Advanced Circuit Breakers

You need it ? We have it !

Crouzet proudly holds the World’s Widest Offer of Circuit Breakers
in compliance with the top Aerospace market standards

Circuit breakers

All Crouzet circuit breakers families and boxes

Electromechanical
Circuit breakers Electromechanical
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Smart
Circuit breakers Smart
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Remote control
Circuit breakers Remote control
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Power Distribution
Boxes Power distribution
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The world's widest offer of
circuit breakers in compliance
with top standards.

Specialist in Electrical Protection Devices,
our products are involved in advanced
electrical equipment onboard aircrafts and
helicopters.
Our expertise in innovative technologies and our
compliance with industry standards
have given us the reputation of top
player in the aerospace industry.

Standards :

Aerospace industry leaders choose CROUZET electrical protection components :

60 millions parts delivered worldwide every year

The world's widest circuit breakers offer

80+ programs as a trusted partner

60+ years of experience

A Global Presence

Get to know the full offer

Electromechanical

Electromechanical

Electromechanical Circuit Breakers (CB) with several different terminals (FASTON, EN, MIL...) and accessories.

Find your solution
Electromechanical
Design Lab

60+ years of aerospace qualification expertise.
Design and adaptation agility at your service : we can answer your specific needs by offering you the best customised solution, a long term partnership commitment and a multidisciplinary team dedicated to your program

Regular
Single pole
Regular
Three pole
High-power
Single pole
High-power
Three pole
Standard Mil Spec MS3320 | MS5692 | MS26574
(AS33O1) (AS5692) (AS26574)
MS5692 | MS14154
(AS5692) (AS14154)
Asd-Stan EN2495 | EN2995 | EN3773 EN2592 | EN2996 | EN3774 EN2794 | EN3661 EN2665 | EN3662
din-bundeswehr VG95345-TEIL6
VG95345-TEIL11
BACC alternate BACC18AD BACC18AC BACC18X | BACC18R BACC18AE | 10-60806-10
Expand table
Configurations Rating 0.5A - 30A 0.5A - 30A 15A - 60A 15A - 60A
Auxiliary contact
With polarized AC
With non polarized AC
Without AC
Power terminal Standard
45° or 65° (Bus bar application)
Push-Fit (0.25inch TAB)
Flying leads
Button length Normal length
Extra length
Actuation type Push pull
Push push
Threaded Barrel M12-0.75
M12-100
7/16
Canonical Barrel
Terminal Screw 8-32 UNC
6-32 UNC
M4
No Terminal Screws
Vibration level Commercial Aircraft
Fighter - Artillery Gun
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Find your solution
Smart

Smart

Arc Fault and Ground Fault Protection
Avoid drilling into the fuel tank by drastically reducing the amount of energy released by a fault as requested by AC25981

60+ years of aerospace qualification expertise
e.g. We have qualified these products by the Federal Aviation Administration with a Design Assurance Level B (DAL B)

Smart
Arc fault
Single pole
Arc fault
Three pole
Arc fault
+ Groud fault
Three pole
Standard AS5692 AS5692 AS5692
Rating 3A - 5A - 7.5A - 10A
15A - 20A - 25A
3A - 5A - 7.5A - 10A
15A - 20A - 25A
3A - 5A - 7.5A - 10A
15A - 20A - 25A
threaded barrel M12-100 M12-100 M12-100
Terminal screw 8-32 UNC 8-32 UNC 8-32 UNC
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Design Lab

60+ years of aerospace qualification expertise.
Design and adaptation agility at your service : we can answer your specific needs by offering you the best customised solution, a long term partnership commitment and a multidisciplinary team dedicated to your program

Discover our Smart Circuit Breakers

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Remote control

Remote control

Discover our Remote Control Circuit Breakers
The RCCB merges a circuit breaker and a contactor function in one single case. Allowing you to open and close the contactor at a distance just by applying a 28 V command input.

Built to last
Our RCCBs can commute at least 100,000 times! i.e 50,000 flying cycles on a cargo doors application considering take-off and landing.

Remote Control
Without
Current
Transformer
With
current
Transformer
Rating
35 A 84 354 335 84 354 435
50 A 84 354 350 84 354 450
60 A 84 354 360 84 354 460
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Design Lab

60+ years of aerospace qualification expertise.
Design and adaptation agility at your service : we can answer your specific needs by offering you the best customised solution, a long term partnership commitment and a multidisciplinary team dedicated to your program

2 products in 1 case

2 product in 1 case
  • Less wiring. Avoid the 10 to 20 cm of high-powering three-phase cables usually needed to connect these 2 products
  • Reduction of voltage drop to only 0,5 by reducing the number of contacts
  • Smaller size for a more efficient solution
  • Improved reliability
  • Strong internal protection against arcing thanks to it’s tungstane contacts
  • Power factor 0,7
Power distribution boxes

Power distribution boxes

20+ Years Designing, Developing and Manufacturing
Certified Power Distribution Boxes
Same quality and reliability level of all our Electrical Protection families.

Built to last
Our RCCBs can commute at least 100,000 times!
i.e 50,000 flying cycles on a cargo doors application considering take-off and landing.

Power distribution box

We offer :

  • Illuminated and non-illuminated Power Distribution Boxes
  • Push/Pull and Push/Push Versions
  • Wired and PCB-Faston
    Versions

+ Standard Pre-qualified Equipement

Tested to harsh environment (temperature and vibrations)

Transfer to avionics of the CB status via RS422

Can be populated with most of the CB ratings you need

Standard Pre-qualified Equipement
Helicopter

Taylor Made Solutions is on our DNA

  • Designed and tested according to :
    Logos
  • Safety is always first :
    We work accordingly to the best safety practices
    - Failure mode effects analysis (FMEA)
    - Mean Time Between Failures (MTBF)
    - D.R.E.A.D. event calculation
  • Smaller size for a more efficient solution
    Direct Maintenance Cost (DMC) accurately calculated

Why to use Crouzet Power Distribution Boxes ?

  • Light, Simple, Safe
  • Designed to be reused several times
  • Our intrinsic safety and trip free conception enable
    a high level of safety
  • Temperature compensated
  • From -55°C to 121°C
What's new ?
MS 26574 With 45° bus bar terminals
Presenting A New Family Of
Circuit Breakers
Logos

Easy to install, Easy to replace!

The new MS 26574 stands out among the MS family
thanks to the shape of its terminals at 45°
allowing it to be installed on a bus bar.

> Check the Qualified Products Database

Classification explanation
What's new
Design lab
60+ years of aerospace qualification expertise

"Design and adaptation agility at your service : we can answer your specific needs by offering you the best customised solution, a long term partnership commitment and a multidisciplinary team dedicated to your program"

Design lab
Fast delivery of Safety-Of-Flight
prototypes (1-2years)
Design lab
High quality
and efficient manufacturing

Our renowned aerospace customers

We deliver 60 millions parts worldwide every year
Dassault
Safran
Woodward
 Mitsubishi
Airbus
 Bombardier