The Klixon® 5TC7 Series 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 5TC series circuit breakers are available in 20A to 60A versions.
Includes hardware.
This 5TC7 circuit breaker (Alternate Part# 5TC7-40) is rated for 40 amps.
- Compact & Lightweight
- Single–phase
- Ambient compensated
- Trip–free design
- Coordinated ratings
- High vibration resistance
- High interrupting capacity
- Options include: standard or auxiliary switch configuration, terminal barriers
- Typical use: Aircraft, avionics and electronic systems
Product Codes | |
|---|---|
| Mfr Part No: | 5TC7-40 |
| ECCN: | EAR99 |
| SCHEDULE B CODE: | 8536.20.0020 |
Weight: Standard device: 53 grams (no hardware), 58 grams (hardware) Auxiliary device: 55 grams (no hardware), 59 grams (hardware)Current Rating: 40 ampsMechanical Shock: 50GAcceleration: 10GVibrations: 10G minimum, 80–500 Hz (other vibration levels available)Interrupt Current: 20–60 amps: 4000 amps at 28 VDC 20–60 amps: 2000 amps at 115 VAC, 400 HzEndurance: 2,500 cycles: 115 VAC, 400 Hz inductive 2,500 cycles: 28 VDC resistive 2,500 cycles: 28 VDC inductive 5,000 cycles: Mechanical, no loadASNE: ASNE0732-005 (our 5TC65 auxiliary device)NSA: NSA93121 (our 5TC50 standard device)
- Stock: Warehouse
- Manufacturer Part #: 5TC7-40
Aircraft Fitment Finder
Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
- Return shipping: paid by buyer.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.
