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Klixon 5TC Series |
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Aircraft Circuit Breakers |
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About these pages
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Amp Rating |
Max. Voltage Drop* |
20 |
0.15 |
25 |
0.15 |
35 |
0.15 |
50 |
0.15 |
* Maximum voltage drop at nominal rated current. |
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Sensata > Products > Klixon Brand > Circuit Breakers > Aircraft >
Klixon® 5TC series
20 to 50 amp, single–phase, ambient compensated
| Features and Overview |
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Miniature size |
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Light weight |
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Single–phase |
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Ambient compensated |
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Trip–free design |
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Current rating: 20 to 50 amps |
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Coordinated ratings |
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High vibration resistance |
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High interrupting capacity |
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Options include: standard or auxiliary
switch configuration, terminal barriers |
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Typical use: Aircraft, avionics and electronic systems |
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Klixon single–phase TC devices are
the smallest, lightest, high performance aircraft circuit breakers available today. They
represent the state-of-the-art protection of today’s aerospace power systems. Their light
weight and small size make them especially well suited for aircraft, avionics and electronic
systems.
The Klixon trademark has set the standard for aerospace circuit breakers. For a small,
light weight configuration, the TC series offers the endurance and reliability required by
exacting military specifications, and are available in standard current ratings from 1
through 50 amperes.
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Coordination
The single–phase 5TC breaker rating is coordinated so that in the event of a fault of up to 600 amps let–through current any rating will trip before another circuit breaker twice its rating. This results in improved overall equipment performance since only the smallest faulted circuit is interrupted, while larger circuits remain operational.
Ambient Temperature Compensation
The 5TC serves as an ambient compensated circuit breaker permits system designers to specify smaller gauge wire where the circuit breaker and wiring are exposed to different ambient temperatures.
They are especially suited for application where ambient temperature exceeds the 160°F (71°C) maximum of non–ambient compensated thermal circuit breakers. The 5TC series may be applied where operating temperatures are as high as 250°F (121°C), with no derating of the circuit breaker. This eliminates the need for cooling air and allows substantial weight, space and cost savings.
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.
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| Performance Characteristics |
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Vibration |
10G minimum, 80–500 Hz (other vibration levels available) |
Mechanical Shock |
50G |
Acceleration |
10G |
Weight |
Standard device: 53 grams (no hardware), 58 grams (hardware)
Auxiliary device: 55 grams (no hardware), 59 grams (hardware) |
Interrupt Current |
20–50 amps: 4000 amps at 28 VDC
20–50 amps: 2000 amps at 115 VAC, 400 Hz
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Endurance |
2,500 cycles: 115 VAC, 400 Hz inductive
2,500 cycles: 28 VDC inductive
2,500 cycles: 28 VDC resistive
5,000 cycles: Mechanical, no load |
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ASNE |
ASNE0732-005 (our 5TC65 auxiliary device) |
NSA |
NSA93121 (our 5TC50 standard device) |
| 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% |
23°C |
110% |
145% |
2–18 |
0.15–2.5 |
0.045–0.6 |
-54°C |
110% |
165% |
70 seconds max. |
0.15–2.5 |
0.045–0.6 |
70°C |
105% |
145% |
1.5 seconds min. |
0.15–2.5 |
0.045–0.6 |
125°C |
90% |
145% |
1.5 seconds min. |
0.15–2.5 |
0.045–0.6 |
| The most typical device is 20–50 amps. For others, please contact us. |
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5TCX-Y |
Where 5TC is the basic part number, X depicts the style, and –Y designates the applicable amperage rating. For more detailed information, please see spec sheets below. |
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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... |
5TCX |
Device Type |
Spec Sheet |
Coming soon! |
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