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T74 Thermal Breaker

The Techna T74 series ‘series-trip’, ‘push to reset’ single pole circuit breaker is based on a proven snap-acting bimetallic thermal sensing element system.

Techna T74 series circuit breakers accurately sense overload conditions and interrupt the flow of current. The resettable actuator mechanism then remains disengaged until manually reset. This trusted family of circuit breakers uses proven technology and does so at a very economical price.

The T74 series offers amperage ratings from 3A to 45A*, and is suitable for a diversity of applications. Our products are carefully calibrated and tested to ensure reliable performance under a variety of operating conditions.

The T74 is a drop-in replacement to the ETA 1658 series circuit breaker.


Accessories
Nameplate, hex nut, knurl nut and dustcaps are all available for the T74 thermal breaker. Please see the downloadable PDF for more information.


Download more information on T74 Thermal Circuit Breakers (PDF 541KB)

 
Techna T74 thermal circuit breaker; with and without high collar
 
           
    techna t74 thermal breakers have CSA certification   techna t74 thermal breakers have UR certification  
techna t74 thermal breakers have VDE certification
           
 

Technical Data

Certifications UL, CSA, VDE
Interrupting capacity 1000A
Resettable overload capacity 10 times rated current
Reset time minimum 1 minute
Dielectric strength 1500V 1 minute
Insulation resistance 100MΩ
Voltage drop Less than 0.25V
Temperature rise at terminal block Less than 65°C
       
    techna dimensions for t74 thermal breaker  
       
 
 

Also Available...

Circuit Protection Index
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T74 Thermal Breaker Part Numbers

 
 
 

Download...

Download T74 PDF (541KB)