The 500-EAD920 NEMA AC/DC contactor is manufactured by Allen-Bradley/Rockwell Automation as part of Bulletin 500 Contactors series. This device comes with a NEMA size of 4 and it has a nominal coil voltage rating of 110 Volts at 50 Hertz frequency and a coil voltage rating of 120 Volts at 60 Hertz frequency. This contactor has 2 power poles along with 1 normally open (NO) auxiliary contact. The Allen-Bradley 500-EAD920 NEMA AC contactor has 135 Amps of continuous current rating and it comprises features like a base contactor, a load side terminal, and a top wiring kit. It also comes with selectable options including the coil voltage and the number of poles that it uses. This contactor is listed for compliance with the UL, CSA, ABS, and CE standards as well as the NEMA requirements. For flexibility, the device can be ordered by the users as its individual components or as a convenient and complete modular kit.

The Allen-Bradley 500-EAD920 NEMA AC contactor has all of its power connections positioned at the top to enhance wiring convenience and to make the contactor easier to install. In addition to that, the Allen-Bradley 500-EAD920 NEMA AC contactor supports field wiring, especially for the 3-phase and single-phase industrial applications. The Bulletin 500 contactors like this one come in different NEMA sizes including NEMA sizes 0 to 4. Contactors in sizes 0 to 4 can be ordered as a complete kit or as individual components, while other contactors with NEMA sizes 00, and 5 to 9 only come as factory assembled devices. The Allen-Bradley 500-EAD920 NEMA AC contactor uses its load side terminal shield for protection, and its supported coil voltage is rated at 120 Volts.