Type: 446/447/449

Single pole thermal-magnetic circuit breakers with tease-free, trip-free, press-to-reset snap action mechanism and special dual button manual release which avoids the danger of unintended disconnection (M-type TM CBE to EN 60934). Surface mounted, compact design available with fast acting, standard and delayed switching characteristics.
Options include auxiliary contact and remote electrical disconnection.

Data sheet

Technical Data

Voltage rating: 
  • DC 28 V
Current ratings: 
from 30 A to 400 A  type 446
from 100 A to 400 A  type 447
from 125 A to 500 A  type 449
Typical life:
1,000 operations at IN
2,000 operations mechanical
Interrupting capacity Icn:
10,000 A
Number of poles: 
  • single pole 
Mounting method: 
  • socket 
Terminal design: 
  • screw terminals 
Actuation: 
  • manual release 
  • push button 
Auxiliary contacts: 
  • with auxiliary contacts 
  • without auxiliary contacts 
Water splash protection: 
  • without water splash protection 
Illumination: 
  • without illumination 

Applications

  • Chemical, Oil & Gas 
  • Commercial Vehicles 
  • Minus DC 28 V 
  • Automation 

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Data sheet

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