alfanar offers a wide range of low voltage Air Circuit Breakers ( ACB ) used for different industrial and commercial applications. alfanar Terasaki Air Circuit Breaker is the world’s first Double Break ACB, having two breaking contacts per phase. The unique pole structure means that the short time withstand rating is equal to the service short-circuit breaking capacity for all models.
Specifications:
- Available Rated Currents : from 800A up to 6300A
- All ACBs tested under 50°C w/o derating
- Three frame size (800-2000A, 2500-4000A and 5000-6300A )
- Comply with IEC 60947-2, ANSI C37.13 & NEMA PUB NO.SG3
- Double opening and closing coils
- Fast interruption by unique “Double Break” system*
alfanar Terasaki MCCB have an innovative approach to product design. With direct Opening Action, we applied ideas from a machinery safety standard to the design of the MCCB switching mechanism. This pro-active development policy confirms our reputation as Innovators in Protection Technology.
Specifications:
- Available Rated Currents : from 20A up to 3200A
- Superior temperature performance up to 50°C without derating.
- Direct opening action to ensures that the force you apply to the toggle is transmitted directly to the contacts. Direct opening action is recommended by IEC 60204-1.
- Circuit breaker with integral residual current protection (CBRs): integrated protection from earth leakage faults, overloads and short-circuits in one device.
- Plug-in safety lock.