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7274 Series

MS22073, MS22073V, MS26574, MS26574A, MS26574L

Home Products Circuit Breakers Aircraft Circuit Breakers 7274 Series
General
Features
Specifications
General
  • Single–phase
  • 0.5–20 amps
  • 115VAC 400Hz, 28VDC
  • Non–temperature compensated
7274

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

The commercial grade version of this circuit breaker is the Klixon 7277 series. The 7277 and 7274-2 series circuit breakers are physically and electrically identical, with the exception that the 7277 has wider calibration limits. Trip–Free
The 7274 features a trip–free, indicating reset button and is available in standard ratings from ½ to 20 amps.

Features
  • Uses minimum space
  • Light weight
  • Trip–free
  • MIL-C-5809 qualified
  • Current rating: ½ to 20 amp
  • Low amp
  • High vibration resistance
  • Options: Long push button, dust boot (part #14500-1 fits 15/32 bushing, part #14500-5 fits 7/16 bushing), auxiliary switch, waterproof panel seal
  • Typical use: Military airborne vehicle and equipment protection
Specifications
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

DEVICE APPLICATION APPROVAL ACTUATOR RATING (Amp) REMARKS
2TC, 3TC Aircraft power distribution MS 3320, MS 14105 Button 1-35 Subminiature, ambient compensated 1 pole, auxiliary switch available.
5TC Aircraft, avionics, and electrical systems - Button 20-50 Ambient compensated
6TC, 9TC Aircraft power distribution MS 14154, MS 14153 Button 1-35 Subminiature, ambient compensated, 3 pole
2TC49 Aircraft power distribution M5809/1 Button 2.5-15 Dual Safety 2TC
3TC7 Aircraft, avionics, and electrical systems MS 25244 Button 5-35 Lightweight, high performance, non-ambient temperature, compensated
6752-12, 6752-100, 6752-305 Aircraft power distribution, ground support MS 24571, MS 25361 Button 2.5-100 1 Pole – 6752-12, 1 Pole – 6752-100, 3 Pole – 6752-305
7274 Aircraft power distribution, Avionics, ground support, missile systems MS 26574, MS 22073 Button 0.5-20 Quick acting, subminiature, auxiliary switch available
7277 Protection of wire, motors, solenoids, transformers in electronics - Button 0.5-20 Wide calibration version of 7274
7270, 7271 Aircraft power distribution MS 24509, MS 24510 Toggle, Button 3-35 Toggle or push button
20TC2 Combination circuit switching & protection, light aircraft, electronics, vehicles - Rocker 3-35 Rocker switch type
3SB Commercial and military simulators Button - Push button