*
*
Klixon 2TC Series
 
 
Klixon 2TC49 Series
 
 
Aircraft Circuit Breakers
 
    ACB Catalog



Klixon
klixon@sensata.com
Phone: 1-508-236-3287
Fax: 1-508-236-1598
more »
Part numbers
Don’t risk ordering the wrong part. Contact us or a distributor.



About these pages
Sensata Technologies is in the process of updating our web pages. Please bear with us during this process. If you have questions or comments, we’d like to hear from you. Please see contact us.



2TC Options /\ Top

Variable frequency
Longer push buttons
High vibration
Random vibration
Metric mounting thread
Metric terminal thread
Dust boot (part #14500-1 fits 15/32 bushing, part #14500-5 fits 7/16 bushing)
Auxiliary switch (male and female contacts available)
Terminal barriers
Terminal hardware

For others, please contact us.



Voltage Drop /\ Top
Amp Rating
Max. Voltage Drop*
1
1.10
2
0.70
0.50
3
0.40
4
0.45
5
0.35
0.30
10
0.28
15
0.25
20
0.25
25
0.20
* Maximum voltage drop at nominal rated current.

Site Updated September 19, 2017

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

Klixon® 2TC series
1–25 amp, single–phase, miniature ambient compensated



Features and Overview Part Numbering
Amps and Voltage Performance Characteristics
Calibration Chart Spec Sheet PDFs
Options Available Trip Curve
Ask a question » Contacts and distributors »




Features and Overview /\ Top

Miniature size
Light weight
Trip–free design
Current ratings (1 to 25 amps)
High vibration resistance
High interrupting capacity
 
Coordinated ratings
AS58091 qualified (Also: Military Approvals, FAA PMA)
Typical end use: Aircraft power distribution systems
* * *



Klixon
Klixon 2TC series aircraft circuit breakers

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 and the TC series offers the endurance and reliability required by exacting military specifications.

Coordination
The 2TC series breaker ratings are coordinated so any rating will trip before another rating twice its capacity in the event of a fault. of up to 6,000 amps let–thru current. This results in improved overall equipment performance since only the smallest faulted circuit is interrupted, while larger circuits remain operational.

Ambient Temperature Compensation
Ambient compensated circuit breakers let designers 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 TC 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.

High Short Circuit Capacity
For its miniature size, the 2TC series offers unusually high current interrupting capacity. Overloads can be safely interrupted without affecting calibration or operating performance in the standard 2TC series for:
Overloads up to 6,000 amps at 28 VDC
Overloads of 2,000–3,500 amps at 120 VAC, 400 Hz


Performance Characteristics /\ Top
Vibration
10G minimum, 50–500 Hz (other vibration levels available)
Mechanical Shock
50G
Acceleration
10G
Weight
24 gram maximum (2TC14)
Interrupt Current
1–20 amps: 6,000 amps at 28 VDC
25 amps: 1,625 amps at 28 VDC
1–15 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
Endurance
2,500 cycles: 120 VAC, 400 Hz inductive
5,000 cycles: 120 VAC, 400 Hz resistive
2,500 cycles: 30 VDC inductive
5,000 cycles: 30 VDC resistive
10,000 cycles: Mechanical, no load


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%
4–16
0.40–1.60
0.10–0.40
-54°C
115%
165%
7–35
0.60–3.00
0.15–0.70
121°C
85%
145%
2–13
0.25–1.00
0.06–0.25
For others, please contact us.


Trip Curve /\ Top

Approximate Time-Current Curves


Part Numbering /\ Top
2TCX-Y
Where 2TCX is the basic part number and –Y is the amp rating. For more detailed information, please see spec sheets below.


Spec Sheets For Our Most Popular Devices /\ Top
Specification sheets contain detailed drawings, amp ratings, characteristics, and more...
2TCX
Device Type
Spec Sheet
2TC2
Military
2TC14
Commercial
2TC27
Military
2TC49
Military
2TC63
Military
For others, please contact us.
The World Depends on Sensors and Controls