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Klixon 3TC7 Series
 
 
Aircraft Circuit Breakers
 
    ACB Catalog



Klixon
klixon@sensata.com
Phone: 1-508-236-3287
Fax: 1-508-236-1598
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Part numbers
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Site Updated October 16, 2016

* * * Sensata > Products > Klixon Brand > Circuit Breakers > Aircraft >

Klixon® 3TC7 series
Single–phase, non–ambient compensated, high short circuit interrupting capacity



Features and Overview Performance Characteristics
Amps, Volts, MS Number Spec Sheet PDFs
Calibration Chart Trip Curve
Drawings and Dimensions  
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Features and Overview /\ Top

Miniature size
Light weight
Trip–free design
Current rating: 5 to 35 amps
AS58091 qualified (MS25244)
High vibration resistance
High interrupt capacity: interrupting a 6,000A circuit at 30VDC, or 3,500A circuit at 120VAC, 400 Hz
Typical use: Aircraft, avionics and electrical systems
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Klixon
Aircraft Circuit Breakers

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.



Performance Characteristics /\ Top
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
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 /\ Top
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%
- - -
- - -
- - -
71°C
70%
114%
- - -
- - -
- - -
For others, please contact us.


Amps, Volts, MS Cross Reference /\ Top
Klixon Part
Mil–spec Number
Amp
Voltage Drop
3TC7-5
MS 25244-5
5
0.25
3TC7-7½
MS 25244-7½
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


Trip Curve /\ Top

Approximate Time-Current Curves


Drawings and Dimensions For Reference Only /\ Top
3TC7 Diagram 3TC7 Diagram
3TC7 Diagram


Spec Sheets For Our Most Popular Devices /\ Top
Specification sheets contain detailed drawings, amp ratings, characteristics, and more...
3TC7X
Device Type
Spec Sheet
3TC7
MS25244
The World Depends on Sensors and Controls