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Rockwell Automation has released the Allen-Bradley Bulletin 300 NEMA contactors and Bulletin 100-E IEC contactors. These new contactors are designed to help global machine and equipment builders develop smaller, more energy-efficient panels in addition to helping them select components to meet numerous international standards and address changing energy-efficiency guidelines.
Traditionally, contactors have been used to switch electrical loads for numerous applications, such as motors, fans and pumps. However, large size contactors are increasingly being used in applications to isolate or bypass these loads and for switching of resistive loads. To accommodate this change, these new lines of contactors feature a universal coil, which offers operators added flexibility when controlling multiple voltages.
Previous options were available in multiple voltages and often required an AC or DC coil to control applications. With the introduction of the universal coil, operators can more easily control voltage on multiple applications with fewer parts.
IEC and NEMA Contactors Have Smaller Footprint
In addition to the universal coil, the new contactors are smaller than previous product lines. The Bulletin 100-E IEC contactors have a 25 percent smaller footprint while the Bulletin 300 NEMA contactors are 45 percent smaller than previous product lines.
The new IEC and NEMA contactors replace the Allen-Bradley Bulletin 100D IEC and Bulletin 500 NEMA Size 6-8 contactors. While the previous line featured contactors for applications from 115-860 amps, the new contactors are designed for applications from 116-2650 amps.