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Klixon 3TC7 Series |
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Aircraft Circuit Breakers |
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Sensata > Products > Klixon Brand > Circuit Breakers > Aircraft >
Klixon® 3TC7 series
Single–phase, non–ambient compensated, high short circuit interrupting capacity
| 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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Current rating: 5 to 35 amps |
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AS58091 qualified (MS25244) |
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High vibration resistance |
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High interrupt capacity: interrupting a 6,000A circuit at 30VDC, or 3,500A circuit at 120VAC, 400 Hz |
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Typical use: Aircraft, avionics and electrical systems |
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The Klixon 3TC7 style circuit breaker is a lightweight, high performance, non–ambient temperature compensated circuit breaker. The series features a trip–free design that prevents the circuit breaker from being closed manually on overloads.
The Klixon trademark continues to set the standard for lightweight configurations and offers the endurance and reliability required by exacting military specifications.
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| Performance Characteristics |
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Vibration |
10G |
Mechanical Shock |
30G at peak |
Acceleration |
10G |
Weight |
38.9g |
Interrupt Capacity |
1–20 amps: 6,000 amps at 28 VDC
25 amps: 1,625 amps at 28 VDC
3–15 amps: 2,500 amps at 120 VAC, 400 Hz
20 amps: 2,000 amps at 120 VAC, 400 Hz
25 amps: 1,800 amps at 120 VAC, 400 Hz
15–35 amps: 2,000 amps at 120 VAC, 400 Hz
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Endurance |
2,500 cycles: 120VAC, 400 Hz inductive
5,000 cycles: 120VAC, 400 Hz resistive
2,500 cycles: 30VDC, 400 Hz inductive
5,000 cycles: 30VDC, 400 Hz resistive
5,000 cycles: Mechanical, no load |
Operating Altitude |
65,000 ft |
| 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 |
115% |
138% |
15-55 |
2–7 |
1–3.5 |
-40°C |
156% |
178% |
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71°C |
70% |
114% |
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| For others, please contact us. |
| Amps, Volts, MS Cross Reference |
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Klixon Part |
Mil–spec Number |
Amp |
Voltage Drop |
3TC7-5 |
MS 25244-5 |
5 |
0.25 |
3TC7-7½ |
MS 25244-7½ |
7½ |
0.25 |
3TC7-10 |
MS 25244-10 |
10 |
0.25 |
3TC7-15 |
MS 25244-15 |
15 |
0.25 |
3TC7-20 |
MS 25244-20 |
20 |
0.25 |
3TC7-25 |
MS 25244-25 |
25 |
0.25 |
3TC7-30 |
MS 25244-30 |
30 |
0.25 |
3TC7-35 |
MS 25244-35 |
35 |
0.25 |
| Drawings and Dimensions For Reference Only |
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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... |
3TC7X |
Device Type |
Spec Sheet |
3TC7 |
MS25244 |
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