3TC7 Series Circuit Breaker | 20 Amp Rating

The 3TC7 series single-phase circuit breakers provide reliable state-of-the-art circuit protection for aerospace systems. The compact and lightweight design makes these circuit breakers well suited for aircraft avionics and electronic systems. The 3TC series ratings is coordinated so any rating will trip before another rating twice its capacity in the event of a fault. Ambient temperature compensation allows the 3TC circuit breakers to operate where temperatures exceeds the 160°F maximum of non–ambient compensated thermal circuit breakers and may also operate in temperatures as high as 150°F without derating the circuit breaker while eliminating the need for added cooling.

Includes hardware.

Features

• This 3TC7 series circuit breaker is rated for 20 amps.
• Compact & lightweight
• Trip–free design
• AS58091 qualified
• Coordinated ratings
• High vibration resistance (option)
• High interrupting capacity
• Typical use: Where ambient temperature exceeds the 160°F (71°C); maximum of non–ambient compensated thermal circuit breakers

Specifications

• Weight: 0.1 lb, max.
• Dimensions: 1.094 x 0.75 x 1.49 in
• Current Rating: 20 Amps
• Vibration: 10G
• Mechanical Shock: 30G, peak
• Acceleration: 10G
• Sand and Dust: 12 hr
• Corrosion: salt spray 96 hr
• Moisture: 10 days
• Explosion Proof: while interrupting rupture currents
• Interrupt Current: 15–35 amps: 6,000 amps @ 28 VDC 15–35: 2,000 amps @ 120 VAC, 400 Hz 25 amps: 1,800 amps @ 120 VAC, 400 Hz
• Endurance: 2500 cycles: 120 VAC, 400 Hz (inductive) 5000 cycles: 120 VAC, 400 Hz (resistive) 2500 cycles: 30 VDC (inductive) 5000 cycles: 30 VDC (resistive) 10000 cycles: mechanical, no load
• Operating Altitude: 65,000 ft
• Voltage Drop: 5A – 35A: 0.25V, max.