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Home / Electrical / Circuit Breakers / Push-Pull / MS3320 / MS25244 /7274-2-5 Circuit Breakers
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7274-2-5 Circuit Breakers

28 Reviews 4 Answered Questions
$29.50/Each
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Part# 11-08358
MFR Model# 7274-2-5

Overview

7274 series are small, lightweight, low amperage devices that are specifically designed to protect aircraft/aerospace cable and components in airborne vehicles and equipment.

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.
   
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Features

  • Uses minimum space
  • Light weight
  • Trip–free
  • MIL-C-5809 qualified
  • Current rating: 5 amp
  • Low amp
  • High vibration resistance
  • Typical use: Military airborne vehicle and equipment protection

Specifications

  • Amp: 5
  • MS#: MS26574-5
  • 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
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Reviews

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excellent, 5 stars.

Peter F Verified Purchase

Circuit Breaker 7274-2-5
July 4, 2025

The circuit breakers that I ordered will complete the project in the RV 8. Thank you.

Walter S Verified Purchase

Circuit Breaker 7274-2-5
April 22, 2025

As described.

Jonathan W Verified Purchase

Circuit Breaker 7274-2-5
January 6, 2025

Works like a circuit breaker should. Nice simple packaging with all the mounting hardware secured.

Brooks M Verified Purchase

Circuit Breaker 7274-2-5
April 1, 2024

Springdale A Verified Purchase

Circuit Breaker 7274-2-5
January 23, 2024

Everything as it should be.

Jonathan W Verified Purchase

Circuit Breaker 7274-2-5
December 28, 2023

A quality product

William J Verified Purchase

Circuit Breaker 7274-2-5
November 27, 2023

Thiebaud M Verified Purchase

Circuit Breaker 7274-2-5
March 19, 2023

Nice and reliable item !

Bjorn T Verified Purchase

Circuit Breaker 7274-2-5
January 25, 2023

Work

Mike L Verified Purchase

Circuit Breaker 7274-2-5
November 2, 2022

Q&A

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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 the 7274 circuit breakers PMA approved?

The 7274 series Klixon breakers meet MIL-MS26574 spec. They are not FAA PMA approved but the Mil spec allows them to be installed on certified aircraft. MIL-C-5809 qualified.

Q: What are the physical dimensions of this Klixon 7274-2-5 circuit breaker, LxWxH?

The dimensions are 3/4" L x 9/16" W x 2" H.

Q: What is the mounting hole size of the Klixon 7274-2-5 breaker?

The mounting hole should be approximately .445" to fit the 7/16-32 threaded neck to the panel.

Q: what is the screw size for the ring terminal?

6-32

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