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7274-2-20 Circuit Breakers

$41.55/Each
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Part# 11-08362
MFR Model# 7274-2-20

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.


Features

  • Uses minimum space
  • Light weight
  • Trip–free
  • MIL-C-5809 qualified
  • Current rating: 20 amp
  • Low amp
  • High vibration resistance
  • Typical use: Military airborne vehicle and equipment protection

Specifications

  • Amp: 20
  • MS#: MS26574-20
  • 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

Simply the best, from 1 amp on up!

Charles D
October 12, 2020

These breakers work great. But the hold down nut was not machines correctly and was missing all of the threads. Was unable to thread it on and had to rob a nut off of an old breaker from a wrecked airplane. Only one I have ever seen that way

Evan B
May 19, 2017

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.

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