Klixon® 7277 series is designed for applications that do not require the tighter performance characteristics and approvals of our military circuit breakers. 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 military grade version of this circuit breaker is the Klixon® 7274- 2 series. The 7277 and 7274-2 series circuit breakers are physically and electrically identical, with the exception that the 7277 has wider calibration limits.

Features

Miniature size

Light weight

Trip–free design

Current rating: 0.5 to 20 amps

High vibration resistance

Options include: dust boot (part #14500-1 fits 15/32 bushing, part #14500-5 fits 7/16 bushing), auxiliary switch, terminal hardware, longer push button

Specifications

Vibrations 10G minimum, 50–500 Hz (other vibration levels available) Mechanical Shock 35G Acceleration 10G Weight 28 grams maximum 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

2,500 cycles: 30 VDC inductive

5,000 cycles: 120 VAC, 400 Hz resistive

5,000 cycles: 30 VDC resistive 10,000 cycles: Mechanical, no load