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 Klixon - Texas Instruments 

Aircraft Circuit Breakers

Single Phase, Non-Compensated

Picture of 7274

Section #1  

Klixon 7274-2-xx  ~  7274-4-xx

TI Number

 MS Number   TI Number MS Number
7274-2-½ MS 26574-½ 7274-4-½ MS 26574-½A
7274-2-¾ MS 26574-¾ 7274-4-¾ MS 26574-¾A
7274-2-1 MS 26574-1 7274-4-1 MS 26574-1A
7274-2-1½ MS 26574-1½ 7274-4-1½ MS 26574-1½A
7274-2-2 MS 26574-2 7274-4-2 MS 26574-2A
7274-2-2½ MS 26574-2½ 7274-4-2½ MS 26574-2½A
7274-2-3 MS 26574-3 7274-4-3 MS 26574-3A
7274-2-4 MS 26574-4 7274-4-4 MS 26574-4A
7274-2-5 MS 26574-5 7274-4-5 MS 26574-5A
7274-2-7 ½   MS 26574-7½ 7274-4-7 ½   MS 26574-7½A
7274-2-10 MS 26574-10 7274-4-10 MS 26574-10A
7274-2-15 MS 26574-15  7274-4-15 n/a
7274-2-20 MS 26574-20  7274-4-20 n/a
         

Section #2

Klixon 7274-11-xx  ~  7274-69xx  ~  7274-70-xx

TI Number MS Number   TI Number MS Number   TI Number MS Number
7274-11-½ MS 22073-½ 7274-69-½ MS 22073-½V 7274-70-½ MS 26574-½L
7274-11-¾ MS 22073-¾ 7274-69-¾ MS 22073-¾V 7274-70-¾ MS 26574-¾L
7274-11-1 MS 22073-1 7274-69-1 MS 22073-1V 7274-70-1 MS 26574-1L
7274-11-1½ MS 22073-1½ 7274-69-1½ MS 22073-1½V 7274-70-1½ MS 26574-1½L
7274-11-2 MS 22073-2 7274-69-2 MS 22073-2V 7274-70-2 MS 26574-2L
7274-11-2½ MS 22073-2½ 7274-69-2½ MS 22073-2½V 7274-70-2½ MS 26574-2½L
7274-11-3 MS 22073-3 7274-69-3 MS 22073-3V 7274-70-3 MS 26574-3L
7274-11-4 MS 22073-4 7274-69-4 MS 22073-4V 7274-70-4 MS 26574-4L
7274-11-5 MS 22073-5 7274-69-5 MS 22073-5V 7274-70-5 MS 26574-5L
7274-11-7 ½   MS 22073-7½ 7274-69-7 ½   MS 22073-7½V 7274-70-7 ½   MS 26574-7½L
7274-11-10 MS 22073-10 7274-69-10 MS 22073-10V 7274-70-10 MS 26574-10L
7274-11-15 MS 22073-15 7274-69-15 n/a 7274-70-15 n/a
7274-11-20 MS 22073-20 7274-69-20 n/a 7274-70-20 n/a

Section #3 

Klixon 7274-36-xx 
 P/N Amp
7274-36-2 2
7274-36-5 5
7274-36-7.5 7.5
7274-36-10 10
   
 

Features

Overview
The 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 7274 series features a trip-free, indicating-type reset button. They are available in standard ratings from ½ to 20 amps.

Options

Calibration: 1-20 Amps (Typical*)
Temp
°C		 Min. Ult.
Trip		 Max. Ult.
Trip		 Trip Time - Seconds
200% 500% 1000%
+25 115% 150% 2 - 20 .16 - 1.2 .046-.80
-55 135% 180% - - -
+71 90% 130% - - -
*The above calibration chart is representative of a standard commercial device. TI offers specific variants with similar performance dependant on military or customer specifications.
 

Performance
Vibration*................. 10 G minimum, 50-500 Hz
Mechanical Shock..... 35 G
Acceleration.............. 10 G
Weight...................... 7274-2 - 28 grams
7274-2-5 - 19.8 grams
7274-4 - 28 grams
7274-11 - 33 grams
7274-11-5 - 24.7 grams
7274-69 - 33 grams
7274-70 - 33 grams
*Other vibration levels available

 

Interrupting Capacity
   ½ - 5 amps Unlimited amps at 28 VDC
   7½ - 15 amps 2000 amps at 28 VDC
   ½ - 1½ amps Unlimited amps at 120 VAC, 400 Hz
   2 - 5 amps 800 amps at 120 VAC, 400 Hz
   7½ - 20 amps 500 amps at 120 VAC. 400 Hz
Endurance
   2500 cycles 120 VAC. 400 Hz, Inductive
   5000 cycles 120 VAC. 400 Hz, Resistive
   2500 cycles 30 VDC, Inductive
   5000 cycles 30 VDC, Resistive
10,000 cycles   Mechanical, No Load

 

Amp    Voltage                Amp    Voltage
Rating    Drop (max)*       Rating    Drop (max)*
½ 2.00       4 0.45
¾ 1.45       5 0.35
1 1.10       7 ½ 0.30
1½ 0.75       10 0.28
2 0.75       15 0.25
2½ 0.70       20 0.25
3 0.55          
*Max voltage drop at nominal rated current.

Click To Enlarge Dimensional Specs

Click To Enlarge Dimensional Specs

Click To Enlarge Time Curve Specs

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