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

10G minimum, 50–500 Hz (other vibration levels available)

50G

10G

24 gram maximum (2TC14)

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

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

Trip Time in seconds

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

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

2TC2

Military

2TC14

Commercial

2TC27

Military

2TC49

Military

2TC63

Military