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KLIXON 7277 CIRCUIT BREAKERS

From $20.75 to $109.75
Description PN Price Buy
KLIXON CIRCUT BREAKER 7277-5-1 7277-5-1 $34.85
Quantity
KLIXON CIRCUIT BREAKER 7277-5-2 7277-5-2 $34.85
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KLIXON CIRCUIT BREAKER 7277-5-3 7277-5-3 $34.85
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KLIXON CIRCUIT BREAKER 7277-5-4 7277-5-4 $34.85
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KLIXON CIRCUIT BREAKER 7277-5-5 7277-5-5 $34.85
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KLIXON CIRCUIT BREAKER 7277-5-7.5 7277-5-7.5 $34.85
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KLIXON CIRCUIT BREAKER 7277-5-10 7277-5-10 $34.85
Quantity
KLIXON CIRCUIT BREAKER 7277-5-15 7277-5-15 $34.85
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KLIXON CIRCUIT BREAKER 7277-1-1 7277-1-1 $35.90
Quantity
KLIXON CIRCUIT BREAKER 7277-1-2 7277-1-2 $36.50
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KLIXON CIRCUIT BREAKER 7277-1-3 7277-1-3 $36.50
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KLIXON CIRCUIT BREAKER 7277-1 7277-1-4 $42.55
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KLIXON CIRCUIT BREAKER 7277-1-7.5 7277-1-7.5 $36.50
Quantity
KLIXON CIRCUIT BREAKER 7277-1-10 7277-1-10 $36.50
Quantity
KLIXON CIRCUIT BREAKER 7277-1-15 7277-1-15 $35.90
Quantity
KLIXON CIRCUIT BREAKER 7277-2-1/2 7277-2-1/2 $109.75
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KLIXON CIRCUIT BREAKER 7277-2-3/4 7277-2-3/4 $20.75
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KLIXON CIRCUIT BREAKER 7277-2-1 7277-2-1 $20.75
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KLIXON CIRCUIT BREAKER 7277-2-1-1/2 7277-2-1.5 $20.75
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KLIXON CIRCUIT BREAKER 7277-2-2 7277-2-2 $20.75
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KLIXON CIRCUIT BREAKER 7277-2-2.5 7277-2-2-1/2 $20.75
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KLIXON CIRCUIT BREAKER 7277-2-3 7277-2-3 $20.75
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KLIXON 7277 SERIES CIRCUIT BREAKER 7277-2-4 4 AMP 7277-2-4 $20.75
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KLIXON CIRCUIT BREAKER 7277-2-5 7277-2-5 $20.75
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KLIXON CIRCUIT BREAKER 7277-2-7-1/2 7277-2-7-1/2 $20.75
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KLIXON CIRCUIT BREAKER 7277-2-10 7277-2-10 $20.75
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KLIXON CIRCUIT BREAKER 7277-2-15 7277-2-15 $20.75
Quantity
KLIXON CIRCUIT BREAKER 7277-2-20 7277-2-20 $20.75
Quantity
Subtotal $0.00
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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.

    Small size
    Light weight
    Inexpensive
    Auxiliary switch
    Longer push buttons

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 Only
    Temp. C
    Min Ult Trip
    Max Ult Trip
    Trip Time - Seconds
    +25
    110%
    150%
    200%
    500%
    1000%
    2-35
    .15-1.75
    .028-.8

    *Performance characteristics and dimensions are equivalent to 7274 (Calibration: 1/2 - 20 amps*)

Dimensions

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Reviews

Worked fine. BTW-I lost the nut. Aircraft Spruce is working with me to get replacement hardware. Other vendors sell KLIXON hardware kits but only ship via UPS. Might as well just by another CB from aircraft spruce

John N
April 23, 2019

This one is not installed yet but an identical part ordered previously is installed an appears to be functioning perfectly. AC Sprucesâs ordering process is so easy I tend to place orders almost impulsively as items are needed rather than waiting to place a combination order containing several things.

Craig N
January 28, 2019

Rochelle A
October 22, 2018

Great product worked for my installation. Circuit breakers are small and compact.

Daniel Z
September 15, 2018

Great compact breakers.

Jeff P
February 10, 2018

As advertised, quick delivery

James B
December 7, 2017

I have used dozens and never a problem

Stephen
February 27, 2017

Q&A

Q: Are the Klixon 7277 series circuit brakers FAA PMA'd and TSO'd?

No, they are not FAA PMA'd or TSO'd.

Q: The 7277 series part numbers have the format 7277-X-Y The 'Y' is obviously the current capacity in Amps. What is is the 'X'?

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.

Q: What is the hole size required for the Klixon 7277 circuit breakers?

Per the manufacturer the mounting hole should be 0.445 in diameter and the smaller hole should be 0.125

Q: What is the difference between the 7277-1-* and the 7277-2-* breaker?

The 7277-1 has an Aux. circuit option and the 7277-2 does not.

Q: Does Klixon offer a 1/2 amp breaker in the 7277 version? Any type designator.

Yes, Klixon offers a 1/2 amp breaker which would be a special order, please contact our avionics department to place the order.

Q: Screw type or spade type terminals?

These are screw type terminals.

Q: What size screw is used for the terminals on the 7277 Klixon breakers?

The terminals have 6-32 X 3/16" long screws.

Q: What are the mounting dimensions of the Klixon 7277-5 series circuit breakers?

We have added the drawing to the Dimensions tab of the web page for review.

Q: Are these circuit breakers (7277) approved for certified aircraft?

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.

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