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Klixon 7274 Series |
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Aircraft Circuit Breakers |
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See Also |
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About these pages
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Amp Rating |
Max. Voltage Drop* |
1 |
1.10 |
15 |
0.25 |
20 |
0.25 |
25 |
0.25 |
30 |
0.25 |
35 |
0.25 |
* Maximum voltage drop at nominal rated current. |
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Sensata > Products > Klixon Brand > Circuit Breakers > Aircraft >
Klixon® 9TC series
1 amp, 15 to 35 amp, 3–phase, miniature, ambient compensated
| Features and Overview |
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Miniature size |
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Light weight |
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Trip–free design |
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AS58091 qualified |
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Current rating: 1, 15 to 35 amp |
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High vibration resistance |
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High interrupting capacity |
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Protective terminal barriers between each phase |
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Vibration pads improve mounting stability |
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One phase trips all |
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Includes features identical to Klixon 2TC and 3TC series |
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Options include: longer push buttons,
dust boot (part #14500-1 fits 15/32 bushing, part #14500-5 fits 7/16 bushing) |
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Klixon 9TC series circuit breakers provide ambient compensated circuit protection in a lightweight, sub-miniature package size. The three–phase integrally linked design provides overcurrent protection in the event of simultaneous or unbalanced overloads, including short circuit conditions.
Coordination
The 9TC series is compatible with the single–phase 2TC and 3TC. The 9TC is available in ratings in 1 amp and from 15 to 35 amps. Military and various commercial approvals are available on most styles.
Ambient Temperature Compensation
The 9TC serves as an ambient-compensated circuit breaker. This permits system designers to specify smaller gauge wire where the circuit breaker and wiring are exposed to different ambient temperatures.
Trip–Free
The complete line of TC series circuit breakers is trip–free. The circuit breaker cannot be maintained closed during an overload even with the actuator button held closed.
High Short Circuit Capacity
For its miniature size, the 9TC series offers unusually high current interrupting capacity. Overloads up to 2,000 amps at 120 VAC, 400 Hz can be safely interrupted without affecting calibration or operating performance in the standard 9TC.
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| Performance Characteristics |
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Vibration |
10G minimum, 50–500 Hz |
Mechanical Shock |
50G |
Acceleration |
10G |
Weight |
88 grams (without hardware)
110 gram maximum (9TC14) |
Interrupt Current |
1, 15–35 amps: 2,000 amps at 120 VAC, 400 Hz
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Endurance |
2,500 cycles: 120 VAC, 400 Hz inductive
5,000 cycles: 120 VAC, 400 Hz resistive
5,000 cycles: Mechanical, no load |
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European |
European Standards
Most European Aircraft OEMs |
Mil–spec |
MS 14153 (9TC2 device) |
USA |
All U.S. Aircraft OEMs |
| To view qualifications on all Klixon aircraft circuit breakers, see the cross reference chart. |
| Calibration Chart For a Standard Device |
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Temp. |
Minimum Ultimate Trip |
Maximum Ultimate Trip* |
Trip Time in seconds |
200% |
500% |
1000% |
25°C |
110% |
145% |
4-20 |
0.40-2.00 |
0.10-0.53 |
-54°C |
110% |
165% |
6-40 |
0.55-3.50 |
0.15-0.80 |
71°C |
100% |
145% |
3-20 |
0.33-1.70 |
0.08-0.40 |
Depicts the most typical standard commercial device. For others, please contact us.
* Single–phase values apply when other two phases carry 100% of rated current. |
| Drawings and Dimensions For Reference Only |
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9TCX-Y |
9TC |
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Basic part number |
X |
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Style |
Y |
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Amp rating (1, 15, 20, 25, 30, or 35 amps) |
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| Unsure about the number? Don’t risk ordering the wrong part. Please contact us.
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| Spec Sheets For Our Most Popular Devices |
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| Specification sheets contain detailed drawings, amp ratings, characteristics, and more... |
9TCX |
Device Type |
Spec Sheet |
9TC2 |
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9TC14 |
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| For others, please contact us. |
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