Circuit Breaker 7277-5-5 5 Amp
Verified Purchase
Circuit Breaker 7277-5-7.5
Verified Purchase
7277-5-3 Circuit Breaker
Q&A
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.
No, they are not FAA PMA'd or TSO'd.
The first number following 7277 is a type designator. -1 indicates auxilary (not for primary use) and the -5 has a longer push button than the standard -2.
Per the manufacturer the mounting hole should be 0.445 in diameter and the smaller hole should be 0.125
The 7277-1 has an Aux. circuit option and the 7277-2 does not.
Yes, Klixon offers a 1/2 amp breaker which would be a special order, please contact our avionics department to place the order.
These are screw type terminals.
The terminals have 6-32 X 3/16" long screws.
We have added the drawing to the Dimensions tab of the web page for review.
These circuit breakers do not have FAA Approval on their own. They were commonly installed as OEM breakers on many production aircraft, and thus might be approved under the airframe approval as replacement parts. Please confirm in your aircraft parts manual and with your A&P to ensure these can be legally installed in your aircraft.
We do not have any data to support using this circuit breakers as a switch.
