|
Klixon - Texas Instruments
Aircraft Circuit Breakers
Single Phase, Ambient Compensated

| Section #1- Klixon 2TC2 | ||
|---|---|---|
| P/N | MS Number | Amp |
| 2TC2-1 | MS3320-1 | 1 |
| 2TC2-2 | MS3320-2 | 2 |
| 2TC2-2.5 | MS3320-2 1/2 | 2.5 |
| 2TC2-3 | MS3320-3 | 3 |
| 2TC2-4 | MS3320-4 | 4 |
| 2TC2-5 | MS3320-5 | 5 |
| 2TC2-7.5 | MS3320-7 1/2 | 7.5 |
| 2TC2-10 | MS3320-10 | 10 |
| 2TC2-15 | MS3320-15 | 15 |
| 2TC2-20 | MS3320-20 | 20 |
| 2TC2-25 | MS3320-25 | 25 |
Features
Miniature Size - Light Weight
- Trip Free - MIL-C-5809 Qualified - Current Ratings (1 to 25 Amps)
- High Vibration Resistance -
High Interrupting Capacity
Overview
Klixon® single-phase TC devices are the smallest,
lightest, high performance aircraft circuit breakers available today. They
represent the "state-of-the-art" for protection of today's aerospace
power systems. Their lightweight 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, lightweight configuration, the TC series offers the endurance and reliability required by exacting military specifications, and are available in standard current ratings from 1 through 35 amperes.
Coordination
The single phase 2TC and 3TC, and three phase 6TC and 9TC breaker
ratings are coordinated so any rating will trip before another circuit breaker
twice it's rating in the event of a fault of up to 600 amps let through current.
This results in improved overall equipment performance, since only the smallest
faulted circuit is interrupted, while larger circuits remain operational.
Ambient Temperature Compensation
The 2TC 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.
Options
Longer Pushbuttons - Metric Mounting Thread - Dust Boot ¹
- Auxiliary Switch - Terminal Barriers
- Terminal Hardware
¹ Part number 14500-1 fits 15/32 bushing
Part number 14500-5 fits 7/16 bushing
| Qualifications | |
| MS3320 | 2TC2 |
| MS3320L | 2TC27 |
| MS3320V | 2TC63 |
| European Standards | |
| All US Aircraft OEM's | |
| Most European Aircraft OEMs | |
| SAE Industry Standards | |
Calibration: 1-25 Amps (Typical*)
|
Temp °C |
Min. Ult. Trip |
Max. Ult. Trip |
Trip Time - Seconds | ||
| 200% | 500% | 1000% | |||
| +25 | 115% | 138% | 4 - 16 | .4 - 4.6 | .10 - .40 |
| -54 | 115% | 165% | 7 - 35 | .6 - 3.0 | .15 - .70 |
| Performance | |
| Vibration*................. | 10 G minimum, 50-500 Hz |
| Mechanical Shock..... | 50 G |
| Acceleration.............. | 10 G |
| Weight...................... | 24 grams |
| *Other vibration levels available | |
|
|
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| Amp Rating | Voltage Drop (max)* |
| 1 | 1.10 |
| 2 | 0.70 |
| 2½ | 0.50 |
| 3 | 0.40 |
| 4 | 0.45 |
| 5 | 0.35 |
| 7½ | 0.30 |
| 10 | 0.28 |
| 15 | 0.25 |
| 20 | 0.25 |
| 25 | 0.20 |

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